Execution of Old Guns by Variable-Speed Firing Squad

[iNoMed]

p25 gun reduced from 26x21 (546-cell BB) to 24x22 (528-cell BB), ignoring the BB-glitched Catagolue gun:

Code: Select all

x = 22, y = 24, rule = B3/S23
15b2o$15bo$12bo4bo2b2o$12b5obo2bo$10b2o4bobobo$9bo2b4o2bob2o$6bo2b3o2b
o3bo$6b3o3bo2bob2o$9bo2bobo$8b2o3bo2$2o$o2b3o$b2o8b2o$6bo4b3o$6bo$b2o
7bo$o2b3o4bob3o$2o3$13bo$14bo$12b3o!

This doesn't reduce p50 (37x22 is 814, 39x21 is 819), but it does reduce p75: (40x22 is 880, 42x21 is 882)

Code: Select all

x = 40, y = 22, rule = B3/S23
11b2o4b2o$11bobo2bobo$13bo2bo$12bo4bo10bobo2bobo$12b2o2b2o6b2obo2bo2bo
2bob2o$14b2o12bobo2bobo$6b2o$7bo$7bobo$5b2ob2o18bo6bo$4bobo9b2o8bo2bo
4bo2bo$4bobo8b2obo7bo2bo4bo2bo$2b2obob2o7b2ob2o5bo2bo4bo2bo$3bobo3bo7b
obo8bo6bo$3bobobobo8bo6bo$2obo19bobo$o2bobo18b2o$2bo5bo$3b5o2$2bob2o$
2b2obo!

Edit: Turns out I contradicted myself with the p50 gun; it does indeed get reduced to 36x22 with the help of a modified glider filter:

Code: Select all

x = 36, y = 22, rule = B3/S23
11b2o4b2o$11bobo2bobo$13bo2bo5b2o5b2o$12bo4bo3bo2bo4bo$12bo4bo4b3o5bo$
12bo4bo7b2o2b2o$6b2o6b2o4b4obobo3b2o$7bo12bo2bo3b2obo2bo$7bobo17bo3b3o
$5b2ob2o5b2o11b3o$4bobo10bo10bo3b2o$4bobo8b2obo8b2obobobo$2b2obob2o9bo
9bobobobo$3bobo3bo9bo3bo7b2ob2o$3bob2obo8b2o5b2o$2obobobo15b2o$o2b2o$
2bo4bo$3b5o2$2bob2o$2b2obo!

Edit 2: p100 gun reduced to 37x37; is there any good p5 toad replacement using the empty space available for a theoretical 37x32 build?

Code: Select all

x = 37, y = 37, rule = B3/S23
15b2o$15bo$17bo$13b4obo$12bo3bobo$12bob2o2b2o10bo$9b2obo3b2o2bo2bo4b3o
$9bo2bob2o3b2obobo2bo$11b2obo4b2o2bo3b2o$15b3o2bo$18b2o15b2o$15b2obo
12b3o2bo$15bo2bo15b2o$16b2o7bo4bo$24b3o3bo$23bo2b2o6b2o$22b5o4b3o2bo$
22bo2b2o8b2o$22bo2bo$10b2o11bobo3b2o$9b3o18bo2bo$8bob2o18bobobo$7bobo
19b2obobo$7bo2bo9bo7bo3b2o$8b2o10bobo4b5o$14b2o4b2o9bo$2ob2o8bo2bo7b4o
b2o$2obo10b2o8b2obobo$3bo5b2o16bo3bob2o$3b2o6bo14b2obob2obo$b2o2bo2bob
2o11bo4bobo$o2bob2o16b4obobo$2obobo13b2o5bob2o$bo2b3o12bobo3bo$bo5bo6b
o6bo2bo$2b5o8bo5bobo$4bo8b3o4b2ob2o!

[hotdogPi]

This is the new smallest p275 (=25×11) gun at [s]2400[s] 2280 cells, down from 2451 using a 55×5 mechanism

Code: Select all

x = 57, y = 40, rule = B3/S23
20b2o13b2o$21bo13bo$19bo17bo$18bob4o9b4obo$18bo5bo7bo3bobo$6bo10b2o2b
2obo7b2obo2b3o9bo$6b3o4bo3bo4bobob2ob2obobo5b4o4b3o$9bo2bobo2b3ob2obo
2bobo2bobobob2ob2obo2bo$8b2o3bo3bo4bob2o5b2obo3b2o3bo3b2o$16bo2b3o13b
3o$2o15b2o19b2o12b2ob2o$o2b2o13bob2o13b2obo17bo$b2ob2o12bo2bo13bo2bo
12bo2b2o$4b2o4bo8b2o3b2o4b2o4b2o14b3o$4b2o3bo3b2o9bobo2bobo20b3o$b2ob
2o4b2o14b4o14b3o4bo2b2o$o2b2o5b2ob2o9bo2b2o2bo11bo2bo9bo$2o10b3o9bo2b
2o2bo10bo9b2ob2o$26bo2bo13b3o2$33bo$14bo18bo$15bo16b2obo$13b3o14b2o3b
2o$29bo2bo2b2o$28b3ob2o2bo$29bo3b3o6b2o$30bo3bobo5b3o$30bobo9b3o$39b4o
bo$40b2o$39bo4bo2$42bobo$38bo$25bo11bo2bo$24bobo13bob2o$24bobo10bo$25b
o12bo2bo$40bo!

This isn't a record, but it's period 1875. The leftmost output outputs 3 gliders, at glider numbers #0, 11, and 44 with a cycle length of 75.

Code: Select all

x = 112, y = 68, rule = B3/S23
13b2o4b2o$13bobo2bobo70b2o4b2o$15bo2bo72bobo2bobo$14bo4bo73bo2bo$14bo
4bo72bo4bo$14bo4bo72b6o$8b2o6b2o75b4o$6bo2bo92b2o$6b2obobo90bo2bo$8bob
2o6bo81bobob2o$8bo8b4o79b2obo$6bobo7b2ob4o69b3o8bo$5bobob2o6bobo70b2o
2bo8bobo$5bobobobo6b2o2bo66b2o3bo6b2obobo$3b2o2bob2o8b3o5bo61b2ob2o6bo
bobobo$2bo4b2o19bo56bo5bo9bo2bo2b2o$3b4o19b3o54b2o18b2o4bo$3o3bo3bo50b
o22b2o19b4o$o2b3o3bobo49b3o37bo3bo3b3o$3bobo2bobo53bo35bobo4b2o2bo$4bo
4bo53b2o36bobo2bobo$32bobo43bo23bo4bo$33b2o42bo$33bo43b3o4$40bo$38bobo
30bobo$39b2o30b2o$72bo3$45bo$46b2o17bo$45b2o18bobo$65b2o3$52bo$51b3o$
52b2o2$50b2o$50b2o16$72b2o$72bobo$74bo$74b2o$35b2o$34bobo$34bo$33b2o!

EDIT: iNoMed created a Catagolue-submittable p1875, which had no previous entry, by using a Karel's p15

Code: Select all

x = 74, y = 50, rule = B3/S23
10b2o4b2o34b2o$10bobo2bobo34bo$12bo2bo38bo$11bo4bo33b4obo$11b6o32bo3bo
bo$12b4o33b2obo2b3o9bo$5b2o39b2obobo5b4o4b3o$6bo39bo2bobobob2ob2obo2bo
$6bobo4bo34b2obo3b2o3bo3b2o$7b2o6bo24bo11b3o$12bo3bo21b3o14b2o12b2ob2o
$12bo3bo20bo14b2obo17bo$7bo5bo6bobo14b2o13bo2bo6bo5bo2b2o$6bobo4b4o4b
2o30b2o6b3o5b3o$7bo7b2o4bo38b2o2bo4b3o$60bo7bo2b2o$9bo49b2o12bo$5b4obo
47bo10b2ob2o$3b3obo2b3o15bo16bo12b4o$2bo4bobo3bo12bobo16bo14b2o$o2bo5b
obobo13b2o16bo$2obobobobob2o$3bob4o32b3o3b3o$3bo53bo$4b5o24bo11bo10bo$
8bo25b2o9bo10b3o$6bo26b2o10bo$6b2o2$38bo$36b5o9bobo$35b3ob2o9b2o$36b5o
10bo$38bo6b2o$45b2o5$61bo2bob2obo2bo$60b2o2bo4bo2b2o$61bo2bob2obo2bo4$
35b2o27b2o2b2o$34bobo25b2o6b2o$34bo27b2o6b2o$33b2o27bo2bo2bo2bo$63b2o
4b2o!

[nokangaroo]

Smaller p51-based p17 gun

Probably room for improvement here (maybe Jormungant's herschel factory can be made to work)

Code: Select all

x = 144, y = 123, rule = LifeHistory
76.A$76.3A$40.A31.A6.A47.A$30.A7.3A31.3A3.2A45.3A$29.A.A5.A27.2A8.A2.
4B42.A6.A$29.BA2B4.2A27.A7.2A4.2B3.BA37.2A3.3A$30.BA.6B27.A.AB4.9B.BA
.A34.4B2.A8.2A$31.A5B20.A9.2AB6.3BA6BA30.AB3.2B4.2A7.A$30.2A2B2A2B17.
3A11.3B2.6BA3B.B30.A.AB.9B4.BA.A$28.BA6BA.B15.A14.4B2A2BA2B2A3B32.A
10B6.B2A$28.2BA2B3A3B15.2A14.2B3ABABAB3A2B33.B.6BA3B2.3B$26.2AB.A4B2A
3B.B10.4B15.2B2A2BA2B2A3B34.6BABA7B$25.A.AB.5B2A4BA2B7.3B18.2BA5BA4B
34.6BA2BA5B$25.A4.3BA6BABAB.2B3.4B18.3B5AB.B.B2A32.7B2A5B$24.2A4.9BA
2BA10B5.2A12.4B3A3B2.BA.A31.13B$28.2AB.7B3A11B5.A12.6BA2B7.A29.2AB.B.
5B2A2B$27.A.AB.22B.BA.A12.8B8.2A27.A.AB2.4BA2B2AB$27.A5.11B3A7B.B2A
14.8B25.A10.A7.2BA4BAB$26.2A5.10BA2BA9B4.2A8.9B24.3A7.2A.A8.BAB4AB$
32.A3B3.2B.BABA6BA3B4.A2.A6.9B23.A11.A.2A6.2B4A2B$31.A3B7.2BA4B2A5B.B
A.A.2A5.8B25.2A7.3A4.A6.2B5A2B$30.B3A10.B.3B2A4BA.B2A.A8.8B20.6B6.A3.
5A6.2B5A2B$29.4B14.3B3A2BA2B3.A7.2BA6B17.4B2AB9.3A13.2B4A2B$28.4B15.B
.A6BAB3.A.AB2.3B3A4B16.6B2A3B3.2A4.A.2A9.B4ABAB8.2A$27.4B17.2B2A2B2A
6.2AB.B.B5A3B15.13B.B2A4.A.A2.A7.BA4BA2B7.A$26.4B19.5BA9.4BA5BA2B16.
12B2.3AB.2AB2.2A8.B2A2BA4B2.BA.A$25.4B18.6B.AB8.3B2A2BA2B2A2B15.13B2.
A.2B2A13.2B2A5B.B.B2A$24.4B19.2A4.2BAB7.2B3ABABAB3A2B15.4B2A6B2.2A.A
15.13B$9.A13.4B21.A5.A.A7.3B2A2BA2B2A4B10.A4.4B2A4B4.A.A14.5B2A7B$9.
3A10.4B19.3A7.A7.B.3BA6B2.4B7.3A5.2BA4B5.A2.2A12.5BA2BA6B$12.A8.4B20.
A16.A6BA3B5.4B5.A7.8B5.2A14.7BABA6B$11.2A7.4B18.A18.A.AB.9B4.4B4.2A5.
10B19.4B2.3BA6B.B$11.5B3.BA2B17.3A19.AB3.2B4.2A5.9B4.4B.6B18.4B5.10BA
$13.3B2.2A2B17.A6.A20.4B2.A7.6B5.4B3.6B16.4B4.9B.BA.A$3.2A7.7B2A18.BA
3.3A22.2A3.3A4.4B2A2B2.4B4.7B2.B11.4B5.2A4.2B3.BA$3.A8.8B17.A2BA2.A8.
2A15.A6.A2.6B2A7B5.4BA7B8.4B7.A2.4B$2A.A.B3.10B13.AB3.2B4.2A7.A17.3A
6.5BABA6B6.3BA5B2AB7.ABAB5.3A3.2A$A2.3AB.2B2A7B12.A.AB.A8B4.BA.A19.A
6.6BA6B7.3BA2B2ABA3B5.B2AB6.A6.A$.2A2.BA3B2A7B13.A3BA3BA2B6.B2A25.2AB
.4BA5B6.2AB.2B2A3BA3B4.3BA11.3A$3.4A12B14.B.2A3BA4B2.3B26.A.AB3.6B7.A
.AB2.6BA2B4.4B12.A$3.A.2B3.7B.B2A13.2B2ABA10B26.A6.6B7.A7.BABA3B3.4B$
4.3AB2.7B.BA.A12.4BA10B26.2A6.4B8.2A7.2BA3B3.4B$7.A4.4B5.A12.14B36.3B
18.4B3.4B$2.5A5.4B5.2A11.13B38.2B.BA14.4B3.4B5.2A$2.A10.3BA15.2AB.B.
5BA3B37.B2ABA.A12.4B3.4B6.A$4.A9.ABAB13.A.AB2.5B3A2B36.BABABA.A11.4B
3.4B9.A.2A$3.2A10.2A2B12.A7.2B2AB2A2B21.A11.A2.A.A.A.A.2A7.4B3.4B9.2A
.A$7.2A7.4B10.2A8.3AB3AB21.3A9.4A.2A2.A2.A6.4B3.4B9.B3.A$8.A8.4B18.B
3A3BA18.A6.A12.A4.2A7.4B3.A3B9.5A.2A$3.2A.A11.4B18.3A3B2AB10.2A4.3A3.
2A10.A.A12.4B3.A3B7.A2.2A2.A.A$4.A.2A11.4B17.B2A3B3A10.A8.A2.4B8.2A
12.ABAB3.B3AB7.3AB3.A.A$4.A3.B11.4B18.A3B3AB6.2A.A7.2A4.2B3.BA16.B2AB
3.8B8.2B3.A$2.2A.3ABA11.4B16.B3AB3A8.A.A.AB4.9B.BA.A14.3BA3.9B4.A.2A.
A$3.A.A2.2B2.A9.4B15.2B2AB2A2B7.A2.2AB6.BA8BA14.4B3.11B3.2A.5A$3.A.A
3.4A7.2B.4B15.2B3A5B2.BA.A4.3B2.B5A4B.B14.4B3.11B9.3A$4.A3.BA8.10B14.
3BA5B.B.B2A5.2B2A5B2A5B14.4B3.12B10.B$8.A.2A.A4.11B13.13B8.7BABA2B3A
13.4B3.3BA10B6.2B7.2A$6.A3BA.2A3.10BABA11.14B9.A4BA2B2ABA2B12.4B3.2B
2A2B.9B4.2A3B5.A$6.A2B9.10B2AB9.10BA4B10.2A4BAB2A3B11.4B3.4B2A4.3B2A
4B2.6B.BA.A$7.A10.2BA7BA3B7.10BAB2A2B10.3B5AB.B.B2A8.4B3.6B5.2BA2BA3B
A7B.B2A$2A7.2B6.2B3A11B5.A3B2.4BA3B2A.B9.3BABABA2B2.BA.A6.4B3.6B7.2B
2AB3A4BA5B$.A5.5B4.2B2A2BA2B.8B3.A3B5.2BA3BA3BA7.9B7.A5.4B3.BA4B9.3B
3ABA4B3A2B$.A.AB.6B2.4BAB3A4.8B.B3A4.8BA.BA.A6.6BAB8.2A3.A3B3.2A4B8.
8BA6B3AB$2.2AB.12B3A2B5.3BA7B5.2A4.2B3.BA8.5BA2B11.A3B3.2B2A2B9.2A5.
2BA7BAB$4.15BA2B7.3BA5B7.A2.A2BA11.9B11.B3A3.6B11.A6.7B2AB$4.B2A11B2A
B9.3A5B4.3A3.AB13.9B10.4B3.6B9.3A6.4BABABA2B$4.B2A16B8.8B3.A6.A12.2BA
5B11.4B3.6B10.A7.4B.BABA3B$4.12B5.2A5.B3.2B2.4B6.3A4.2A8.BA6B7.B.4B3.
6B18.A3B3.5B$5.8B2A6.A5.2AB.3B3.4B5.A7.A7.9B6.7B2.6B6.2A10.B2AB5.4B$
5.8BABA6.3A2.2A3BA5.3BA12.A.AB2.2BABABA3B7.10BA3B8.A9.BABA8.B$5.7B.A
3B7.A3.B.BA.A5.3BA12.2AB.B.B5A3B6.11BABA7.A10.4B$6.5B3.4B13.BA.A5.3AB
13.3B2ABA4B2A7.10B2A8.5A5.4B5.2A$6.4B5.4B15.A6.4B12.2BAB2A2BA4BA6.2BA
8B14.A4.4B5.A$7.B8.4B14.2A6.4B11.3A2BABA7B6.B2A6B12.3AB2.7B.BA.A$17.
4B22.BABA10.5B2A5B2A2B4.2B3A4B12.A.2B3.7B.B2A6.A$18.4B22.B2AB8.B.4B5A
B2.4B3.4BA3B13.4A12B8.3A$19.4B22.A3B6.A8BAB5.4B2.6BAB11.2A2.BA3B2A7B
4.A6.A$20.4B22.4B4.A.AB.9B4.4B2.2A3BA11.A2.3AB.2B2A7B4.3A3.2A$21.4B
22.4B4.AB3.2B4.2A5.5B2A3B12.2A.A.B3.10B7.A2.4B$22.4B10.2A10.4B8.4B2.A
7.8BA15.A8.6B2A5.2A4.2B3.BA$23.4B9.A12.4B9.2A3.3A5.3BA2BA2B14.2A7.6BA
BA4.9B.BA.A$24.2B2A10.A11.4B8.A6.A6.3B3A2B8.A15.3B2.A3B5.6BA3BA$18.2A
5.2A2B5.5A12.2BAB8.3A11.7B6.3A13.5B3.4B2.4B2A3BA.B$19.A5.2BAB4.A18.2B
2A9.A12.7B4.A16.2A7.9BA4BAB$19.A.AB.7B2.BABA16.2A2B21.7B4.2A16.A8.9BA
5B$13.A6.2AB.7B3.BA.A16.4B20.8B.4B13.3A10.14B$11.3A8.14B2A17.3BA19.
11B15.A13.3BA9B$10.A6.A4.7B2AB2ABA2.2A16.3BA18.12B28.2B3A4B.B.B2A$10.
2A3.3A4.8B2AB.2B2A2.A16.3AB5.A11.12B28.B5A4B2.BA.A$8.4B2.A7.9BA3.B.A.
2A17.4B4.3A10.11B27.BA7B7.A$3.AB3.2B4.2A5.8B8.A21.4B6.A12.3B2A2B28.2B
A5B8.2A$2.A.AB.3A6B4.9B7.2A22.4B4.2A11.2BA2BA2B29.B2A5B$3.A3B3A4B5.4B
2.3B33.4B3.10B.4BA2BA2B27.9B$4.B.A4BA4B2.3AB3.5B32.4B4.12B2AB2A4B25.
9B$5.A2BA2BA8BA7.2A22.A10.4B2.12B2AB2A5B24.5B2AB$5.6BA7BA8.A13.A7.3A
11.3BA.11B2A3B2A5B.B12.2A8.5BA2B$5.B5A8B10.3A9.A.A5.A15.ABA13B3A2BA6B
2A12.A7.7BAB$5.3BABA7B13.A9.BA2B4.2A15.2A18BA6B2A12.A.AB2.4B5AB$3.2AB
.B.A8B24.2B.BA4B16.5B2.2B2.B3.BABA8B14.2AB.B.4B3A2B$2.A.AB2.10B25.3BA
2B19.2BAB5.3B3.BA5B.3B16.9BA3B$2.A7.3B2A4B23.4B2A2B17.4B2A4.B2AB4.4B
21.14B$.2A8.3BA4B21.8BA.B15.4B2A2B4.2A5.3B22.5BA9B$10.2B2A4B22.7B2A2B
14.4B2.4B8.2AB24.BA4BA9B$11.BA7B18.2AB.2B4AB2AB.B10.4B4.3BA6.A.AB23.B
.A3B2A4B2.3B$11.7BAB17.A.AB.2B2A2B2A6B7.4B6.3BA5.A25.A3BA6B6.B2A$13.
4B2A2B16.A4.B2ABA2B2AB2A2B.2B3.ABAB8.3AB3.2A24.A.AB.9B4.BA.A$12.4BA3B
8.2A6.2A4.2BA2BABA11BA2BA5.2A3.4B29.AB3.2B4.2A7.A$12.4B2A3B7.A11.2AB.
A4B2A10BA3B5.A5.4B33.4B2.A8.2A$13.10B2.BA.A10.A.AB.22B.BA.A6.BABA34.
2A3.3A$13.8BA.B.B2A11.A5.3BA10B2A4BA.B2A8.B2AB33.A6.A$13.7BABA3B12.2A
5.A2BA11BABA2BA2B4.2A5.A3B33.3A$12.8B5AB18.BABA3.2B.2B2AB2A2BAB2AB4.A
7.4B34.A$11.A7BA6B18.3B7.6B2A2B2A2B.BA.A8.3BA$10.A8BA2BA2BA16.4B10.B.
B2AB4A2B.B2A10.ABAB$10.2BA2.4BA4BA.B15.2A15.2B2A7B13.2A2B$8.A2B6.4B3A
3BA15.A15.B.A8B14.4B$7.A.2A4.6B3A.BA.A11.3A17.2B2A4B17.2BAB$7.A7.2A4.
2B3.BA12.A20.2BA3B19.2B2A$6.2A8.A2.4B36.4BAB.2B19.2A2B$13.3A3.2A38.2A
4.2BAB19.4B$13.A6.A39.A5.A.A20.3BA$17.3A37.3A7.A22.3BA$17.A39.A33.3AB
!

[Jormungant]

Smaller p51-based p17 gun

Probably room for improvement here (maybe Jormungant's herschel factory can be made to work)

Code: Select all

x = 144, y = 123, rule = LifeHistory
76.A$76.3A$40.A31.A6.A47.A$30.A7.3A31.3A3.2A45.3A$29.A.A5.A27.2A8.A2.
4B42.A6.A$29.BA2B4.2A27.A7.2A4.2B3.BA37.2A3.3A$30.BA.6B27.A.AB4.9B.BA
.A34.4B2.A8.2A$31.A5B20.A9.2AB6.3BA6BA30.AB3.2B4.2A7.A$30.2A2B2A2B17.
3A11.3B2.6BA3B.B30.A.AB.9B4.BA.A$28.BA6BA.B15.A14.4B2A2BA2B2A3B32.A
10B6.B2A$28.2BA2B3A3B15.2A14.2B3ABABAB3A2B33.B.6BA3B2.3B$26.2AB.A4B2A
3B.B10.4B15.2B2A2BA2B2A3B34.6BABA7B$25.A.AB.5B2A4BA2B7.3B18.2BA5BA4B
34.6BA2BA5B$25.A4.3BA6BABAB.2B3.4B18.3B5AB.B.B2A32.7B2A5B$24.2A4.9BA
2BA10B5.2A12.4B3A3B2.BA.A31.13B$28.2AB.7B3A11B5.A12.6BA2B7.A29.2AB.B.
5B2A2B$27.A.AB.22B.BA.A12.8B8.2A27.A.AB2.4BA2B2AB$27.A5.11B3A7B.B2A
14.8B25.A10.A7.2BA4BAB$26.2A5.10BA2BA9B4.2A8.9B24.3A7.2A.A8.BAB4AB$
32.A3B3.2B.BABA6BA3B4.A2.A6.9B23.A11.A.2A6.2B4A2B$31.A3B7.2BA4B2A5B.B
A.A.2A5.8B25.2A7.3A4.A6.2B5A2B$30.B3A10.B.3B2A4BA.B2A.A8.8B20.6B6.A3.
5A6.2B5A2B$29.4B14.3B3A2BA2B3.A7.2BA6B17.4B2AB9.3A13.2B4A2B$28.4B15.B
.A6BAB3.A.AB2.3B3A4B16.6B2A3B3.2A4.A.2A9.B4ABAB8.2A$27.4B17.2B2A2B2A
6.2AB.B.B5A3B15.13B.B2A4.A.A2.A7.BA4BA2B7.A$26.4B19.5BA9.4BA5BA2B16.
12B2.3AB.2AB2.2A8.B2A2BA4B2.BA.A$25.4B18.6B.AB8.3B2A2BA2B2A2B15.13B2.
A.2B2A13.2B2A5B.B.B2A$24.4B19.2A4.2BAB7.2B3ABABAB3A2B15.4B2A6B2.2A.A
15.13B$9.A13.4B21.A5.A.A7.3B2A2BA2B2A4B10.A4.4B2A4B4.A.A14.5B2A7B$9.
3A10.4B19.3A7.A7.B.3BA6B2.4B7.3A5.2BA4B5.A2.2A12.5BA2BA6B$12.A8.4B20.
A16.A6BA3B5.4B5.A7.8B5.2A14.7BABA6B$11.2A7.4B18.A18.A.AB.9B4.4B4.2A5.
10B19.4B2.3BA6B.B$11.5B3.BA2B17.3A19.AB3.2B4.2A5.9B4.4B.6B18.4B5.10BA
$13.3B2.2A2B17.A6.A20.4B2.A7.6B5.4B3.6B16.4B4.9B.BA.A$3.2A7.7B2A18.BA
3.3A22.2A3.3A4.4B2A2B2.4B4.7B2.B11.4B5.2A4.2B3.BA$3.A8.8B17.A2BA2.A8.
2A15.A6.A2.6B2A7B5.4BA7B8.4B7.A2.4B$2A.A.B3.10B13.AB3.2B4.2A7.A17.3A
6.5BABA6B6.3BA5B2AB7.ABAB5.3A3.2A$A2.3AB.2B2A7B12.A.AB.A8B4.BA.A19.A
6.6BA6B7.3BA2B2ABA3B5.B2AB6.A6.A$.2A2.BA3B2A7B13.A3BA3BA2B6.B2A25.2AB
.4BA5B6.2AB.2B2A3BA3B4.3BA11.3A$3.4A12B14.B.2A3BA4B2.3B26.A.AB3.6B7.A
.AB2.6BA2B4.4B12.A$3.A.2B3.7B.B2A13.2B2ABA10B26.A6.6B7.A7.BABA3B3.4B$
4.3AB2.7B.BA.A12.4BA10B26.2A6.4B8.2A7.2BA3B3.4B$7.A4.4B5.A12.14B36.3B
18.4B3.4B$2.5A5.4B5.2A11.13B38.2B.BA14.4B3.4B5.2A$2.A10.3BA15.2AB.B.
5BA3B37.B2ABA.A12.4B3.4B6.A$4.A9.ABAB13.A.AB2.5B3A2B36.BABABA.A11.4B
3.4B9.A.2A$3.2A10.2A2B12.A7.2B2AB2A2B21.A11.A2.A.A.A.A.2A7.4B3.4B9.2A
.A$7.2A7.4B10.2A8.3AB3AB21.3A9.4A.2A2.A2.A6.4B3.4B9.B3.A$8.A8.4B18.B
3A3BA18.A6.A12.A4.2A7.4B3.A3B9.5A.2A$3.2A.A11.4B18.3A3B2AB10.2A4.3A3.
2A10.A.A12.4B3.A3B7.A2.2A2.A.A$4.A.2A11.4B17.B2A3B3A10.A8.A2.4B8.2A
12.ABAB3.B3AB7.3AB3.A.A$4.A3.B11.4B18.A3B3AB6.2A.A7.2A4.2B3.BA16.B2AB
3.8B8.2B3.A$2.2A.3ABA11.4B16.B3AB3A8.A.A.AB4.9B.BA.A14.3BA3.9B4.A.2A.
A$3.A.A2.2B2.A9.4B15.2B2AB2A2B7.A2.2AB6.BA8BA14.4B3.11B3.2A.5A$3.A.A
3.4A7.2B.4B15.2B3A5B2.BA.A4.3B2.B5A4B.B14.4B3.11B9.3A$4.A3.BA8.10B14.
3BA5B.B.B2A5.2B2A5B2A5B14.4B3.12B10.B$8.A.2A.A4.11B13.13B8.7BABA2B3A
13.4B3.3BA10B6.2B7.2A$6.A3BA.2A3.10BABA11.14B9.A4BA2B2ABA2B12.4B3.2B
2A2B.9B4.2A3B5.A$6.A2B9.10B2AB9.10BA4B10.2A4BAB2A3B11.4B3.4B2A4.3B2A
4B2.6B.BA.A$7.A10.2BA7BA3B7.10BAB2A2B10.3B5AB.B.B2A8.4B3.6B5.2BA2BA3B
A7B.B2A$2A7.2B6.2B3A11B5.A3B2.4BA3B2A.B9.3BABABA2B2.BA.A6.4B3.6B7.2B
2AB3A4BA5B$.A5.5B4.2B2A2BA2B.8B3.A3B5.2BA3BA3BA7.9B7.A5.4B3.BA4B9.3B
3ABA4B3A2B$.A.AB.6B2.4BAB3A4.8B.B3A4.8BA.BA.A6.6BAB8.2A3.A3B3.2A4B8.
8BA6B3AB$2.2AB.12B3A2B5.3BA7B5.2A4.2B3.BA8.5BA2B11.A3B3.2B2A2B9.2A5.
2BA7BAB$4.15BA2B7.3BA5B7.A2.A2BA11.9B11.B3A3.6B11.A6.7B2AB$4.B2A11B2A
B9.3A5B4.3A3.AB13.9B10.4B3.6B9.3A6.4BABABA2B$4.B2A16B8.8B3.A6.A12.2BA
5B11.4B3.6B10.A7.4B.BABA3B$4.12B5.2A5.B3.2B2.4B6.3A4.2A8.BA6B7.B.4B3.
6B18.A3B3.5B$5.8B2A6.A5.2AB.3B3.4B5.A7.A7.9B6.7B2.6B6.2A10.B2AB5.4B$
5.8BABA6.3A2.2A3BA5.3BA12.A.AB2.2BABABA3B7.10BA3B8.A9.BABA8.B$5.7B.A
3B7.A3.B.BA.A5.3BA12.2AB.B.B5A3B6.11BABA7.A10.4B$6.5B3.4B13.BA.A5.3AB
13.3B2ABA4B2A7.10B2A8.5A5.4B5.2A$6.4B5.4B15.A6.4B12.2BAB2A2BA4BA6.2BA
8B14.A4.4B5.A$7.B8.4B14.2A6.4B11.3A2BABA7B6.B2A6B12.3AB2.7B.BA.A$17.
4B22.BABA10.5B2A5B2A2B4.2B3A4B12.A.2B3.7B.B2A6.A$18.4B22.B2AB8.B.4B5A
B2.4B3.4BA3B13.4A12B8.3A$19.4B22.A3B6.A8BAB5.4B2.6BAB11.2A2.BA3B2A7B
4.A6.A$20.4B22.4B4.A.AB.9B4.4B2.2A3BA11.A2.3AB.2B2A7B4.3A3.2A$21.4B
22.4B4.AB3.2B4.2A5.5B2A3B12.2A.A.B3.10B7.A2.4B$22.4B10.2A10.4B8.4B2.A
7.8BA15.A8.6B2A5.2A4.2B3.BA$23.4B9.A12.4B9.2A3.3A5.3BA2BA2B14.2A7.6BA
BA4.9B.BA.A$24.2B2A10.A11.4B8.A6.A6.3B3A2B8.A15.3B2.A3B5.6BA3BA$18.2A
5.2A2B5.5A12.2BAB8.3A11.7B6.3A13.5B3.4B2.4B2A3BA.B$19.A5.2BAB4.A18.2B
2A9.A12.7B4.A16.2A7.9BA4BAB$19.A.AB.7B2.BABA16.2A2B21.7B4.2A16.A8.9BA
5B$13.A6.2AB.7B3.BA.A16.4B20.8B.4B13.3A10.14B$11.3A8.14B2A17.3BA19.
11B15.A13.3BA9B$10.A6.A4.7B2AB2ABA2.2A16.3BA18.12B28.2B3A4B.B.B2A$10.
2A3.3A4.8B2AB.2B2A2.A16.3AB5.A11.12B28.B5A4B2.BA.A$8.4B2.A7.9BA3.B.A.
2A17.4B4.3A10.11B27.BA7B7.A$3.AB3.2B4.2A5.8B8.A21.4B6.A12.3B2A2B28.2B
A5B8.2A$2.A.AB.3A6B4.9B7.2A22.4B4.2A11.2BA2BA2B29.B2A5B$3.A3B3A4B5.4B
2.3B33.4B3.10B.4BA2BA2B27.9B$4.B.A4BA4B2.3AB3.5B32.4B4.12B2AB2A4B25.
9B$5.A2BA2BA8BA7.2A22.A10.4B2.12B2AB2A5B24.5B2AB$5.6BA7BA8.A13.A7.3A
11.3BA.11B2A3B2A5B.B12.2A8.5BA2B$5.B5A8B10.3A9.A.A5.A15.ABA13B3A2BA6B
2A12.A7.7BAB$5.3BABA7B13.A9.BA2B4.2A15.2A18BA6B2A12.A.AB2.4B5AB$3.2AB
.B.A8B24.2B.BA4B16.5B2.2B2.B3.BABA8B14.2AB.B.4B3A2B$2.A.AB2.10B25.3BA
2B19.2BAB5.3B3.BA5B.3B16.9BA3B$2.A7.3B2A4B23.4B2A2B17.4B2A4.B2AB4.4B
21.14B$.2A8.3BA4B21.8BA.B15.4B2A2B4.2A5.3B22.5BA9B$10.2B2A4B22.7B2A2B
14.4B2.4B8.2AB24.BA4BA9B$11.BA7B18.2AB.2B4AB2AB.B10.4B4.3BA6.A.AB23.B
.A3B2A4B2.3B$11.7BAB17.A.AB.2B2A2B2A6B7.4B6.3BA5.A25.A3BA6B6.B2A$13.
4B2A2B16.A4.B2ABA2B2AB2A2B.2B3.ABAB8.3AB3.2A24.A.AB.9B4.BA.A$12.4BA3B
8.2A6.2A4.2BA2BABA11BA2BA5.2A3.4B29.AB3.2B4.2A7.A$12.4B2A3B7.A11.2AB.
A4B2A10BA3B5.A5.4B33.4B2.A8.2A$13.10B2.BA.A10.A.AB.22B.BA.A6.BABA34.
2A3.3A$13.8BA.B.B2A11.A5.3BA10B2A4BA.B2A8.B2AB33.A6.A$13.7BABA3B12.2A
5.A2BA11BABA2BA2B4.2A5.A3B33.3A$12.8B5AB18.BABA3.2B.2B2AB2A2BAB2AB4.A
7.4B34.A$11.A7BA6B18.3B7.6B2A2B2A2B.BA.A8.3BA$10.A8BA2BA2BA16.4B10.B.
B2AB4A2B.B2A10.ABAB$10.2BA2.4BA4BA.B15.2A15.2B2A7B13.2A2B$8.A2B6.4B3A
3BA15.A15.B.A8B14.4B$7.A.2A4.6B3A.BA.A11.3A17.2B2A4B17.2BAB$7.A7.2A4.
2B3.BA12.A20.2BA3B19.2B2A$6.2A8.A2.4B36.4BAB.2B19.2A2B$13.3A3.2A38.2A
4.2BAB19.4B$13.A6.A39.A5.A.A20.3BA$17.3A37.3A7.A22.3BA$17.A39.A33.3AB
!

Another weird idea is to reuse a track that can reflect glider as a side effect, reducing the number of needed glider by 1 (but more bouncing around would be needed, so I am not sure if it can truly help, especially since the 2 glider parallel streams cannot be made using snarks)

Code: Select all

x = 49, y = 57, rule = LifeHistory
3$36.B.5B$39.4B$39.4B$2.5B.B29.4B$2.4B31.ABAB$2.4B30.B2AB$3.4B29.2BA$
4.BABA28.2B$5.B2AB27.B$6.A2B30.B.4B$7.2B33.3B$8.B21.B11.3B$29.2B10.4B
$28.3B9.ABAB$14.B12.4B8.B2AB$14.2B10.5B8.2BA$14.4B7.A5B8.2B$14.5B5.A6B
8.B$14.6B3.B3A4B$14.5BA.2B.3B$14.6BA2B.3B6.B$14.4B3A2B.3B5.2B$18.4B2.
3B4.4B$18.3BAB.2B4.4B$17.4BA3B4.5B$17.2B.2BA2B3.A5B$19.7B.A6B4.A$19.8B
3A4B2.3A$19.10B6.A$18.12B5.2A$18.B2A11BA4B$18.B2A10BABAB$18.18B$16.2A
B.12B2A3B$15.A.AB.6B2.4BA2B2A3.B$15.A5.5B4.3B3A3B.B$14.2A7.2B6.3BA6B$
21.B10.9B$20.2AB9.9B$20.BAB2A.2A3.9B$22.B.2A.A4.7B$18.A3.AB8.6B$17.A.
A3.4A7.2B4.B$17.A.A2.2A2.A$15.A.A.2A3B$15.2A.A3.A$18.A.2A$5.A7.4A.A.A
$4.A.A5.A3.A.A3.A$4.BA2B4.2A3.2A2.2A!

[iNoMed]

cutting off a full diagonal from the southwest-travelling glider streams:

Code: Select all

x = 143, y = 122, rule = B3/S23
75bo$75b3o$39bo31bo6bo47bo$29bo7b3o31b3o3b2o45b3o$28bobo5bo27b2o8bo48b
o6bo$29bo6b2o27bo7b2o10bo37b2o3b3o$65bobo16bobo40bo8b2o$31b2o23bo9b2o
8bo8bo30bo10b2o7bo$30bob2obo18b3o18b3o37bobo16bobo$30bo3bo2bo15bo20b5o
37bo17b2o$30bobobob2o15b2o18b2o3b2o44bo$25b2o4b3o2b3o35b5o46b2o$24bobo
11b3o9b3o22b3o47b2o$24bo14b2o11bo23bo7b2o39b2o$23b2o13bo12bo5b2o25bobo
$27b2o10bo17bo28bo29b2o$26bobo10bo4bo10bobo28b2o27bobo10b2o$26bo17bo
10b2o47bo10bo9b2o2bo$25b2o5bo12bo13b2o41b3o7b2obo10b3o$31bo11b2o14bo2b
o38bo11bob2o10bo$31b3o9b3o11bobob2o38b2o7b3o4bo$45b3o2b3o4b2obo48bo3b
5o$46b2obobobo6bo37b2o10b3o16bo$46bo2bo3bo6bobo35b2o6bo5bob2o12b3o10b
2o$48bob2obo7b2o7bo35b2o6bo2bo9bo2b2o9bo$41b2o8b2o16b3o37bobobo2b2o9b
2o10bobo$41bobo24b5o34bo2b2o27b2o$9bo33bo2b2o6bo12b2o3b2o33b2obo$9b3o
27b4o4bo5bobo12b5o16bo6b2o10bobo19b2o$12bo26bo3b4o7bo14b3o15b3o7b2o8bo
2b2o18b2o$11b2o28bo2bo16bo8bo15bo9bo10b2o21b2o$20bo19b3o17bobo23b2o44b
o$18b2o19bo6bo14bo10b2o66bo$3b2o14b2o19bo3b3o25bo66bobo$3bo33bo2bo2bo
8b2o14b2o3b3o52b2o10bo$2obo28bo10b2o7bo15bo6bo9bo16bo15bobo8bo$o2b3o4b
2o19bobo2bo13bobo16b3o12b3o15b3ob2o10b2o6b3o3b2o$b2o3bo3b2o20bo3bo3bo
9b2o19bo13b2o16bobo2bo10bo6bo6bo$3b4o28b2o3bo35b2o18b2o7bobo22b3o$3bo
15b2o15b2obo35bobo5b2o10bobo6b2o24bo$4b3o12bobo16bo36bo7b2o10bo$7bo13b
o52b2o18b2o$2b5o14b2o$2bo13bo15b2o9bo44bo30b2o$4bo9bobo14bobo8b3o39b2o
bobo29bo$3b2o10b2o14bo9b2ob2o23bo13bobobobo31bob2o$7b2o21b2o8b3ob3o22b
3o8bo2bobobob2o29b2obo$8bo31b3o3bo18bo6bo7b4ob2o2bo16bo12bo3bo$3b2obo
33b3o3b2o11b2o4b3o3b2o11bo4bo15bo15b2ob2o$4bob2o33b2o3b3o10bo8bo13b2o
2b3o8bobo5b3o7bo2b2o2bobo$4bo37bo3b3o7b2obo7b2o10bo3bob2o10b2o16b4o3bo
bo$2b2ob3obo32b3ob3o8bobobo16bobo2bo14bo20bo3bo$3bobo6bo30b2ob2o9bo2b
2o8bo8bo2b2o30bob2o$3bobo3b4o31b3o8bobo10b5o41b2ob2obo$4bo4bo35bo9b2o
7b2o5b2o47b2o$8bob2obo56bobo2b3o23bo$6bo3bob2o13bobo34bo4bo2b2obo23b2o
16b2o7b2o$6bo21b2o20bo14b2o4bob2o25b2o14bo3bo5bo$7bo12bo7bo20bob2o15b
5o5b2o28b2o6bo3bo2b2obo$2o17b3o16bo9bo3b2o14bobobo5bobo26bo2bo3b2o5bo
3bo$bo16b2o2bo14bo10bo3bo3bo23bo13bo13b2o3bo4bo$bobo14bob3o14b3o12bo2b
obo12bo9b2o3bo6b2o19bo3bobo$2b2o14b3o10bo12b2o10bo13bo13bo8b2o18bo4bo
4bo$19bo12bo12bo2bo2bo32b3o18b2o7b2o5b2o$5b2o11b2o10b3o9b3o3bo57bo9bo
3bo$5b2o35bo6bo14bo38b3o10bo3bo$21b2o23b3o4b2o9bo38bo13b3o$13b2o6bo5b
2o17bo7bo$13bobo6b3o2b2o3bo8bo12bobo5bobobo20bo9b2o10bo$13bo10bo6bobo
8bo12b2o5b5o20bobo8bo10b2o$32bobo5b3o17b2obo4b2o17b2o7bo11bobo$34bo24b
ob2o2bo4bo8bo16b5o14b2o$34b2o21b3o2bobo14b2o20bo13bo$44bobo15b2o5b2o8b
3o16b3o12bobo$45b2o15b5o14bo15bo15b2o6bo$45bo9bo8bo18bo13b4o20b3o$54bo
bo21b2o3bo11b2o3bo3b2o11bo6bo$55bo10b2o10b2o14bo2b3o4b2o11b3o3b2o$36b
2o28bo15bo11b2obo22bo$36bo25b2o3b3o8bo2bo15bo21b2o4b2o4bo$26b2o10bo23b
o6bo9b3o10bo4b2o14b2o10bobo2bobo$18b2o5b2o7b5o14bo9b3o24b3o20bobo9bobo
3bo$19bo7bo5bo20b2o9bo23bo23bo11bob2o$19bobo12bobo16b2o34b2o14b2o17bo$
13bo6b2o13bobo68bo18bo$11b3o22b2o20bo44b3o$10bo6bo11b2ob2obo2b2o19bo
43bo$10b2o3b3o12b2o4b2o2bo16b3o6bo63b2o$14bo16bo5bob2o25b3o50b3o8bobo$
3bo10b2o21bo31bo15b2o32b3o10bo$2bobo2b3o26b2o30b2o13bo2bo31bo3bo9b2o$
3bo3b3o73bo2bo32b2o2bo$6bo4bo6b3o61b2ob2o30b2ob3o$5bo2bo2bo8bo7b2o22bo
28b2ob2o30b3ob2o$11bo7bo8bo13bo7b3o14bo12b2o3b2o28bo2b2o$6b5o18b3o9bob
o5bo15bobo13b3o2bo6b2o10b2o9bo3bo$8bobo20bo10bo6b2o15b2o18bo6b2o11bo
10b3o$3b2o4bo36bo36bobo20bobo8b3o$2bobo41bo23bo13bo22b2o$2bo10b2o31b2o
23b2o5b2o$b2o11bo33bo21b2o6b2o$12b2o33b2o34b2o28bo$12bo25b2o4b4ob2o24b
o6bobo29bo$18bo18bobo4b2o2b2o26bo5bo27b2obo$17b2o18bo5b2obo2b2ob2o8bob
o9b3o4b2o24bo3bobo11b2o$16bo11b2o6b2o6bo2bobo11bo2bo5b2o34bobo2bobo11b
obo$16b2o10bo11b2o2bo4b2o10bo8bo36bo4b2o4b2o7bo$26bobo10bobo26bobo7bob
o37bo8b2o$21bo4b2o11bo8bo10b2o4bo2b2o9b2o33b2o3b3o$20bobo15b2o5bo2bo
11bobo2bo6b2o5bo34bo6bo$20b5o20bobo8b2ob2o2bob2o5bo42b3o$11bo7bo40b2o
2b2o4bobo11bo32bo$10bo8bo2bo2bo33b2ob4o4b2o10bobo$12bo6bo4bo17b2o17b2o
20b2o$8bo12b3o3bo15bo17bo$7bob2o10b3o2bobo11b3o19b2o23bo$7bo7b2o10bo
12bo22bo24b2o$6b2o8bo46bo23b2o$13b3o3b2o38b2o6bo$13bo6bo39bo5bobo23bo$
17b3o37b3o7bo25bo$17bo39bo33b3o!

[nokangaroo]

@Jormungant: Something like this:

Code: Select all

x = 112, y = 115, rule = LifeHistory
95.A$93.3A$92.A6.A$92.2A3.3A$90.4B2.A8.2A$85.AB3.2B4.2A7.A$84.A.AB.9B
4.BA.A$85.A10B6.B2A$86.B.4B2A4B2.3B$87.5B2A9B$87.9BA5B$87.8B2A4B$87.
8BA4B$85.2AB.B.4BA4B$84.A.AB2.5BAB2AB$84.A7.3BA2BA2B$83.2A8.3B2A3B$
92.8B$93.9B$93.9B$95.8B$94.3B2A3B8.2A$94.2BA2BA3B7.A$95.B2ABA5B2.BA.A
$95.4BA4B.B.B2A$95.4BA8B$94.4B2A8B$93.5BA9B$92.9B2A5B$91.4B2.4B2A4B.B
$90.4B5.10BA$89.4B4.9B.BA.A$88.ABAB5.2A4.2B3.BA$87.B2AB7.A2.4B$86.3BA
5.3A3.2A$85.4B6.A6.A$84.4B11.3A$83.4B12.A$82.4B$81.4B$80.4B$79.4B$78.
4B$77.4B15.A$76.A3B15.A.A$75.A3B16.A.A$74.B3A16.2A.2A$73.4B16.B7.A$
72.4B15.BAB8A$71.4B16.2A2B3.A$70.4B18.B2.A4B2A$69.4B21.BA.2A2.A$68.4B
23.A3B2A$67.4B9.2B14.3B$66.4B8.4BAB7.2A.BA2B.2A$65.4B8.B4ABA7.A2.3A2B
A.A$64.4B8.3BA4BA7.3A.2AB.2A$21.A41.BA2B8.2BA6B10.3BAB$21.3A7.A30.2A
2B8.2BA7B10.A2B$24.A5.A.A28.2B2A8.10BAB6.2B7.2A$23.2A4.2BAB27.4B8.4B.
2A7B4.5B5.A$23.B3A2B.2B27.4B8.4B4.4BA4B2.6B.BA.A$4.A20.4A2B27.4B8.4B
5.2B3A12B.B2A$4.3A17.A3B2A2B25.4B8.4B7.11BA6B$7.A15.B.2A3BA3B22.4B8.
4B9.10B2A2B2AB$6.2A15.3B4A4B21.4B8.4B8.11BABA2B2AB$6.4B10.B.3A3BA3B.B
2A18.4B8.BA2B9.2A5.12B$8.B2A7.14B.BA.A16.4B8.2A2B11.A6.10B$8.BABA3.2B
.2B2ABABA6B4.A15.4B8.2B2A9.3A6.11B$2.2A5.A10B2ABABA6B4.2A13.4B8.4B10.
A7.4B.7B$3.A5.12BA8B.B2A16.A3B8.4B18.4B3.5B$3.A.AB.22B.BA.A14.BABA8.
4B18.4B5.4B$4.2AB.8BA12B5.A13.2B2A8.4B18.4B8.B$2A4.6BABAB2A10BA5.2A
11.4B8.4B18.4B$.A4.6BABAB2A2B.2B3.ABAB16.4B8.4B18.4B$.A.AB.14B7.2A2B
14.4B8.4B18.4B$2.2AB.3BA3B3A.B10.4B12.4B8.4B18.2A2B$4.4B4A3B14.4B10.
4B8.4B18.ABAB$4.3BA3B2A.B15.4B8.4B8.4B18.3BA$6.2B2A3BA17.4B6.4B8.A3B
18.4B$7.2B4A19.4B4.4B8.BABA18.4B$6.2B.2B3AB18.4B2.4B8.2B2A18.4B$5.BA
2B4.2A19.8B8.4B18.4B$5.A.A5.A21.2BABAB8.4B18.4B$6.A7.3A19.B2AB8.4B18.
4B$16.A18.3BA8.4B18.4B$34.7B5.4B18.4B$33.A8B3.4B18.4B$32.BABA7B.4B7.A
10.4B$31.2B2A.11B6.3A9.2A2B$30.4B2.10B6.A11.2B2A$29.4B2.12B5.2A9.2BAB
$28.4B3.B2A2BABA11B8.4B$27.4B4.B2A2B2A10B9.4B$26.4B5.6BA11B7.4B$25.A
3B4.2AB.12B3A2B5.4B$24.A3B4.A.AB.6B2.4BA4B4.4B$23.B3A5.A5.5B4.7B2A.4B
$22.4B5.2A7.2B6.BA10B$21.4B11.2BA10.7BA2B$20.ABAB10.BA3B10.6BA2B$19.B
2AB8.2A.B2A.3A7.A4BA3B$18.3BA9.A.A2B3A2.A7.AB4AB$17.4B11.2A.2BAB.2A7.
BA4B$17.3B14.3B14.2B$17.2B13.2A3BA$17.B13.A2.2A.AB$31.2A4BA2.B$34.A3.
2B2A$31.8ABAB$31.A7.B$34.2A.2A$35.A.A$35.A.A$36.A!

[nokangaroo]

@iNoMed: Can be further reduced:

Code: Select all

x = 140, y = 122, rule = LifeHistory
75.A$75.3A$39.A31.A6.A$29.A7.3A31.3A3.2A$28.A.A5.A27.2A8.A2.4B$28.BA
2B4.2A27.A7.2A4.2B3.BA37.A$29.2B.6B27.A.AB4.9B.BA.A34.3A$30.B2A3B20.A
9.2AB6.BA8BA34.A6.A$29.BAB2ABAB17.3A11.3B2.2B3A5B.B35.2A3.3A$27.3BA3B
AB.A15.A14.6B5A5B34.4B2.A8.2A$27.3BABABAB2A15.2A14.4B2A3B2A4B29.AB3.
2B4.2A7.A$25.2AB.2B3A2B3A.B10.4B15.4B5A5B28.A.AB.9B4.BA.A$24.A.AB.9B
3A2B7.3A18.4B3A6B29.A3B2A5B6.B2A$24.A4.10B2A2B.2B3.3BA18.5BA3B.B.B2A
28.B.A3B2A4B2.3B$23.2A4.9BA12BA5.2A12.10B2.BA.A28.B5A10B$27.2AB.8BA
12B5.A12.9B7.A28.3B2A10B$26.A.AB.8BA4BA8B.BA.A12.8B8.2A27.14B$26.A5.
12BA8B.B2A14.8B25.A10.13B$25.2A5.A12BA9B4.2A8.9B24.3A8.2AB.B.4B3A2B$
31.A3B3.2B.2B2A10B4.A2.A6.9B23.A10.A.AB2.4BA3BAB$30.B3A7.2B3A9B.BA.A.
2A5.8B25.2A9.A7.BA5BAB$29.4B10.B.3A2B3A2B.B2A.A8.8B20.6B8.2A8.4BABAB$
28.4B14.2ABABABA3B3.A7.9B17.4B2AB19.A7B$27.4B15.A.BA3BA3B3.A.AB2.10B
16.6B2A3B3.AB13.3BABA2BA$26.4B17.BAB2ABAB6.2AB.B.3BA5B15.13B.B2A3.B2A
B6.A2BABA3B$25.4B12.2A5.3B2AB9.6B3A4B16.12B2.3BA.4A.A6.7BA$24.4B13.A.
A2.6B.2B8.5B5A4B15.13B2.A.3B2.3BA4.BABA4B8.2A$9.A13.4B16.A2.2A4.2BAB
7.4B2A3B2A4B15.12B2.2A.BA2.A2B.A3.BA5BAB7.A$9.3A10.4B13.4A4.A5.A.A7.
5B5A6B10.A4.2B2A6B4.A.B2.B2.2A5.BA3BA4B2.BA.A$12.A8.4B14.A3.4A7.A7.B.
5B3A2B2.4B7.3A5.2B2A3B6.A.4AB8.2B3A4B.B.B2A$11.2A7.4B17.A2.A16.A8BAB
5.4B5.A7.2BA5B7.2A.2A9.13B$11.5B3.BA2B17.3A17.A.AB.9B4.4B4.2A5.10B19.
14B$13.3B2.2A2B17.A6.A14.AB3.2B4.2A5.9B4.4B.6B18.10B2A3B$3.2A7.7B2A
18.BA3.3A19.4B2.A7.6B5.4B3.6B16.10B5AB$3.A8.8B17.A2BA2.A8.2A14.2A3.3A
4.8B2.4B4.7B2.B11.4B2.4B2A3BA.B$2A.A.B3.10B13.AB3.2B4.2A7.A15.A6.A2.
7BA7B5.4BA7B8.ABAB5.5B2A3BA$A2.3AB.2B2A7B12.A.AB.A8B4.BA.A16.3A6.6B3A
5B6.4B3AB2A2B7.B2AB4.9B.BA.A$.2A2.BA3B2A7B13.A3BA3BA2B6.B2A19.A6.7B2A
4B7.5BABA2BA2B5.3BA5.2A4.2B3.BA$3.4A12B14.B.2A3BA4B2.3B26.2AB.10B6.2A
B.5BABA3B4.4B7.A2.4B$3.A.2B3.7B.B2A13.2B2ABA10B25.A.AB3.B2A3B7.A.AB2.
3B2A4B4.4B5.3A3.2A$4.3AB2.7B.BA.A12.4BA10B26.A6.B2A3B7.A7.7B3.4B6.A6.
A$7.A4.4B5.A12.14B26.2A6.4B8.2A7.6B3.4B11.3A$2.5A5.4B5.2A11.13B36.3B
18.4B3.4B12.A$2.A10.3BA15.2AB.B.5BA3B37.2B.BA14.4B3.4B5.2A$4.A9.ABAB
13.A.AB2.5B3A2B36.B2ABA.A12.4B3.4B6.A$3.2A10.2A2B12.A7.2B2AB2A2B21.A
12.BABABA.A11.4B3.4B9.A.2A$7.2A7.4B10.2A8.3AB3AB21.3A8.A2.A.A.A.2A9.
4B3.4B9.2A.A$8.A8.4B18.B3A3BA18.A6.A7.4A.2A2.A9.4B3.A3B9.A3.A$3.2A.A
11.4B18.3A3B2AB10.2A4.3A3.2A11.A4.A8.4B3.A3B9.3B2A.2A$4.A.2A11.4B17.B
2A3B3A10.A8.A2.4B7.2A2.3A8.ABAB3.B3A7.A2.2A2.A.A$4.A3.B11.4B18.A3B3AB
6.2A.A7.2A4.2B3.BA3.A.2A9.B2AB3.5B7.4A3.A.A$2.2A.3ABA11.4B16.B3AB3A8.
A.A.AB4.9B.BA.A2.A11.3BA3.8B8.BA3.A$3.A.A2.2B2.A9.4B15.2B2AB2A2B7.A2.
2AB6.BA8BA2.2A10.4B3.9B4.A.2A.B$3.A.A3.4A7.2B.4B15.2B3A5B2.BA.A4.3B2.
B5A4B.B14.4B3.11B3.2A.2ABAB$4.A3.BA8.10B14.3BA5B.B.B2A5.2B2A5B2A5B14.
4B3.11B9.B2A$8.A.2A.A4.11B13.13B8.7BABA2B3A13.4B3.3BA8B10.B$6.A3BA.2A
3.10BABA11.14B9.A4BA2B2ABA2B12.4B3.2B2A10B6.2A7.2A$6.A2B9.10B2AB9.10B
A4B10.2A4BAB2A3B11.4B3.4B2A.9B4.A3BA5.A$7.A10.2BA7BA3B7.10BAB2A2B10.
3B5AB.B.B2A8.4B3.6B4.3B2A4B2.A3BAB.2A.A$2A7.2B6.2B3A11B5.A3B2.4BA3B2A
.B9.3BABABA2B2.BA.A6.4B3.6B5.2BA2BA3B2A5BA.2BA$.A5.5B4.2B2A2BA2B.8B3.
A3B5.2BA3BA3BA7.9B7.A5.4B3.BA4B7.2B2A3BA4BA5B$.A.AB.6B2.4BAB3A4.8B.B
3A4.8BA.BA.A6.6BAB8.2A3.A3B3.2A4B9.6BA3BABA4B$2.2AB.12B3A2B5.3BA7B5.
2A4.2B3.BA8.5BA2B11.A3B3.2B2A2B8.8BA4BA4BA$4.15BA2B7.3BA5B7.A2.A2BA
11.9B11.B3A3.6B9.2A5.2B2A5B2AB$4.B2A11B2AB9.3A5B4.3A3.AB13.9B10.4B3.
6B11.A6.3BA3BA2B$4.B2A16B8.8B3.A6.A12.2BA5B11.4B3.6B9.3A6.4BA3BA2B$4.
12B5.2A5.B3.2B2.4B6.3A4.2A8.BA6B7.B.4B3.6B10.A7.4B.B3A3B$5.8B2A6.A5.
2AB.3B3.4B5.A7.A7.9B6.7B2.6B18.4B3.5B$5.8BABA6.3A2.2A3BA5.3BA12.A.AB
2.2BABABA3B7.10BA3B6.2A10.A3B5.4B$5.7B.A3B7.A3.B.BA.A5.3BA12.2AB.B.B
5A3B6.11BABA8.A9.B2AB8.B$6.5B3.4B13.BA.A5.3AB13.3B2ABA4B2A7.10B2A7.A
10.BABA$6.4B5.4B15.A6.4B12.2BAB2A2BA4BA6.2BA8B8.5A5.4B5.2A$7.B8.4B14.
2A6.4B11.3A2BABA7B6.B2A6B14.A4.4B5.A$17.4B22.BABA10.5B2A5B2A2B4.2B3A
4B12.3AB2.7B.BA.A$18.4B22.B2AB8.B.4B5AB2.4B3.4BA3B12.A.2B3.7B.B2A6.A$
19.4B22.A3B6.A8BAB5.4B2.6BAB12.4A12B8.3A$20.4B22.4B4.A.AB.9B4.4B2.2A
3BA11.2A2.BA3B2A7B4.A6.A$21.4B22.4B4.AB3.2B4.2A5.5B2A3B11.A2.3AB.2B2A
7B4.3A3.2A$22.4B10.2A10.4B8.4B2.A7.8BA11.2A.A.B3.10B7.A2.4B$23.4B9.A
12.4B9.2A3.3A5.3BA2BA2B13.A8.8B5.2A4.2A3.BA$24.2B2A10.A11.4B8.A6.A6.
3B3A2B8.A4.2A7.7B2A4.6BABA.BA.A$18.2A5.2A2B5.5A12.2BAB8.3A11.7B6.3A
14.3B2.BABA5.4BABA3BA$19.A5.2BAB4.A18.2B2A9.A12.7B4.A15.5B3.A3B2.6BAB
2A.B$19.A.AB.7B2.BABA16.2A2B21.7B4.2A14.2A7.10BA5B$13.A6.2AB.7B3.BA.A
16.4B20.8B.4B15.A8.10BA4B$11.3A8.14B2A17.3BA19.11B14.3A10.14B$10.A6.A
4.7B2AB2ABA2.2A16.3BA18.12B13.A13.13B$10.2A3.3A4.8B2AB.2B2A2.A16.3AB
5.A11.12B27.9B.B.B2A$8.4B2.A7.9BA3.B.A.2A17.4B4.3A10.11B27.2B3A5B2.BA
.A$3.AB3.2B4.2A5.8B8.A21.4B6.A12.3B2A2B27.3B3A3B7.A$2.A.AB.3A6B4.9B7.
2A22.4B4.2A11.2BA2BA2B27.2BA3BAB8.2A$3.A3B3A4B5.4B2.3B33.4B3.10B.4BA
2BA2B28.2B2A2BAB$4.B.A4BA4B2.3AB3.5B32.4B4.12B2AB2A4B24.2B2AB3AB$5.A
2BA2BA8BA7.2A22.A10.4B2.12B2AB2A5B24.B3AB2A2B$5.6BA7BA8.A13.A7.3A11.
3BA.11B2A3B2A5B.B20.BA2B2A2B$5.B5A8B10.3A9.A.A5.A15.ABA13B3A2BA6B2A
10.2A8.BA3BA2B$5.3BABA7B13.A9.BA2B4.2A15.2A18BA6B2A11.A7.3B3A3B$3.2AB
.B.A8B24.2B.BA4B16.5B2.2B2.B3.BABA8B12.A.AB2.5B3A2B$2.A.AB2.10B25.3BA
2B19.2BAB5.3B3.BA5B.3B13.2AB.B.9B$2.A7.3B2A4B23.4B2A2B17.4B2A4.B2AB4.
4B20.13B$.2A8.3BA4B21.8BA.B15.4B2A2B4.2A5.3B21.14B$10.2B2A4B22.7B2A2B
14.4B2.4B8.2AB23.4BA10B$11.BA7B18.2AB.2B4AB2AB.B10.4B4.3BA6.A.AB23.5B
A10B$11.7BAB17.A.AB.2B2A2B2A6B7.4B6.3BA5.A25.B.2ABA6B2.3B$13.4B2A2B
16.A4.B2ABA2B2AB2A2B.2B3.ABAB8.3AB3.2A24.A3BABA4B6.B2A$12.4BA3B8.2A6.
2A4.2BA2BABA11BA2BA5.2A3.4B27.A.AB.ABA6B4.BA.A$12.4B2A3B7.A11.2AB.A4B
2A10BA3B5.A5.4B27.AB3.2A4.2A7.A$13.10B2.BA.A10.A.AB.22B.BA.A6.BABA31.
4B2.A8.2A$13.8BA.B.B2A11.A5.3BA10B2A4BA.B2A8.B2AB32.2A3.3A$13.7BABA3B
12.2A5.A2BA11BABA2BA2B4.2A5.A3B31.A6.A$12.8B5AB18.BABA3.2B.2B2AB2A2BA
B2AB4.A7.4B31.3A$11.A7BA6B18.3B7.6B2A2B2A2B.BA.A8.3BA32.A$10.A8BA2BA
2BA16.4B10.B.B2AB4A2B.B2A10.ABAB$10.2BA2.4BA4BA.B15.2A15.2B2A7B13.2A
2B$8.A2B6.4B3A3BA15.A15.B.A8B14.4B$7.A.2A4.6B3A.BA.A11.3A17.2B2A4B17.
2BAB$7.A7.2A4.2B3.BA12.A20.2BA3B19.2B2A$6.2A8.A2.4B36.4BAB.2B19.2A2B$
13.3A3.2A38.2A4.2BAB19.4B$13.A6.A39.A5.A.A20.3BA$17.3A37.3A7.A22.3BA$
17.A39.A33.3AB!

[dvgrn]

There's no hope for a p3 eater that fits in that space toward the upper right to save one more column, correct? I haven't tried running the JLS search.

[Jormungant]

@Jormungant: Something like this:

Code: Select all

x = 112, y = 115, rule = LifeHistory
95.A$93.3A$92.A6.A$92.2A3.3A$90.4B2.A8.2A$85.AB3.2B4.2A7.A$84.A.AB.9B
4.BA.A$85.A10B6.B2A$86.B.4B2A4B2.3B$87.5B2A9B$87.9BA5B$87.8B2A4B$87.
8BA4B$85.2AB.B.4BA4B$84.A.AB2.5BAB2AB$84.A7.3BA2BA2B$83.2A8.3B2A3B$
92.8B$93.9B$93.9B$95.8B$94.3B2A3B8.2A$94.2BA2BA3B7.A$95.B2ABA5B2.BA.A
$95.4BA4B.B.B2A$95.4BA8B$94.4B2A8B$93.5BA9B$92.9B2A5B$91.4B2.4B2A4B.B
$90.4B5.10BA$89.4B4.9B.BA.A$88.ABAB5.2A4.2B3.BA$87.B2AB7.A2.4B$86.3BA
5.3A3.2A$85.4B6.A6.A$84.4B11.3A$83.4B12.A$82.4B$81.4B$80.4B$79.4B$78.
4B$77.4B15.A$76.A3B15.A.A$75.A3B16.A.A$74.B3A16.2A.2A$73.4B16.B7.A$
72.4B15.BAB8A$71.4B16.2A2B3.A$70.4B18.B2.A4B2A$69.4B21.BA.2A2.A$68.4B
23.A3B2A$67.4B9.2B14.3B$66.4B8.4BAB7.2A.BA2B.2A$65.4B8.B4ABA7.A2.3A2B
A.A$64.4B8.3BA4BA7.3A.2AB.2A$21.A41.BA2B8.2BA6B10.3BAB$21.3A7.A30.2A
2B8.2BA7B10.A2B$24.A5.A.A28.2B2A8.10BAB6.2B7.2A$23.2A4.2BAB27.4B8.4B.
2A7B4.5B5.A$23.B3A2B.2B27.4B8.4B4.4BA4B2.6B.BA.A$4.A20.4A2B27.4B8.4B
5.2B3A12B.B2A$4.3A17.A3B2A2B25.4B8.4B7.11BA6B$7.A15.B.2A3BA3B22.4B8.
4B9.10B2A2B2AB$6.2A15.3B4A4B21.4B8.4B8.11BABA2B2AB$6.4B10.B.3A3BA3B.B
2A18.4B8.BA2B9.2A5.12B$8.B2A7.14B.BA.A16.4B8.2A2B11.A6.10B$8.BABA3.2B
.2B2ABABA6B4.A15.4B8.2B2A9.3A6.11B$2.2A5.A10B2ABABA6B4.2A13.4B8.4B10.
A7.4B.7B$3.A5.12BA8B.B2A16.A3B8.4B18.4B3.5B$3.A.AB.22B.BA.A14.BABA8.
4B18.4B5.4B$4.2AB.8BA12B5.A13.2B2A8.4B18.4B8.B$2A4.6BABAB2A10BA5.2A
11.4B8.4B18.4B$.A4.6BABAB2A2B.2B3.ABAB16.4B8.4B18.4B$.A.AB.14B7.2A2B
14.4B8.4B18.4B$2.2AB.3BA3B3A.B10.4B12.4B8.4B18.2A2B$4.4B4A3B14.4B10.
4B8.4B18.ABAB$4.3BA3B2A.B15.4B8.4B8.4B18.3BA$6.2B2A3BA17.4B6.4B8.A3B
18.4B$7.2B4A19.4B4.4B8.BABA18.4B$6.2B.2B3AB18.4B2.4B8.2B2A18.4B$5.BA
2B4.2A19.8B8.4B18.4B$5.A.A5.A21.2BABAB8.4B18.4B$6.A7.3A19.B2AB8.4B18.
4B$16.A18.3BA8.4B18.4B$34.7B5.4B18.4B$33.A8B3.4B18.4B$32.BABA7B.4B7.A
10.4B$31.2B2A.11B6.3A9.2A2B$30.4B2.10B6.A11.2B2A$29.4B2.12B5.2A9.2BAB
$28.4B3.B2A2BABA11B8.4B$27.4B4.B2A2B2A10B9.4B$26.4B5.6BA11B7.4B$25.A
3B4.2AB.12B3A2B5.4B$24.A3B4.A.AB.6B2.4BA4B4.4B$23.B3A5.A5.5B4.7B2A.4B
$22.4B5.2A7.2B6.BA10B$21.4B11.2BA10.7BA2B$20.ABAB10.BA3B10.6BA2B$19.B
2AB8.2A.B2A.3A7.A4BA3B$18.3BA9.A.A2B3A2.A7.AB4AB$17.4B11.2A.2BAB.2A7.
BA4B$17.3B14.3B14.2B$17.2B13.2A3BA$17.B13.A2.2A.AB$31.2A4BA2.B$34.A3.
2B2A$31.8ABAB$31.A7.B$34.2A.2A$35.A.A$35.A.A$36.A!

Indeed, that would be the idea, I was hoping to reuse the output stream in a more compact way, but there is not many ways to change the phase of these gliders at p51. Well, still managed to score some stylish points somehow:

Code: Select all

x = 114, y = 118, rule = LifeHistory
8$61.A$59.3A$58.A6.A$58.2A3.3A$56.4B2.A8.2A$51.AB3.2B4.2A7.A$50.A.AB.
4B9.BA.A$51.A9B7.B2A$52.B.4B2A3B3.3B$53.5B2AB4.4B$53.8B3.4B$53.9BA.3B
$53.8B3A2B$51.2AB.B.3BABABA$50.A.AB2.4BA2B3A$50.A7.3B2A2BA$49.2A8.6BA
$58.5BABA$59.4B.4B$59.4B.4B33.A$61.ABA5B31.A.A$61.A6B8.2A22.A.A$61.A
2B2A3B7.A22.2A.2A$61.3A2BA4B2.BA.A21.A7.A$62.ABABA3B.B.B2A20.3AB7A$
61.2B3A8B22.4A3.A$60.3B.A9B23.B2.B6A$59.4B3.8B25.2A.BA2.A$58.4B4.B2A
5B26.BAB3A$57.4B3.3B2A4B.B10.2B14.3B$56.A3B6.9BA7.6B7.2A.3AB.2A$55.A
3B9.4B.BA.A5.7B7.A2.3B3A.A$55.3A5.2A4.2B3.BA5.9B7.3A.B2A.2A$26.A37.A
2.4B9.A8B10.4AB$26.3A7.A24.3A3.2A10.A9B10.3B$29.A5.A.A23.A6.A9.B3A8B
6.2B7.2A$28.2A4.2BAB27.3A9.4B.9B4.2BA2B5.A$28.6B.2B6.2A.2A.B15.A10.4B
4.3B2A4B2.B3A2B.BA.A$9.A20.6B7.2A.A15.A12.4B5.2BA2BA5B5AB.B2A$9.3A17.
8B9.A13.3A12.3B7.2B2A5B2A3B2A2B$12.A15.B.9B7.A.A10.A13.4B9.7B3A3B3AB$
11.2A15.11B8.2A11.A11.4B8.10B2A3B2A2B$11.4B10.B.6B2A2B.B2A15.A3.A10.
4B9.2A5.4B5A3B$13.3B7.10B2A2B.BA.A14.A13.4B11.A6.4B3A3B$13.4B3.2B.5B
2A7B4.A5.2A5.A14.4B9.3A6.6BA4B$7.2A5.5B4A4BA2BA6B4.2A4.2A5.A.4BA4B3.
4B10.A7.4B.7B$8.A5.4B2A7BAB3A3B.B2A15.A4BA7.BA2B18.4B3.5B$8.A.AB.4BAB
A2BA2BA2BABA4B.BA.A14.3BA8.2A2B18.4B5.4B$9.2AB.3B3ABA7B2A4B5.A13.4B
10.2A18.2A2B8.B$5.2A4.6BA2BA4B4A5B5.2A11.4B13.3B14.ABAB$6.A4.7B2A5B.
2B3.4B16.A3B14.2B14.3BA$6.A.AB.2B2A10B7.4B14.BABA15.2B.4B8.4B$7.2AB.
2B2A6B.B10.4B12.2B2A8.14B8.4B$9.11B14.3BA10.4B8.4B2.2B.5B8.4B$9.9B.B
15.ABAB8.4B8.4B6.8B4.4B$11.8B17.2A2B6.4B8.4B6.8B4.4B$12.6B19.4B4.4B8.
4B7.8B3.4B$11.2B.6B18.4B2.4B8.4B8.9B.4B$10.BA2B4.2A19.8B8.4B9.B2.2B.
2B$10.A.A5.A21.6B8.A3B13.B3.B$11.A7.3A19.4B8.BABA18.B$21.A18.4B8.2B2A
18.2A7.A$39.7B5.4B18.2B2A6.3A$38.ABA6B3.4B18.2BAB3.A6.A$37.B2A8B.4B7.
A10.4B4.3A3.2A$36.3BA.4BA6B6.3A9.4B8.A$35.4B2.3B3A4B6.A11.4B2.A5.2A
10.A$34.A3B2.3B5A4B5.2A9.4B2.2A16.A.A$33.BABA3.2B2A3B2A10B8.4B3.A.A
11.2A3.A$32.2B2A4.B3A3B3A7B9.4B15.2A3.A$31.4B5.2B2A3B2A5B2A2B7.4B17.
5A$30.4B4.2AB.B5A5BA2BA2B5.4B19.2A$29.4B4.A.AB.2B3AB2.4B2A3B4.4B$28.
4B5.A5.2BA2B4.9B.4B$27.4B5.2A7.2B6.8B3AB16.3A8.2A$26.A3B11.3B10.9BA
16.A3.A7.A.A$25.A3B10.B4A10.8BA16.A5.A8.A$24.B3A8.2A.2AB.3A7.9B17.A.A
12.2A$23.4B9.A.3A3B2.A7.7B25.A$22.4B11.2A.B3A.2A7.6B17.A2.A.A$21.ABAB
14.3B14.2B22.A.A2.A$21.2AB13.3ABAB33.A$22.A13.A2.AB.2A23.2A12.A.A$36.
6AB2.B22.A8.A5.A$39.A3.4A21.A.A7.A3.A$36.7AB3A22.2A8.3A$36.A7.A$39.2A
.2A$40.A.A31.2A$40.A.A29.5A$41.A30.A3.2A$69.A3.2A12.2A$68.A.A16.A.A$
69.A10.2A7.A$80.A8.2A$76.2A3.3A$76.A6.A$77.3A$79.A!

[iNoMed]

p100 gun reduced from 37x37 (1369-cell BB) to 39x32 (1248-cell BB) using a thinner p5 boat from jslife's p5 sparkers of all things:

Code: Select all

x = 39, y = 32, rule = B3/S23
3b2o2b2ob2o20bo$b3obo2bobobo8bo3b2o3b3o$o4b2obo3bo2bo3b3o2bobo2bo$ob3o
3bo3bobob2o3bo3bo3b2o$bo2b2obo4bobo2bo2bo$5b2o3b3o4bo2bo16b2o$7bo4bo2b
o18b2o2bo$bo2bobo9b2o15b2ob2o$b4ob5obo2bobo15b2o$5bo6bobo3bo7b3o4b2o$
3bobo2b3obobob2o7bo2bo4b2ob2o$3b2o4bobo3bo9bo2bo5b2o2bo$7bo8bobo5bo2bo
9b2o$7b2o8b2o6b3o$13bo11b2o4b2o$11b2obo17bo2bo$10bo21bobobo$9bobo2bo
16b2obobo$9bo2bo9bobo5bo3b2o$10b2o10b2o6b2obo$16b2o5bo6bo2bo$2b2ob2o8b
o2bo7bob2ob2o$2b2obo10b2o7bobobobo$5bo5bo17bo3bob2o$5b2o4b2o15b2obob2o
bo$3b2o2bob2ob2o11bo4bobo$2bo2b2o18b4obobo$2b2obobo13b2o5bob2o$3bo2bob
o12bobo3bo$3bo5bo5bo7bo2bo$4b5o7b2o5bobo$6bo8b2o5b2ob2o!

[Wyirm]

p100 gun reduced from 37x37 (1369-cell BB) to 39x32 (1248-cell BB) using a thinner p5 boat from jslife's p5 sparkers of all things:

Code: Select all

x = 39, y = 32, rule = B3/S23
3b2o2b2ob2o20bo$b3obo2bobobo8bo3b2o3b3o$o4b2obo3bo2bo3b3o2bobo2bo$ob3o
3bo3bobob2o3bo3bo3b2o$bo2b2obo4bobo2bo2bo$5b2o3b3o4bo2bo16b2o$7bo4bo2b
o18b2o2bo$bo2bobo9b2o15b2ob2o$b4ob5obo2bobo15b2o$5bo6bobo3bo7b3o4b2o$
3bobo2b3obobob2o7bo2bo4b2ob2o$3b2o4bobo3bo9bo2bo5b2o2bo$7bo8bobo5bo2bo
9b2o$7b2o8b2o6b3o$13bo11b2o4b2o$11b2obo17bo2bo$10bo21bobobo$9bobo2bo
16b2obobo$9bo2bo9bobo5bo3b2o$10b2o10b2o6b2obo$16b2o5bo6bo2bo$2b2ob2o8b
o2bo7bob2ob2o$2b2obo10b2o7bobobobo$5bo5bo17bo3bob2o$5b2o4b2o15b2obob2o
bo$3b2o2bob2ob2o11bo4bobo$2bo2b2o18b4obobo$2b2obobo13b2o5bob2o$3bo2bob
o12bobo3bo$3bo5bo5bo7bo2bo$4b5o7b2o5bobo$6bo8b2o5b2ob2o!

Ever so slight population reduction (-3 cells)

Code: Select all

x = 39, y = 32, rule = LifeSuper
3.2A2.2A.2A20.A$.3A.A2.A.A.A8.A3.2A3.3A$A4.2A.A3.A2.A3.3A2.A.A2.A$A.
3A3.A3.A.A.2A3.A3.A3.2A$.A2.2A.A4.A.A2.A2.A$5.2A3.3A4.A2.A16.2A$7.A4.
A2.A18.2A2.A$.A2.A.A9.2A15.2A.2A$.4A.5A.A2.A.A15.2A$5.A6.A.A3.A7.3A4.
2A$3.A.A2.3A.A.A.2A7.A2.A4.2A.2A$3.2A4.A.A3.A9.A2.A5.2A2.A$7.A8.A.A5.
A2.A9.2A$7.2A8.2A6.3A$13.A11.2A4.2A$11.2A.A17.A2.A$10.A21.A.A.A$9.A.A
2.A16.2A.A.A$9.A2.A9.A.A5.A3.2A$10.2A10.2A6.2A.A$16.2A5.A6.A2.A$2.2A.
2A8.A2.A7.A.2A.2A$2.2A.A10.2A7.A.A.A.A3.2A$5.A5.A17.A3.A2.A$5.2A4.2A
15.2A.A.2A$3.2A2.A.2A.2A11.A4.A.A$2.A2.2A18.4A.A.A$2.2A.A.A13.2A5.A.
2A$3.A2.A.A12.A.A3.A$3.A5.A5.A7.A2.A$4.5A7.2A5.A.A$6.A8.2A5.2DA2D!

[nokangaroo]

p17 gun: I was right about Jormungant's herschel factory:

Code: Select all

x = 129, y = 109, rule = LifeHistory
34.A36.A$24.A7.3A26.A7.3A$23.A.A5.A28.A.A5.A$23.BA2B4.2A27.BA2B4.2A$
24.2B.6B28.2B.6B$25.6B20.A10.6B$24.B3A4B17.3A9.8B18.2A$22.2ABA5B.B15.
A10.9B.B17.A$22.2B2AB3A3B15.2A9.11B14.BA.A$20.A2B.10B.B10.4B7.2AB.2B
2A6B.B11.B2A$19.A.2A.4B2A5BA2B7.3B8.A.AB.2B2A10B7.3B$19.A4.10BABAB.2B
3.4B8.A4.14B.2B3.4B$18.2A4.9BA2BA10B5.2A.2A4.5B2AB2A13B5.2A$22.2AB.6B
2AB2A2BA7B5.A6.2AB.3BA2BABA5BA6B5.A$21.A.AB.7BABA2BABA7B.BA.A5.A.AB.
3BA2B2A6B2A2BA3B.BA.A$14.A6.A5.7BA2B2AB2A6B.B2A6.A5.6BA5BABA2BA3B.B2A
$14.3A3.2A5.10BA2BA9B4.2A.2A5.13B2AB2A5B4.2A$17.A8.4B3.2B.BABA10B4.A
8.4B3.2B.14B4.A$16.2A7.BA2B7.2BA5B2A4B.2A.A7.4B7.10B2A2B.BA.A$16.5B3.
2A2B10.B.10B.2BA7.4B10.B.6B2A2B.B2A13.A$18.3B2.2B2A14.3B3AB2A2B8.4B
14.11B5.A7.3A$8.2A7.9B15.B.5BAB2A7.A3B15.B.9B4.A.A5.A$8.A8.8B17.4B3AB
8.BABA17.8B6.BA2B4.2A$5.2A.A.B3.10B19.6B8.2B2A19.6B8.2B.6B$5.A2.3AB.
3BA7B17.6B.2B6.4B18.6B.2B8.6B20.A$6.2A2.BA3B2A7B17.2A4.2BAB4.4B19.2A
4.2BAB6.8B17.3A$8.AB2A12B18.A5.A.A3.4B21.A5.A.A4.9B.B15.A$8.A.2B3.7B.
B2A13.3A7.A3.4B19.3A7.A5.6BA4B15.2A$3.2A4.3AB2.7B.BA.A12.A12.4B20.A
13.2AB.3B3A4B.B10.4B$3.A2.A5.A4.4B5.A24.4B14.A19.A.AB.2B2AB2A7B7.3B$
4.8A5.3BA5.2A22.4B15.3A7.A9.A4.B3AB3A6B.2B3.4B$9.A8.ABAB27.4B19.A5.A.
A7.2A4.2B2AB2A16B5.2A$4.2A.A11.2A2B25.4B19.2A4.2BAB11.2AB.B3A17B5.A$
5.A.2A11.4B23.4B20.6B.2B11.A.AB.2BA16BA2B.BA.A$5.A3.B11.4B21.ABAB23.
6B12.A5.17B3AB.B2A$3.2A.3ABA11.4B19.B2AB3.2A18.8B10.2A5.16B2AB2A2B4.
2A$4.A.A2.2B2.A9.4B17.3BA5.A17.B.9B14.4B3.2B.6B3AB3AB4.A$4.A.A3.4A7.
2B.4B15.4B6.A.AB14.11B13.4B7.7B2AB2A2B.BA.A$5.A3.BA8.10B13.4B8.2AB11.
B.10B.B2A10.4B10.B.4B3A3B.B2A$9.A.2A.A4.BABA7B11.4B11.3B7.9B2A3B.BA.A
8.4B14.4BA6B$7.A3BA.2A3.2B4A7B9.4B12.4B3.2B.3B2A3BA2BA2B4.A7.4B15.B.
9B$7.A2B9.BA2B2A7B7.4B7.2A5.11BABA3BABA3B4.2A5.4B17.8B$8.A10.5B2A7B5.
4B9.A5.5B2A4BA6BA2B.B2A8.4B19.6B$.2A7.2B6.3B2A8BABA3.4B10.A.AB.6BAB2A
2B2ABA6B.BA.A6.4B18.6B.2B$2.A5.5B4.4B3A2B.5B2AB.4B12.2AB.2BA6BA4B2A5B
5.A5.A3B19.2A4.2BAB$2.A.AB.6B2.5BABAB4.4BA6B9.2A4.3BABA3BABA11B5.2A3.
BABA13.2A2.A3.A5.A.A$3.2AB.13B2A2B5.9B11.A4.2BA2BA3B2A3B.2B3.4B8.2B2A
13.A.A2.4A7.A$5.18B2.2A3.7BA11.A.AB.3B2A9B7.4B6.4B8.2A4.A$5.B2A3B2A9B
4.A4.4BABAB11.2AB.10B.B10.4B4.4B4.2A.A2.A2.2A.6A$5.B2A3BABA10B2.A.AB
2.2B2.2A2B12.11B14.4B2.4B4.A.A.2A.A.A.A.A2.A2.A$5.6BA5B5.2A3.2AB2.3B
2.4B11.9B.B15.8B5.A6.A.ABABAB3.2A$6.10B6.A6.3B.AB3.4B12.8B17.3BA2B4.B
2A6.A.AB2AB$6.11B6.3A4.B3A5.4B12.6B19.3BA.2B.2B9.AB.2B$6.7B.4B7.A4.A
9.4B10.2B.6B15.3B3A6B4A.2A5.3B$7.5B3.4B9.3AB2A7.4B8.BA2B4.2A15.10B.BA
2.A.A6.4B6.2A$7.4B5.4B7.A4.A.A7.3BA7.A.A5.A12.A.2AB.10B2.A2.A4.3BA2B
6.A$8.B8.4B7.3A3.A8.3BA7.A7.3A7.3AB2AB3.8B3.2A5.2B3AB3.BA.A$18.4B8.2A
2.2A8.3AB16.A6.A4.B4.10B7.3B5A2B.B2A$19.4B22.4B23.3A.2A3.10B6.3B2A3B
2A3B6.A$20.4B22.4B24.A.A5.9B5.3B3A3B3A2B6.3A$21.4B10.2A10.BABA23.A.A
7.7B4.5B2A3B2A3B2.A6.A$22.2B2A9.A12.B2AB23.A8.7B3.4B2.B5A2B4.3A3.2A$
23.2A2B10.A11.A3B30.6B4.4B5.3A3B7.A2.4B$17.2A5.BA2B5.5A12.4B29.B2ABAB
3.4B4.B3A5B5.2A4.2B3.BA$18.A5.4B4.A18.4B28.BA2BA2B.4B5.2A4.4B4.9B.BA.
A$18.A.AB.7B2.B3A16.4B28.B3A6B7.A5.4B5.10BA$12.A6.2AB.7B3.2B.A16.4B
26.10B5.3A7.4B2.10B.B$10.3A8.12B4A17.4B26.8B6.A10.11B2A3B$9.A6.A4.7B
2A3BAB2.2A16.2BAB25.7B19.B3A6B2AB2A$9.2A3.3A4.7B2A2B.B3A2.A16.2B2A24.
6B8.A12.A4BA5BA2B$7.B2AB2.A7.10B3.B.A.2A17.2A2B23.6B6.3A13.A3BA8B$2.
2A3.2A4.2A5.8B8.A21.4B22.7B4.A16.5BA3B.B.B2A$.A.2B.2BA6B4.9B7.2A22.3B
A21.7B4.2A15.2BA3BA3B2.BA.A$2.A4BA5B5.3AB2.3B33.3BA20.8B.4B14.4B2ABAB
7.A$3.A.ABA7B2.3BA3.5B32.3AB19.8B3A16.6BAB8.2A$4.15BA7.2A33.4B18.5BA
4BAB16.8B$4.3BABA9B8.A22.A12.4B5.A11.5BA5BA14.9B$4.3BA2B2A6B10.3A19.
3A7.A3.4B4.3A10.10BA14.9B$4.13B13.A22.A5.A.A3.4B6.A12.B2A4B14.8B$2.2A
B.B.9B35.2A4.2BAB4.4B4.2A11.A3BA3B5.2A8.BA6B$.A.AB2.10B35.6B.2B6.4B3.
10B.2BAB2A2BAB6.A7.BAB2A4B$.A7.3B3A3B15.A20.B3A2B8.3BA4.11BA3BA5B4.A.
AB2.3BA3BA2B$2A8.BA2BA3B15.3A17.8B8.ABAB2.14BABA5B5.2AB.B.3BA5B$9.BA
2B2A2B19.A15.B.2B2A5B7.2A2B.14B3A6B.B4.8BA3BA$10.B2A6B16.2A15.5BA5B8.
28B2A3.2BA5BA4BA$10.6B2AB16.4B10.B.10B.B2A7.2BA24B2A3.2AB2A6B3AB$12.
2B2A2BAB17.3B7.4B2A8B.BA.A7.2B2AB2.2B2.B3.12B4.3B2A11B$11.3BA2BAB8.2A
8.2BAB3.2B.4B2A8B4.A8.2A2B5.3B3.7B.3B3.B.10B2.3B$11.3B3A3B7.A3.2A5.B
2A10BA2B2A5B4.2A6.6B4.B2AB4.4B7.A10B6.B2A$12.10B2.BA.A4.A5.2B2A10B3A
4B.B2A9.7BA4.2A5.3B7.A.AB.9B4.BA.A$12.9B.B.B2A5.A.AB.4B3A8B3A4B.BA.A
7.4B2.3BA8.2AB10.AB3.2B4.2A7.A$12.13B8.2AB.4B3A10B2A2B5.A6.4B4.3AB6.A
.AB15.4B2.A8.2A$11.6B2A2BA3B4.2A4.5B2A2BA10B2AB5.2A4.4B6.4B5.A20.2A3.
3A$10.9BABA3B5.A4.8B2A4B.2B3.BA2B9.4B8.4B3.2A20.A6.A$9.16B5.A.AB.8B2A
4B7.4B7.4B10.BABA25.3A$9.3B2.7BABA.A5.2AB.10B.B10.4B5.4B12.B2AB26.A$
7.2AB6.5BA4BA6.5BA5B14.4B3.2A2B9.A4.A3B$6.A.AB4.6BA2B.2B.A5.5B2A2B.B
11.A3.4B.2B2A8.3A5.4B$6.A7.2A4.2A3.2A8.8B7.A3.A.A3.5BAB8.A9.3BA$5.2A
8.A2.B2AB14.2B3AB7.A.A2.A.A4.5B9.2A9.ABAB$12.3A3.2A15.2B.6B5.A.A2B.A
4.B2A3B7.B2AB10.2A2B$12.A6.A14.BA2B4.2A6.A2.2A4.B3A6B2.B.2A13.4B$16.
3A15.A.A5.A8.3AB3.2BA2BA4B.BA2B.AB13.2BAB$16.A18.A7.3A9.A3.B2ABA4B3AB
3A15.2B2A$45.A7.2AB4.B2A2B4.B3.A17.2A2B$52.A2.A2.5B5.6A18.4B$52.A2BAB
.2A7.B2ABAB20.3BA$50.A.A.BA2B.A7.2AB24.3BA$50.2A5.2A9.B26.3AB!

[calcyman]

p17 gun: I was right about Jormungant's herschel factory:

One fewer column:

Code: Select all

x = 128, y = 109, rule = LifeHistory
33.A36.A$23.A7.3A26.A7.3A$22.A.A5.A28.A.A5.A$22.BA2B4.2A27.BA2B4.2A$
23.2B.6B28.2B.6B$24.6B20.A10.6B$23.8B17.3A9.8B18.2A$21.9B.B15.A10.9B.
B17.A$21.11B15.2A9.5B3A3B14.BA.A$19.2AB.10B.B10.4B7.2AB.2BA3BA3B.B11.
B2A$18.A.AB.3B2A9B7.3B8.A.AB.BA5BA6B7.3B$18.A4.2BA2BA3B2A3B.2B3.4B8.A
4.BA5BA6B.2B3.4B$17.2A4.3BABA3BABA11B5.2A.2A4.BA5BA15B5.2A$21.2AB.2BA
6BA4B2A5B5.A6.2AB.A3BA16B5.A$20.A.AB.6BAB2A2B2ABA6B.BA.A5.A.AB.B3A14B
3AB.BA.A$13.A6.A5.5B2A4BA6BA2B.B2A6.A5.16BA3BA.B2A$13.3A3.2A5.11BABA
3BABA3B4.2A.2A5.15BA5BAB4.2A$16.A8.4B3.2B.3B2A3BA2BA2B4.A8.4B3.2B.6BA
5BAB4.A$15.2A7.4B7.9B2A3B.BA.A7.4B7.6BA5BAB.BA.A$15.5B3.4B10.B.10B.B
2A7.4B10.B.3BA3BA2B.B2A13.A$17.3B2.4B14.11B8.4B14.3B3A5B5.A7.3A$7.2A
7.9B15.B.9B7.4B15.B.9B4.A.A5.A$7.A8.4BA3B17.8B8.4B17.8B6.BA2B4.2A$4.
2A.A.B3.6BA3B19.6B8.4B19.6B8.2B.6B$4.A2.3AB.2B2A3B3AB17.6B.2B6.4B18.
6B.2B8.B2A3B20.A$5.2A2.BA3B2A7B17.2A4.2BAB4.BA2B19.2A4.2BAB6.BAB2ABAB
17.3A$7.4A12B18.A5.A.A3.2A2B21.A5.A.A4.3BA3BAB.A15.A$7.A.2B3.7B.B2A
13.3A7.A3.2B2A19.3A7.A5.3BABABAB2A15.2A$2.2A4.3AB2.7B.BA.A12.A12.4B
20.A13.2AB.2B3A2B3A.B10.4B$2.A2.A5.A4.4B5.A24.4B14.A19.A.AB.9B3A2B7.
3A$3.8A5.4B5.2A22.4B15.3A7.A9.A4.10B2A2B.2B3.3BA$8.A8.4B27.4B19.A5.A.
A7.2A4.9BA12BA5.2A$3.2A.A11.4B25.4B19.2A4.2BAB11.2AB.8BA12B5.A$4.A.2A
11.4B23.4B20.6B.2B11.A.AB.8BA4BA8B.BA.A$4.A3.B11.2BAB21.4B23.B3A2B12.
A5.12BA8B.B2A$2.2A.5A11.2B2A19.4B3.2A18.8B10.2A5.A12BA9B4.2A$3.A.A2.
2A2.A9.2A2B17.4B5.A17.B.A4BA3B14.A3B3.2B.2B2A10B4.A$3.A.A3.B3A7.2B.4B
15.4B6.A.AB14.2B3A2BA3B13.B3A7.2B3A9B.BA.A$4.A3.2B8.10B13.A3B8.2AB11.
B.B2A7B.B2A10.4B10.B.3A2B3A2B.B2A$8.A.2A.A4.11B11.BABA11.3B7.3BA2BA3B
2A2B.BA.A8.4B14.2ABABABA3B$6.5A.2A3.13B9.2B2A12.2B2A3.2B.3BABA2BA2BA
2B4.A7.4B15.A.BA3BA3B$6.3A9.8BA4B7.4B7.2A5.3A9BA2BABA2BA2B4.2A5.4B17.
BAB2ABAB$7.B10.6BABA5B5.4B9.A5.BABA10B2AB3AB.B2A8.4B19.3B2AB$2A7.2B6.
8B2A6B3.4B10.A.AB.B4A12B4AB.BA.A6.4B18.6B.2B$.A5.5B4.9B.8B.4B12.2AB.B
3AB2A10BABAB5.A5.4B19.2A4.2BAB$.A.AB.3BA2B2.4B2A3B4.11B9.2A4.2BA2BABA
2BA9B3A5.2A3.4B13.2A2.A3.A5.A.A$2.2AB.2B3A6BA2BA2B5.9B11.A4.2BA2BA2BA
BA3B.2B3.2A2B8.4B13.A.A2.4A7.A$4.3B2AB2A6B2A2B2.2A3.7BA11.A.AB.2B2A3B
A2BA3B7.4B6.4B8.2A4.A$4.2B3AB3A8B4.A4.4BABAB11.2AB.7B2AB.B10.4B4.BA2B
4.2A.A2.A2.2A.6A$4.3B2AB2A11B2.A.AB2.2B2.2A2B12.3BA2B3A2B14.4B2.2A2B
4.A.A.2A.A.A.A.A2.A2.A$4.4B3A5B5.2A3.2AB2.3B2.4B11.3BA4BA.B15.6B2A5.A
6.A.ABABAB3.2A$5.4BA5B6.A6.3B.AB3.2BAB12.8B17.6B4.B2A6.A.AB2AB$5.11B
6.3A4.B3A5.2B2A12.2B3AB19.4B.2B.2B9.AB.2B$5.7B.4B7.A4.A9.2A2B10.2B.6B
15.12B4A.2A5.3B$6.5B3.4B9.3AB2A7.4B8.BA2B4.2A15.10B.BA2.A.A6.4B6.2A$
6.4B5.4B7.A4.A.A7.4B7.A.A5.A12.A.2AB.10B2.A2.A4.3B2AB6.A$7.B8.4B7.3A
3.A8.4B7.A7.3A7.3AB2AB3.3BABA2B3.2A5.3B2AB3.BA.A$17.B3A8.2A2.2A8.4B
16.A6.A4.B4.5B2A3B7.10B.B2A$18.A3B22.4B23.3A.2A3.5BA4B6.13B6.A$19.A3B
22.4B24.A.A5.9B5.A13B6.3A$20.4B10.2A10.BABA23.A.A7.B2A4B4.A14B2.A6.A$
21.4B9.A12.B2AB23.A8.B2A4B3.B3A2.8B4.3A3.2A$22.4B10.A11.A3B30.6B4.4B
5.6B7.A2.4B$9.2A5.2A5.4B5.5A12.4B29.6B3.4B4.8BA5.2A4.2B3.BA$9.A3.2A2.
A5.4B4.A18.3BA28.7B.4B5.2A4.B2AB4.9B.BA.A$11.A2.2A.A.AB.7B2.B3A16.ABA
B28.10B7.A5.ABAB5.5B2A3BA$10.3A3.A.2AB.7B3.2B.A16.2A2B26.10B5.3A7.4B
2.4B2A3BA.B$9.A6.A3.12B4A17.4B26.A2B2A3B6.A10.10B5AB$9.2A3.3A3.2BA4B
2A3BAB2.2A16.4B25.7B19.10B2A3B$7.4B2.A6.2B2A3B2A2B.B3A2.A16.4B24.A3BA
B8.A12.14B$2.AB3.2B4.2A5.BABA6B3.B.A.2A17.4B23.4BAB6.3A13.13B$.A.AB.
9B4.8B8.A21.4B22.BABA3B4.A16.2B3A4B.B.B2A$2.A10B5.9B7.2A22.3BA21.7B4.
2A15.BA3BA4B2.BA.A$3.B.4B2A4B2.4B2.3B33.3BA20.B3A4B.4B14.BA5BAB7.A$4.
5B2A9B3.5B32.3AB19.11B16.BABA4B8.2A$4.9BA5B7.2A33.4B18.12B16.7BA$4.8B
2A4B8.A22.A12.4B5.A11.12B14.A2BABA3B$4.8BA4B10.3A19.3A7.A3.BABA4.3A
10.11B14.3BABA2BA$2.2AB.B.4BA4B12.A22.A5.A.A3.B2AB6.A12.7B14.A7B$.A.A
B2.5BAB2AB34.2A4.2BAB4.A3B4.2A11.8B5.2A8.4BABAB$.A7.3BA2BA2B33.6B.2B
6.4B3.10B.2A8B6.A7.BA5BAB$2A8.3B2A3B14.A20.4BAB8.4B4.7B5A9B4.A.AB2.4B
A3BAB$9.8B15.3A17.4B4A8.4B2.7BA4BA4B4AB5.2AB.B.4B3A2B$10.9B16.A15.B.
3BA4BA7.4B.7BA2B3A2BAB2AB2AB.B4.13B$10.9B15.2A15.4BA6B8.11B2A2BA3B3A
3B2AB2A3.14B$12.8B14.4B10.B.6BA3B.2BA7.2BA9B2A3B2A4B2A2B2A3.3B2A10B$
11.3B2A3B8.2A7.3B7.B3A7B2AB.2A.A7.2B2AB2.2B2.B3.2BA2BA6B4.B5A10B$11.
2BA2BA3B7.A8.4B3.2B.5A9B4.A8.2A2B5.3B3.B4A2B.3B3.B.A3B2A4B2.3B$12.B2A
BA5B2.BA.A2.2A5.7B8A8B4.2A6.6B4.B2AB4.B2AB7.A3B2A5B6.B2A$12.4BA4B.B.B
2A4.A5.6B2A6B2A5B.B2A9.7BA4.2A5.3B7.A.AB.9B4.BA.A$12.4BA8B6.A.AB.6B3A
4B3A6B.BA.A7.4B2.3BA8.2AB10.AB3.2B4.2A7.A$11.4B2A8B7.2AB.5B2A6B2A6B5.
A6.4B4.3AB6.A.AB15.4B2.A8.2A$10.5BA9B3.2A4.8B8A7B5.2A4.3AB6.4B5.A20.
2A3.3A$9.9B2A5B4.A4.9B5A.2B3.4B9.3BA8.4B3.2A20.A6.A$9.3B2.4B2A4B.B3.A
.2A.B2A7B3AB7.4B7.3BA10.BABA25.3A$7.2AB6.10BA3.A2B.3BA6B.B10.3BA5.4B
12.B2AB26.A$6.A.AB4.9B.BA.A4.6BA4B14.ABAB3.4B9.A4.A3B$6.A7.2A4.2B3.BA
5.A4BA3B.B11.A3.2A2B.4B8.3A5.4B$5.2A8.A2.4B12.4A4B7.A3.A.A3.7B8.A9.3B
A$12.3A3.2A15.BA4B7.A.A2.A.A4.5B9.2A9.ABAB$12.A6.A14.2B.6B5.A.A2B.A4.
6B7.4B10.2A2B$16.3A14.BA2B4.2A6.A2.2B4.4B2A4B2.A.2A13.4B$16.A16.A.A5.
A8.4A3.4BA2BA2B.A3B.AB13.2BAB$34.A7.3A9.B3.3BABA4BA2B2AB15.2B2A$44.A
7.3A4.3BAB4.A3.A17.2A2B$51.A2.B2.5B5.4BAB18.4B$51.ABA2B.2A7.AB2ABA20.
3BA$49.A.A.ABAB.A7.BAB24.3BA$49.2A5.2A9.A26.3AB!

[Jormungant]

p17 gun: I was right about Jormungant's herschel factory:

Code: Select all

x = 129, y = 109, rule = LifeHistory
34.A36.A$24.A7.3A26.A7.3A$23.A.A5.A28.A.A5.A$23.BA2B4.2A27.BA2B4.2A$
24.2B.6B28.2B.6B$25.6B20.A10.6B$24.B3A4B17.3A9.8B18.2A$22.2ABA5B.B15.
A10.9B.B17.A$22.2B2AB3A3B15.2A9.11B14.BA.A$20.A2B.10B.B10.4B7.2AB.2B
2A6B.B11.B2A$19.A.2A.4B2A5BA2B7.3B8.A.AB.2B2A10B7.3B$19.A4.10BABAB.2B
3.4B8.A4.14B.2B3.4B$18.2A4.9BA2BA10B5.2A.2A4.5B2AB2A13B5.2A$22.2AB.6B
2AB2A2BA7B5.A6.2AB.3BA2BABA5BA6B5.A$21.A.AB.7BABA2BABA7B.BA.A5.A.AB.
3BA2B2A6B2A2BA3B.BA.A$14.A6.A5.7BA2B2AB2A6B.B2A6.A5.6BA5BABA2BA3B.B2A
$14.3A3.2A5.10BA2BA9B4.2A.2A5.13B2AB2A5B4.2A$17.A8.4B3.2B.BABA10B4.A
8.4B3.2B.14B4.A$16.2A7.BA2B7.2BA5B2A4B.2A.A7.4B7.10B2A2B.BA.A$16.5B3.
2A2B10.B.10B.2BA7.4B10.B.6B2A2B.B2A13.A$18.3B2.2B2A14.3B3AB2A2B8.4B
14.11B5.A7.3A$8.2A7.9B15.B.5BAB2A7.A3B15.B.9B4.A.A5.A$8.A8.8B17.4B3AB
8.BABA17.8B6.BA2B4.2A$5.2A.A.B3.10B19.6B8.2B2A19.6B8.2B.6B$5.A2.3AB.
3BA7B17.6B.2B6.4B18.6B.2B8.6B20.A$6.2A2.BA3B2A7B17.2A4.2BAB4.4B19.2A
4.2BAB6.8B17.3A$8.AB2A12B18.A5.A.A3.4B21.A5.A.A4.9B.B15.A$8.A.2B3.7B.
B2A13.3A7.A3.4B19.3A7.A5.6BA4B15.2A$3.2A4.3AB2.7B.BA.A12.A12.4B20.A
13.2AB.3B3A4B.B10.4B$3.A2.A5.A4.4B5.A24.4B14.A19.A.AB.2B2AB2A7B7.3B$
4.8A5.3BA5.2A22.4B15.3A7.A9.A4.B3AB3A6B.2B3.4B$9.A8.ABAB27.4B19.A5.A.
A7.2A4.2B2AB2A16B5.2A$4.2A.A11.2A2B25.4B19.2A4.2BAB11.2AB.B3A17B5.A$
5.A.2A11.4B23.4B20.6B.2B11.A.AB.2BA16BA2B.BA.A$5.A3.B11.4B21.ABAB23.
6B12.A5.17B3AB.B2A$3.2A.3ABA11.4B19.B2AB3.2A18.8B10.2A5.16B2AB2A2B4.
2A$4.A.A2.2B2.A9.4B17.3BA5.A17.B.9B14.4B3.2B.6B3AB3AB4.A$4.A.A3.4A7.
2B.4B15.4B6.A.AB14.11B13.4B7.7B2AB2A2B.BA.A$5.A3.BA8.10B13.4B8.2AB11.
B.10B.B2A10.4B10.B.4B3A3B.B2A$9.A.2A.A4.BABA7B11.4B11.3B7.9B2A3B.BA.A
8.4B14.4BA6B$7.A3BA.2A3.2B4A7B9.4B12.4B3.2B.3B2A3BA2BA2B4.A7.4B15.B.
9B$7.A2B9.BA2B2A7B7.4B7.2A5.11BABA3BABA3B4.2A5.4B17.8B$8.A10.5B2A7B5.
4B9.A5.5B2A4BA6BA2B.B2A8.4B19.6B$.2A7.2B6.3B2A8BABA3.4B10.A.AB.6BAB2A
2B2ABA6B.BA.A6.4B18.6B.2B$2.A5.5B4.4B3A2B.5B2AB.4B12.2AB.2BA6BA4B2A5B
5.A5.A3B19.2A4.2BAB$2.A.AB.6B2.5BABAB4.4BA6B9.2A4.3BABA3BABA11B5.2A3.
BABA13.2A2.A3.A5.A.A$3.2AB.13B2A2B5.9B11.A4.2BA2BA3B2A3B.2B3.4B8.2B2A
13.A.A2.4A7.A$5.18B2.2A3.7BA11.A.AB.3B2A9B7.4B6.4B8.2A4.A$5.B2A3B2A9B
4.A4.4BABAB11.2AB.10B.B10.4B4.4B4.2A.A2.A2.2A.6A$5.B2A3BABA10B2.A.AB
2.2B2.2A2B12.11B14.4B2.4B4.A.A.2A.A.A.A.A2.A2.A$5.6BA5B5.2A3.2AB2.3B
2.4B11.9B.B15.8B5.A6.A.ABABAB3.2A$6.10B6.A6.3B.AB3.4B12.8B17.3BA2B4.B
2A6.A.AB2AB$6.11B6.3A4.B3A5.4B12.6B19.3BA.2B.2B9.AB.2B$6.7B.4B7.A4.A
9.4B10.2B.6B15.3B3A6B4A.2A5.3B$7.5B3.4B9.3AB2A7.4B8.BA2B4.2A15.10B.BA
2.A.A6.4B6.2A$7.4B5.4B7.A4.A.A7.3BA7.A.A5.A12.A.2AB.10B2.A2.A4.3BA2B
6.A$8.B8.4B7.3A3.A8.3BA7.A7.3A7.3AB2AB3.8B3.2A5.2B3AB3.BA.A$18.4B8.2A
2.2A8.3AB16.A6.A4.B4.10B7.3B5A2B.B2A$19.4B22.4B23.3A.2A3.10B6.3B2A3B
2A3B6.A$20.4B22.4B24.A.A5.9B5.3B3A3B3A2B6.3A$21.4B10.2A10.BABA23.A.A
7.7B4.5B2A3B2A3B2.A6.A$22.2B2A9.A12.B2AB23.A8.7B3.4B2.B5A2B4.3A3.2A$
23.2A2B10.A11.A3B30.6B4.4B5.3A3B7.A2.4B$17.2A5.BA2B5.5A12.4B29.B2ABAB
3.4B4.B3A5B5.2A4.2B3.BA$18.A5.4B4.A18.4B28.BA2BA2B.4B5.2A4.4B4.9B.BA.
A$18.A.AB.7B2.B3A16.4B28.B3A6B7.A5.4B5.10BA$12.A6.2AB.7B3.2B.A16.4B
26.10B5.3A7.4B2.10B.B$10.3A8.12B4A17.4B26.8B6.A10.11B2A3B$9.A6.A4.7B
2A3BAB2.2A16.2BAB25.7B19.B3A6B2AB2A$9.2A3.3A4.7B2A2B.B3A2.A16.2B2A24.
6B8.A12.A4BA5BA2B$7.B2AB2.A7.10B3.B.A.2A17.2A2B23.6B6.3A13.A3BA8B$2.
2A3.2A4.2A5.8B8.A21.4B22.7B4.A16.5BA3B.B.B2A$.A.2B.2BA6B4.9B7.2A22.3B
A21.7B4.2A15.2BA3BA3B2.BA.A$2.A4BA5B5.3AB2.3B33.3BA20.8B.4B14.4B2ABAB
7.A$3.A.ABA7B2.3BA3.5B32.3AB19.8B3A16.6BAB8.2A$4.15BA7.2A33.4B18.5BA
4BAB16.8B$4.3BABA9B8.A22.A12.4B5.A11.5BA5BA14.9B$4.3BA2B2A6B10.3A19.
3A7.A3.4B4.3A10.10BA14.9B$4.13B13.A22.A5.A.A3.4B6.A12.B2A4B14.8B$2.2A
B.B.9B35.2A4.2BAB4.4B4.2A11.A3BA3B5.2A8.BA6B$.A.AB2.10B35.6B.2B6.4B3.
10B.2BAB2A2BAB6.A7.BAB2A4B$.A7.3B3A3B15.A20.B3A2B8.3BA4.11BA3BA5B4.A.
AB2.3BA3BA2B$2A8.BA2BA3B15.3A17.8B8.ABAB2.14BABA5B5.2AB.B.3BA5B$9.BA
2B2A2B19.A15.B.2B2A5B7.2A2B.14B3A6B.B4.8BA3BA$10.B2A6B16.2A15.5BA5B8.
28B2A3.2BA5BA4BA$10.6B2AB16.4B10.B.10B.B2A7.2BA24B2A3.2AB2A6B3AB$12.
2B2A2BAB17.3B7.4B2A8B.BA.A7.2B2AB2.2B2.B3.12B4.3B2A11B$11.3BA2BAB8.2A
8.2BAB3.2B.4B2A8B4.A8.2A2B5.3B3.7B.3B3.B.10B2.3B$11.3B3A3B7.A3.2A5.B
2A10BA2B2A5B4.2A6.6B4.B2AB4.4B7.A10B6.B2A$12.10B2.BA.A4.A5.2B2A10B3A
4B.B2A9.7BA4.2A5.3B7.A.AB.9B4.BA.A$12.9B.B.B2A5.A.AB.4B3A8B3A4B.BA.A
7.4B2.3BA8.2AB10.AB3.2B4.2A7.A$12.13B8.2AB.4B3A10B2A2B5.A6.4B4.3AB6.A
.AB15.4B2.A8.2A$11.6B2A2BA3B4.2A4.5B2A2BA10B2AB5.2A4.4B6.4B5.A20.2A3.
3A$10.9BABA3B5.A4.8B2A4B.2B3.BA2B9.4B8.4B3.2A20.A6.A$9.16B5.A.AB.8B2A
4B7.4B7.4B10.BABA25.3A$9.3B2.7BABA.A5.2AB.10B.B10.4B5.4B12.B2AB26.A$
7.2AB6.5BA4BA6.5BA5B14.4B3.2A2B9.A4.A3B$6.A.AB4.6BA2B.2B.A5.5B2A2B.B
11.A3.4B.2B2A8.3A5.4B$6.A7.2A4.2A3.2A8.8B7.A3.A.A3.5BAB8.A9.3BA$5.2A
8.A2.B2AB14.2B3AB7.A.A2.A.A4.5B9.2A9.ABAB$12.3A3.2A15.2B.6B5.A.A2B.A
4.B2A3B7.B2AB10.2A2B$12.A6.A14.BA2B4.2A6.A2.2A4.B3A6B2.B.2A13.4B$16.
3A15.A.A5.A8.3AB3.2BA2BA4B.BA2B.AB13.2BAB$16.A18.A7.3A9.A3.B2ABA4B3AB
3A15.2B2A$45.A7.2AB4.B2A2B4.B3.A17.2A2B$52.A2.A2.5B5.6A18.4B$52.A2BAB
.2A7.B2ABAB20.3BA$50.A.A.BA2B.A7.2AB24.3BA$50.2A5.2A9.B26.3AB!

Very nice! Lol I was about to post the exact same modifications calcyman, I also noted that one can put the p51 closer to the snark in one orientation, so one can remove an additional column here. Well, with a slight difference that does not decrease the bounding box though:

Code: Select all

x = 140, y = 128, rule = LifeHistory
6$41.A36.A$31.A7.3A26.A7.3A$30.A.A5.A28.A.A5.A$30.BA2B4.2A27.BA2B4.2A
$31.2B.6B28.2B.6B$32.6B20.A10.3BA2B$31.8B17.3A9.3B3A2B18.2A$29.9B.B
15.A10.4BABABA.B17.A$29.11B15.2A9.3B3A2BA2B14.BA.A$27.2AB.10B.B10.4B
7.2AB.3BA3B2AB.B11.B2A$26.A.AB.3B2A4BABA2B7.3B8.A.AB.3B2A4BA4B7.3B$
26.A4.2BA2B2ABA2BA2B.2B3.4B8.A4.3BABA2B3A3B.2B3.BA2B$25.2A4.3BA12B2A
5B5.2A.2A4.3B2A4BA10B2AB5.2A$29.2AB.2BA4BA8BA4B5.A6.2AB.B2A2B2A10BA2B
A5.A$28.A.AB.22B.BA.A5.A.AB.4BA12BA4B.BA.A$21.A6.A5.4BA8BA4BA2B.B2A6.
A5.A2BA10B2A2B2AB.B2A$21.3A3.2A5.5B2A12BA3B4.2A.2A5.B2A10BA4B2A3B4.2A
$24.A8.4B3.2B.2BA2BAB2A2BA2B4.A8.2BAB3.2B.3B3A2BABA3B4.A$23.2A7.4B7.
2BABA4B2A3B.BA.A7.4B7.4BA4B2A3B.BA.A$23.5B3.4B10.B.10B.B2A7.4B10.B.B
2A3BA3B.B2A$25.3B2.4B14.11B8.4B14.2BA2B3A3B$15.2A7.9B15.B.9B7.4B15.B.
ABABA4B13.A$15.A8.8B17.8B8.4B17.2B3A3B5.A7.3A$12.2A.A.B3.10B19.6B8.4B
19.2BA3B5.A.A5.A$12.A2.3AB.2B2A2BABA2B17.6B.2B6.4B18.6B.2B4.BA2B4.2A$
13.2A2.BA3B2A2B2A3B17.2A4.2BAB4.4B19.2A4.2BAB4.2B.6B$15.4A8BA3B18.A5.
A.A3.A3B21.A5.A.A5.3B3A20.A$15.A.2B3.7B.B2A13.3A7.A3.A3B19.3A7.A5.2B
2A2BAB17.3A$10.2A4.3AB2.7B.BA.A12.A12.B3A20.A13.4BA2B2A.B15.A$10.A2.A
5.A4.4B5.A24.4B14.A20.4B3A4B15.2A$11.8A5.4B5.2A22.4B15.3A7.A8.2AB.8BA
B.B10.4B$16.A8.4B27.4B19.A5.A.A6.A.AB.7B3A4B7.A2B$11.2A.A11.4B25.4B
19.2A4.2BAB6.A4.6BABABA3B.2B3.B2AB$12.A.2A11.4B23.4B20.6B.2B6.2A4.6BA
3B2A8BABA5.2A$12.A3.A11.4B21.4B23.B2A3B11.2AB.5BABA13B5.A$10.2A.2A3B
11.3BA19.4B3.2A18.2BABA3B9.A.AB.22B.BA.A$11.A.A2.2A2.A9.3BA17.4B5.A
17.B.BABA5B7.A5.13BABA5B.B2A$11.A.A3.4A7.2B.3AB15.4B6.A.AB14.4B2A5B6.
2A5.ABA8B2A3BA6B4.2A$12.A3.AB8.10B13.4B8.2AB11.B.10B.B2A10.B2AB3.2B.
3BABABA6B4.A$16.B.2A.A4.11B11.BA2B11.3B7.4B2A8B.BA.A8.3BA7.4B3A7B.BA.
A$14.BAB2A.2A3.13B9.2A2B12.2B2A3.2B.3BA2B2A6B4.A7.4B10.B.BA8B.B2A$14.
2AB9.13B7.2B2A7.2A5.2A10B3ABA6B4.2A5.4B14.4B3A4B$15.B10.8BA5B5.4B9.A
5.2BA10B2A6B.B2A8.4B15.B.2A2BA4B$8.2A7.2A6.10B2A4B3.4B10.A.AB.22B.BA.
A6.4B17.BA2B2A2B$9.A5.A3BA4.9B.2A6B.4B12.2AB.6B2A10BA2B5.A5.4B13.C5.
3A3B$9.A.2A.BA3BA2.4B2A3B4.11B9.2A4.6BAB3A10B2A5.2A3.4B13.C.C2.6B.2B$
10.A2B.A5B2A3BA2BA2B5.9B11.A4.6B2A2BA3B.2B3.2A2B8.4B13.A.2C2.2C4.2BAB
$12.5BA4BA3B2A2B2.2A3.8B11.A.AB.8B2A4B7.4B6.4B8.2A4.A6.C5.A.A$12.4BAB
A3BA6B4.A4.6BAB11.2AB.10B.B10.4B4.4B4.2A.A2.A2.2A.3A3C7.A$12.A4BA4BA
8B2.A.AB2.2B2.2B2A12.5B2A4B14.4B2.A3B4.A.A.2A.A.A.A.A2.C$12.B2A5B2A2B
5.2A3.2AB2.3B2.2A2B11.5BABAB.B15.4BA3B5.A6.A.ABABAB$13.2BA3BA3B6.A6.
3B.AB3.4B12.3BABA2B17.3B3A4.B2A6.A.AB2AB$13.2BA3BA4B6.3A4.B3A5.3BA12.
3B2AB19.4B.2B.2B9.AB.2B$13.3B3AB.4B7.A4.A9.3BA10.2B.6B15.12B4A.2A5.3B
$14.5B3.4B9.3AB2A7.3AB8.BA2B4.2A15.10B.BA2.A.A6.4B6.2A$14.4B5.3BA7.A
4.A.A7.4B7.A.A5.A12.A.2AB.7BA2B2.A2.A4.3B2AB6.A$15.B8.B2AB7.3A3.A8.4B
7.A7.3A7.3AB2AB3.4B2A2B3.2A5.3B2AB3.BA.A$25.ABAB8.2A2.2A8.4B16.A6.A4.
B4.4B2ABA2B7.10B.B2A$26.4B22.4B23.3A.2A3.4B2A4B6.13B6.A$27.4B22.4B24.
A.A5.9B5.14B6.3A$19.4B5.4B10.2A10.4B23.A.A7.7B4.15B2.A6.A$20.B8.4B9.A
12.3BA23.A8.B2A4B3.ABAB2.8B4.3A3.2A$30.4B10.A11.ABAB30.6B4.B2AB5.4B2A
7.A2.4B$17.2C5.2C5.4B5.5A12.2A2B29.6B3.3BA4.6BABA5.2A4.2B3.BA$17.C3.
2C2.C5.4B4.A18.4B28.7B.4B5.2A4.A3B4.9B.BA.A$19.C2.2C.C.CB.7B2.B3A16.
2BAB28.10B7.A5.4B5.10BA$18.3C3.C.2CB.7B3.2B.A16.2B2A26.10B5.3A7.4B2.
4B2A4B.B$17.C6.C3.3B2A7B4A17.2A2B26.8B6.A10.9B2A5B$17.2C3.3C3.2BABA2B
2A3BAB2.2A16.4B25.7B19.5BA9B$15.4B2.C6.4BA2B2A2B.B3A2.A16.4B24.6B8.A
12.4BA9B$10.AB3.2B4.2C5.10B3.B.A.2A17.4B23.2BABAB6.3A13.3B2A8B$9.A.AB
.9B4.8B8.A21.4B22.BA2BA2B4.A16.9B.B.B2A$10.A10B5.9B7.2A22.4B21.BA2BA
2B4.2A15.A2BABA4B2.BA.A$11.B.6BA3B2.4B2.3B33.4B20.A3BA3B.4B14.3B3A3B
7.A$12.6BABA7B3.5B32.BABA19.BABA7B16.A3B2A2B8.2A$12.6BA2BA5B7.2A33.B
2AB18.2BA9B16.A7B$12.7B2A5B8.A22.A12.A3B5.A11.12B14.9B$12.13B10.3A19.
3A7.A3.4B4.3A10.11B14.9B$10.2AB.B.9B12.A22.A5.A.A3.3BA6.A12.7B14.7BA$
9.A.AB2.7B2AB34.2A4.2BAB4.ABAB4.2A11.8B5.2A8.2B2A3BA$9.A7.2B2A2BA2B
33.6B.2B6.2A2B3.10B.10B6.A7.3B3A3B$8.2A8.BA2BA3B14.A20.6B8.4B4.6B3A4B
A7B4.A.AB2.4BABA2BA$17.3B3A2B15.3A17.8B8.4B2.5B6AB2A3BA4B5.2AB.B.9B$
18.9B16.A15.B.9B7.4B.4B2A4BA2BA3BA5B.B4.8B2A3B$18.9B15.2A15.11B8.9B2A
3B2A2BA3BA5B2A3.9BA4B$20.2B3A3B14.4B10.B.6B2A2B.B2A7.9BA8BA2BA5B2A3.
9BA5B$19.3BA2BAB8.2A7.3B7.10B2A2B.BA.A7.3BAB2.2B2.B3.5BA6B4.5B2A9B$
19.2BA2B2A2B7.A8.4B3.2A.5B2A7B4.A8.3BA5.3B3.3B2ABA.3B3.B.4B2A4B2.3B$
20.B2A7B2.BA.A2.2A5.4B4A5BA3BA5B4.2A6.2B3AB4.ABAB4.3BA7.A10B6.B2A$20.
9B.B.B2A4.A5.8BA3B2A3BA3B.B2A9.8B4.2A5.3B7.A.AB.9B4.BA.A$20.13B6.A.AB
.3BA3BA6BA3BA3B.BA.A7.A3B2.4B8.2AB10.AB3.2B4.2A7.A$19.5B2A7B7.2AB.3BA
3B2A3BA8B5.A6.B2AB4.BABA6.A.AB15.4B2.A8.2A$18.5BA2BA6B3.2A4.5BA3BA5B
4A4B5.2A4.BABA6.B2AB5.A20.2A3.3A$17.7BABA6B4.A4.7B2A5B.2A3.4B9.4B8.A
3B3.2A20.A6.A$17.3B2.3BA6B.B3.A.AB.2B2A10B7.4B7.4B10.4B25.3A$15.2AB6.
10BA3.2AB.2B2A6B.B10.4B5.4B12.3BA26.A$14.A.AB4.9B.BA.A4.11B14.2BAB3.
4B9.A4.ABAB$14.A7.2A4.2B3.BA5.9B.B11.A3.2B2A.4B8.3A5.2A2B$13.2A8.A2.
4B12.8B7.A3.A.A3.2A5B8.A9.4B$20.3A3.2A15.6B7.A.A2.A.A4.5B9.BA9.2BAB$
20.A6.A14.2B.6B5.A.3A.A4.6B7.A2BA10.2B2A$24.3A14.BA2B4.2A6.A2.2A4.4B
2A4B2.B.AB13.2A2B$24.A16.A.A5.A8.3AB3.4BA2BA2B.B3A.BA13.4B$42.A7.3A9.
B3.3BABA4B4ABA15.3BA$52.A7.3A4.3BAB4.B3.B17.3BA$59.A2.A2.5B5.A2BABA
18.3AB$59.5A.2A7.4BAB20.4B$57.A.A.2B2A.A7.3A24.4B$57.2A5.BA9.B26.BABA
$103.B2AB$104.A3B$105.4B$106.3BA$107.ABA$108.2A!

I was investigating an alternative approach to get the stream but I did not manage to make it smaller, and I would probably need a more clever way to make the first 2 gliders is that offset:

Code: Select all

x = 223, y = 200, rule = LifeHistory
17$186.A$184.3A$183.A6.A$183.2A3.3A$181.4B2.A8.2A$176.AB3.2B4.2A7.A$
175.A.AB.9B4.BA.A$176.A10B6.B2A$177.B.4B2A4B2.3B$178.5B2A9B$178.15B$
178.9B2A3B$178.8B2A3B$176.2AB.B.5BA3B$175.A.AB2.6B2A2B$175.A7.2BA2BA
3B$174.2A8.2BABA3B$183.8B$184.9B$184.9B$186.8B$185.3BABA2B8.2A$185.3B
A2BA2B7.A$186.2B2A6B2.BA.A$186.3BA5B.B.B2A$186.3B2A8B$185.3B2A9B$184.
15B3.B$183.9B2A5B$182.4B2.4B2A4B.B$181.4B5.10BA$180.BA2B4.9B.BA.A$
179.2A2B5.2A4.2B3.BA$178.2B2A7.A2.4B$173.B3.4B5.3A3.2A$173.2B.4B6.A6.
A$172.7B11.3A9.B$173.5B12.A$173.5B$172.7B$168.B2.4B$168.6B$168.5B$56.
2B107.2A.4B15.2B$57.B103.2A.A8B13.3B$161.2A.A4BA4B6.A4.4B$164.A.2BA2.
B6.3A3.4B$42.2A120.A.AB9.A5.4B$42.A.A120.2AB9.2A3.4B$44.A4.2A115.3B5.
5B2.A3B$40.4A.2A2.A2.A112.4B3.BA3B4.ABA$40.A2.A.A.A.A.2A111.B2A4B2A5B
3.2A$42.BABABA.A115.2A2.10B$41.2BA3BA.A119.2BABA4B$41.5B.BA122.B2A3B$
42.BABA125.6B$34.2A6.5B123.2B.4B5.B$26.A8.A6.ABABAB121.3B.5B3.2B$16.A
7.3A8.A.AB3.5A2B90.A28.10BD.D2B$15.A.A5.A12.2AB.2ABA4B2A48.A38.3A27.
8B.2B2D3B$15.BA2B4.2A13.3B2A2BA4BA47.3A7.A27.A10.A14.2B2.8B3.5B$16.2B
.BA4B13.4BABA7B49.A5.A.A26.2A7.3A2.A13.9B4.6B$17.3BA2B15.4B2A5B2A2B
47.2A4.2BAB22.2B10.A3.3A13.4BABAB4.7B$16.5BA2B16.2B5AB2.4B46.6B.2B20.
B.2B2A10.3A15.A3B.2AB$14.5B2A2B.B15.4BAB5.4B26.A20.6B19.6B2AB5.2A4.A.
2A11.A3B3.A$14.5B2A4B14.9B4.4B25.3A17.8B17.5B2.3B4.A2B4.A.A2.A9.3A$
12.2AB.10B.B10.4B4.2A5.4B27.A15.B.9B16.3B2.B2.2B4.2BAB.3B2.2A$11.A.AB
.8B2A4B7.4B5.A7.4B25.2A15.2B.8B17.5B2AB6.B.2ABA38.2A$11.A4.7BA2BA3B.
2B3.2A2B7.3A5.4B24.4B10.B.6B2A2B.B2A15.6B2A6.2A.A16.2B21.2A2B$10.2A4.
5B2A2BA9BABAB5.3A2.A6.4B25.3B7.10B2AB2.BA.A15.4BA2B7.A.A15.4B21.BA2B$
14.2AB.7BA11BAB5.A2.A9.4B24.4B3.2B.4BA4B.B7.A16.7B5.A2.2A9.2B2.4B23.
4B$13.A.AB.6BA8BA6B.BA.A2.2A3.B5.3BA17.2A5.12BA3BAB9.2A14.8B5.2A14.5B
25.4B$13.A5.BA11BA7B.B2A4.A3.B6.3BA17.A6.2B.10B4AB4.2A17.4B.3B18.8B
27.4B$12.2A5.BABA9BA2B2A5B4.A4.2B7.3AB16.A.A5.A2B3AB2.B3A2BA5.A.A15.
4B22.8B29.4B$18.2B2A3.2B.3BA2BA7B4.2A4.B8.4B16.2A4.B4A10B.2B6.A15.3B
22.4BA3B31.3B$18.3B7.4B2A8B.BA.A2.A12.4B11.2A9.BA3BA12B5.2A15.B5.6B2.
A8.4BA3B33.B$16.4B10.B.10B.B2A2.2A13.3B12.A7.B.4BA4B.2B3.4B10.A15.3B
2ABA3BA6.4B.3A$16.2A15.4B2A5B20.2B12.A.AB2.B2A10B7.4B7.3A15.3BA7BA4.B
A2B$17.A15.B.2B2A5B21.B2.B10.2AB.2B2A6B.B10.4B5.A18.2B.A6BA4.2A2B$14.
3A17.2BA5B25.3B11.8B.2B14.4B4.2A15.2AB.8BA5.2A$14.A20.2BA3B26.4B10.9B
.B15.BABA9.3A7.A.AB2.6B2A54.3A$33.4BAB.2B26.4B11.8B17.B2A.B6.3BA7.A7.
A4BA5.2B47.A3B$33.2A4.2BAB26.4B11.6B18.BA5B3.3BA7.2A7.A2BA6.4B47.A3B$
34.A5.A.A27.4B9.2B.6B14.15B19.A2.2B2.4B49.4B$31.3A7.A29.2BAB7.BA2B4.
2A14.14B22.8B51.4B$31.A40.2B2A6.A.A5.A15.5B.7B22.8B53.4B$73.2A8.A7.3A
10.2AB.2B.B.5B18.3B.8B55.4B$93.A9.A.AB3.B2A3B19.9BA2B57.3B$103.A6.B2A
3B18.8B2A2B$102.2A6.4B19.4BA3B2.2A$111.3B18.4B.ABA$80.2B30.2B.BA14.4B
2.2A$79.4B28.B2ABA.A12.ABAB$80.4B26.BABABA.A12.2AB$81.4B23.A2.A.A.A.A
.2A10.A4.2B$82.4B22.4A.2A2.A2.A14.4B$83.4B25.A4.2A11.2B2.4B$84.3BA22.
A.A16.8B$85.ABA22.2A16.8B$86.2A35.3B.8B$122.8BA3B$121.8B.ABA$120.4BAB
AB2.2A$119.4B.2AB$93.2B23.A3B3.A$92.4B21.A3B$93.4B20.3A$94.4B25.2B$
95.4B23.4B$96.4B17.2B2.4B$97.BABA15.8B$98.B2A14.8B$99.A10.3B.8B$109.
8BABAB$108.4BA3B.2AB$107.4BA3B3.A$106.4B.3A$105.BA2BD$104.2A2BDB$105.
2AB3D$95.2A9.7B$94.B2AB7.8B$95.2B7.4B2.2B3.B$94.2B7.A3B3.3B.B2A$93.BA
2B.B3.BABA5.A3B2A$93.A.A2B.B.2B2A5.A.AB.B$94.A.4BD3B5.A.AB$91.3A4.2BC
BD6.A$91.A6.2A2D6.2A$97.2B2A2B$96.7B$95.A3B2.2B$94.A3B$94.3A3$108.2A$
107.2A2B40.A$108.BA2B29.A7.3A$109.4B27.A.A5.A$110.4B26.BA2B4.2A$111.
4B26.2B.BA4B$112.4B26.3BA2B20.A$113.3B25.5BA2B17.3A$114.B2.B21.5B2A2B
.B15.A$117.2B20.5B2A4B15.2A$117.3B13.2A2.2AB.10B.B10.4B$117.4B12.A2.A
.AB.8B2A4B7.3B$118.4B8.B4.2A4.7BA2BA3B.2B3.2A2B$119.B3A7.2B4.A4.5B2A
2BA9BABAB5.2A$120.A3B6.B3.A4.2AB.7BA11BAB5.A$121.A3B5.B3.2A2.A.AB.6BA
8BA6B.BA.A$122.4B9.A2.A5.BA11BA7B.B2A$123.4B6.A2.3A5.BABA9BA2B2A5B4.
2A$124.4B5.3A7.2B2A3.2B.3BA2BA7B4.A$125.4B7.A5.4B7.4B2A8B.BA.A$126.4B
5.2A4.4B10.B.10B.B2A$127.4B4.9B14.4B2A5B$128.4B5.BA4B15.B.2B2A5B$129.
4B2.B5A2B16.2BA5B$130.2B2A5B2A4B15.2BA3B$131.7BABA4B13.4BAB.2B$132.A
4BA2B2A3B13.2A4.2BAB$133.2A4BAB2A.B2A12.A5.A.A$134.2B5A3.BA.A8.3A7.A$
135.BABABA6.A8.A$136.5B6.2A$137.ABAB$134.AB.5B$133.A.A3BA2B$133.A.ABA
BAB$130.2A.A.A.A.A2.A$130.A2.A2.2A.4A$132.2A4.A$138.A.A$139.2A3$125.B
$125.2B!

[nokangaroo]

@Jormungant: Something like this for p17:

Code: Select all

x = 129, y = 133, rule = LifeHistory
16.A$16.3A$12.A6.A$12.3A3.2A$5.2A8.A2.4B$6.A7.2A4.2B3.BA$6.A.AB4.9B.B
A.A$7.2AB6.5BA4BA$9.2BA2.5B2AB2A.B$9.B2A7B2AB2AB$10.ABA12B45.A$11.9B
2A3B35.A7.3A$12.9BA3B34.A.A5.A$12.8BA.A.2BA32.A2BA4.2A$12.7B2AB2.2A.A
32.2B.6B$11.4BA4B7.A33.BA4B20.A$11.4BAB2A8.3A6.A23.8B17.3A$12.3BABA2B
10.A5.3A19.BAB2AB2AB.B15.A$10.9B6.4A2.A7.A18.3A8B15.2A$10.9B6.A3.2A.A
5.2A16.3A.4BA5B.B10.4B$9.2BABA3B9.2A3.A6.6B11.A.AB.5BA5BA2B7.3B$2A8.
2ABA4B10.3A9.3A4B8.A4.5BA4BABAB.2B3.4B$.A7.4BA4B6.3A.A4.2A3.BA3BA5B5.
2A4.9BA2BA10B5.2A$.A.2A2.B2A7B6.A2.A.A4.2AB.BA5BA5B8.2AB.7BABA11B5.A$
2.A2B.A.A8B6.2A2.B2A.B3A2.A3BA3BA3B8.A.AB.7B3A2B3A7B.BA.A$4.3BA9B11.
2A2B.A2.BA2BABA2BA3B8.A5.11BABA7B.B2A$4.3B2A9B12.A.2A2.BA3BA3BA2B8.2A
5.10BA2BA9B4.2A$4.12BABA11.A.A4.BA5BA2B4.A10.4B3.2B.BABA4BA5B4.A$4.B
2AB2A7B2AB9.2A2.A5.A3BA2B5.3A7.A3B7.2BA5BA5B.BA.A$3.B.2AB2A5B2.A3B11.
2A5.B3A4B7.A5.BABA10.B.5BA4B.3A$2.A4BA5B5.4B16.10B5.2A4.2B2A14.8B3A$.
A.AB.9B4.4B15.6B.4B4.9B15.B.B2AB2ABAB$2.AB3.2B4.2A5.4B13.6B3.4B5.6B
17.8B$7.4B2.A7.4B8.B2.3BA3B4.3BA2.8B18.4BAB$9.2A3.3A5.4B5.7BABA2B5.B
2A12B14.6B.2B$9.A6.A6.4B4.7BABA2B6.ABA11B14.2A4.A2BA$10.3A11.4B2.9BA
3B7.13B15.A5.A.A$12.A12.4B.11B.B2A6.10B.B2A10.3A7.A$26.4B.9B2.BA.A7.
3B2AB3.BA.A9.A$27.3BA7B7.A7.3B2AB6.A37.A$28.3BA6B7.2A8.4B6.2A26.A7.3A
$29.3A3BAB18.3B34.A.A5.A$30.6B2A14.AB.2B35.BA2B4.2A$31.4B2A2B12.A.AB
2AB35.2B.6B$32.8B11.A.ABABAB2.2A31.2ABA2B20.A$33.8B7.2A.A.A.A.A2.A.A
6.A23.A4BA2B17.3A$34.8B6.A2.A2.2A.4A8.3A19.BA5BAB.B15.A$35.8B7.2A4.A
4.A10.A18.2B3A4BAB15.2A$36.8B12.A.A2.3A7.2A16.2AB.B3AB2A3B.B10.4B$37.
8B12.4A3.A6.6B11.A.AB.3B3A8B7.BAB$38.8B15.3A9.7B8.A4.3BA6B3AB.2B3.4B$
39.8B10.3A.A4.2A3.3BA7B5.2A4.9BAB2A10B5.2A$40.2BA5B8.A2.A.A4.2AB.3B3A
7B8.2AB.7B2A12B5.A$41.2B2A4B7.2A2.B2A.B3A2.2B5A5B8.A.AB.22B.BA.A$42.
2A5BA11.2A2B.A2.2B2A3B2A4B8.A5.12B2A7B.B2A$43.4BABAB12.A.2A2.3B5A4B8.
2A5.10B2ABA9B4.2A$44.4B2A2B11.A.A4.3B3A4B4.A10.BA2B3.2B.B3A6BA3B4.A$
45.8B9.2A2.A5.2BA4B5.3A7.2A2B7.8B3A3B.BA.A$46.8B11.2A5.8B7.A5.2B2A10.
B.3B2AB3AB.B2A$47.8B16.10B5.2A4.4B14.BA4B3A2B$48.8B15.6B.4B4.9B15.B.B
A5BAB$49.8B13.6B3.4B5.6B17.2BA4BA$50.8B8.B2.3BA3B4.4B2.8B18.2BAB2A$
51.8B5.7BABA2B5.2B2A11B14.6B.2B$52.8B4.7BABA2B6.BABA10B14.2A4.2BAB$
53.3BA4B2.9BA3B7.A12B15.A5.A.A$54.ABA5B.11B.B2A6.10B.B2A10.3A7.A$55.
2A3BABA.9B2.BA.A7.3B2AB3.BA.A9.A$56.5B2A8B7.A7.3BABA6.A$57.4BA6BA2B7.
2A8.3BA6.2A$58.11BA18.BAB$59.8B3AB14.AB.2B$60.12B12.A.ABA2B$61.12B11.
A.4A2B15.A$62.12B7.2A.A.A.B.A2.A3.A7.3A$63.12B6.A2.A2.2A.4A2.A.A5.A$
64.12B7.2A4.A6.BA2B4.2A$65.12B12.A.A5.2B.6B$66.BABA8B12.2A6.2B2A2B20.
A$67.B2A4BA4B18.4B2A2B17.3A$68.A6BA4B15.6BABA.B15.A$69.4B3A5B14.5BA5B
15.2A$70.10BAB11.2AB.2BA5BAB.B10.4B$71.10B2A9.A.AB.9BA4B7.3B$72.8B2A
2B8.A4.BA2B2A2BA5B.2B3.BA2B$73.12B6.2A4.2BA6BA9B3AB5.2A$74.12B9.2AB.
4B3A14B5.A$75.12B7.A.AB.5BA10BA5B.BA.A$76.12B6.A5.14B3A4B.B2A$77.12B
4.2A5.B3A9BA6BA2B4.2A$78.3BA8B9.2BAB3.2B.5BA2B2A2BAB4.A$79.3BA8B7.4B
7.4BA9B.BA.A$80.3A3BA5B5.4B10.B.BA5BA2B.B2A$81.6B2A4B3.4B14.5BA5B$82.
4B2A6B.4B15.B.ABA6B$83.11BA3B17.2B2A4B$84.8BABA2B19.2B2A2B$85.8B2A2B
17.6B.2B$86.12B16.2A4.2BAB$87.12B5.2A9.A5.A.A$88.12B3.B2AB5.3A7.A$85.
B3.2B2.BABA4B3.2B6.A$84.2AB.3B3.B2A5B3.2B$84.2A3BA5.A7B.2BAB$81.A3.B.
BA.A5.9BA.A$71.A7.3A6.BA.A5.3BA4B.A$70.A.A5.A12.A6.ABA2B4.3A$70.BA2B
4.2A11.2A6.2A2B6.A$71.2B.6B18.6B$72.2B3AB19.6BAB$71.8B17.4B2.2B2A$69.
3BA4BA.B15.4B4.2A2B$69.3BA2B3A2B14.4B6.4B$67.2AB.7B2AB.B10.4B8.3BA$
66.A.AB.2B2A3BA2BA3B7.4B10.3BA$66.A4.2BA2BA2BABA3B.2B3.2A2B12.3AB$65.
2A4.2BA2BABA2BA9B3A5.2A7.4B$69.2AB.B3AB2A10BABAB5.A9.4B$68.A.AB.B4A
12B4AB.BA.A10.BABA$68.A5.BABA10B2AB3AB.B2A12.B2AB$67.2A5.3A9BA2BABA2B
A2B4.2A9.A3B$73.2B2A3.2B.3BABA2BA2BA2B4.A11.4B$73.3B7.3BA2BA3B2A2B.BA
.A12.3BA$71.4B10.B.B2A7B.B2A14.ABAB$71.2A15.2B3A2BA3B17.2A2B$72.A15.B
.A4BA3B18.4B$69.3A17.8B21.2BAB$69.A20.B3A2B23.2B2A$88.6B.2B23.2A2B$
88.2A4.2BAB23.4B$89.A5.A.A24.3BA$86.3A7.A26.3BA$86.A37.3AB!

It has a small diagonal BB, at any rate.

[Sokwe]

P59 dependent reflector-based glider loop:

With a little bit of work this can be used to reduce the true p59 gun (14592 -> 11782):

Code: Select all

x = 137, y = 86, rule = B3/S23
42b2o$42bobo$44bo4b2o$40b4ob2o2bo2bo$40bo2bobobobob2o23b2o$43bobobobo
25bobo33bo$44b2obobo19b2o4bo34bobo$48bo18bo2bo2b2ob4o28b3obo$67b2obobo
bobo2bo27bo4bob2o$34b2o34bobobobo30bobobobobo$35bo7b2o25bobob2o26b2o4b
2obobo$35bobo5b2o26bo31bo8bobo11b2o$36b2o65bobo7bo12bo$84b2o18b2o18bob
o$43b3o38bo39b2o$45bo28b3o5bobo$44bo28bo3bo4b2o37b2o$72bo5bo39b2obo$
72bo5bo25bobo13bobobo$46b2o24bo5bo10bo6b2o6b2o$46bo26bo3bo11b3o3bo2bo
6bo8b2o12bo$47b3o7bo16b3o15bo3bo2bo14b2o11b2o$49b3o6b2o31b2o39bo$52bo
4b2o13b2o26bo19b2o8b3o$47b4obo20bo20b2o2bo2bo10b2o15bo$47bo2bob2o16b3o
21b5ob2o4b2o5bo10bo4b2o$70bo22bo2bobo3bo3b2o2b3o4b2o$51b3o39bobo2bob2o
8bo6b2o14b2o$29bo20bo2bo41b2o3b2o30bo2bo$29b2o19b2o5bobo6b2obo16b2o7b
5o32b2obo$28bobo26b2o7b2ob3o13b2o9bo18b2o18b2o$58bo13bo14bo28bo15b2o2b
o$66b2ob3o31b2o11bobo12bo2b2o$67bobo13b2o18bobo11b2o11bob2o$57b2o8bobo
12bobo7bo12bo15b2o8bo2b2o$57b2o9bo13bo8bobo11b2o14b2o10bo2bo$81b2o4b2o
bobo41b2o$86bobobobobo20b2o$86bo4bob2o14b2o4b2o8bo$87b3obo18bo14bo$66b
o22bobo18bob2o4bobo3bo$64b3o23bo20bo3bo4bo4b2o$3b2o58bo56bo3bobo$4bo9b
2o46bobo48b2o$2bo10bobo29b2o9b2o5bo51b2obo5bo3b2o$2b5o8bo5b2o23bo8b3o
57b3o10bo$7bo13bo24bobo6bo2bo6bo47bo2bo12b3o$4b3o12bobo25b2o7b3o3bobob
o49bo4bo9bo$3bo15b2o35b3o3b2o2bo46bo7b2o$3bob2o59b2o$b2o3bo3b2o$o2b3o
5bo$2obo$3bo40b2o71b2o$3b2o40bo$45bobo16bo$46b2o14b3o$11b2o9b2o37bo53b
obo$12bo8b2o29b2o7b2o53bo$9b3o11bo27b3o63bo$9bo40b2o7bo53bo9bob2o$49b
2o7b3o52bo9b2obo$50b2o8bo31bo$36bo22b3o21b2o5b3o$36b3o17b2o2b2o22bo4bo
24b3o$39bo17bo3bo22bobo3bo7b2o14bo2bo$38b2o17bo27bobo3bo7bo12bo3b2o$
57bo2bo25bo3b2o7bobo10b3o$44b2o9bo2b2o40b2o11bo7bo$40b3o11bo3bo61bobo$
36bob2o2bo4bo7bobo13b4o28b2o6bo9b2o$35b5o4bo11bo14b2ob2o11b2o13bo2bo4b
6o$35b2ob4o2bo24bo2bo2b2o10bobo13bobo3bo7bo$37b2o5b2o3bo19b3o3bo11bo5b
o10bo5bo6bo$39b2ob2o3b2obo17bo2bo2bo17bo2b2o13bo$39bobobo6bo17bobo20bo
5bo13bobo$50b2o17b2o23b2ob2o$40b3o17bo29bo3b4o$37bo2b2o17bobo29bo4bo$
36bobob2o17b2o31b3o$36bobobobo25b2o24bo$33b2obobobobo2bo22bo20b2o$33bo
2bo2b2ob4o23bo20bo7b2o$35b2o4bo26b2o17b3o9bo10bo$41bobo43bo8b3o12bo$
42b2o52bo12b3o!

Notice that the one instance of this new p59 reflector is supported by a pre-Herschel rather than a glider. There might be a slightly smaller solution using the same ideas. Keep in mind that several different timings and lanes can be used for the input glider of the new p59 reflector. Here are just two examples to give the idea:

Code: Select all

x = 96, y = 31, rule = B3/S23
22bo59bo$21bobo57bobo$21bob3o55bob3o$18b2obo4bo51b2obo4bo$18bobobobobo
51bobobobobo$20bobob2o4b2o48bobob2o4b2o$6b2o11bobo8bo35b2o11bobo8bo$7b
o12bo7bobo36bo12bo7bobo$7bobo18b2o37bobo18b2o$8b2o7b3o48b2o7b3o$16bo3b
o55bo3bo$15bo5bo53bo5bo$15bo5bo53bo5bo$15bo5bo53bo5bo$16bo3bo55bo3bo$
5b2o10b3o45b2o10b3o$5b2o58b2o3$20b2o11bobo44b2o11bobo$20bo13b2o44bo13b
2o$15b2o4b3o10bo40b2o4b3o10bo$15b2o6bo51b2o6bo6$3o58bo$2bo58b2o$bo58bo
bo!

Could there be a way to support the new reflector with one of the small p59 oscillators to make a gun directly? I couldn't find a solution.

[nokangaroo]

p17 gun: Further reduction

Code: Select all

x = 128, y = 108, rule = LifeHistory
34.A36.A$24.A7.3A26.A7.3A$23.A.A5.A28.A.A5.A$23.BA2B4.2A27.BA2B4.2A$
24.2B.6B28.2B.6B$25.6B31.6B$24.8B18.2A9.8B18.2A$22.9B.B17.A8.9B.B17.A
$22.11B14.BA.A8.11B14.BA.A$20.2AB.2B2A6B.B11.B2A7.2AB.4BA5B.B11.B2A$
19.A.AB.2B2A10B7.3B8.A.AB.3B3A8B7.3B$19.A4.6B3A5B.2B3.4B8.A4.2BA3BA7B
.2B3.4B$18.2A4.4B6A13B5.2A.2A4.3B3A17B5.2A$22.2AB.2B2A4BA5B2A5B5.A6.
2AB.2BA18B5.A$21.A.AB.6BABA4BABA6B.BA.A5.A.AB.22B.BA.A$14.A6.A5.5B2A
5BA4B2A2B.B2A6.A5.18BA2B.B2A$14.3A3.2A5.13B6A4B4.2A.2A5.17B3A3B4.2A
12.A$17.A8.4B3.2B.5B3A6B4.A8.4B3.2B.7BA3BA2B4.A3.A7.3A$16.2A7.4B7.10B
2A2B.BA.A7.4B7.8B3A3B.BA.A2.A.A5.A$16.5B3.4B10.B.6B2A2B.B2A7.4B10.B.
5BA4B.B2A3.BA2B4.2A$18.3B2.4B14.11B8.4B14.11B6.2B.6B$8.2A7.5BA3B15.B.
9B7.4B15.B.9B7.BA4B$8.A8.4BA3B17.8B8.4B17.8B8.3A5B18.2A$5.2A.A.B3.7B
3A19.6B8.4B19.6B7.BA7B.B17.A$5.A2.3AB.2B2A7B17.6B.2B6.BA2B18.6B.2B6.B
4ABA4B14.BA.A$6.2A2.BA3B2A7B17.2A4.2BAB4.2A2B13.A.2A2.2A4.2BAB3.2AB.
3BA6B.B11.B2A$8.4A12B18.A5.A.A3.2B2A14.2A.A3.A5.A.A2.A.AB.11BA2B7.3B$
8.A.2B3.7B.B2A13.3A7.A3.4B19.3A7.A3.A4.10BABAB.2B3.4B$3.2A4.3AB2.7B.B
A.A12.A12.4B12.A10.3A7.2A4.8B2A2B2A9B5.2A$3.A2.A5.A4.4B5.A24.4B4.A.2A
5.3A7.A3.A10.2AB.6B2AB3ABA7B5.A$4.8A5.4B5.2A22.4B3.3A.A.A7.A5.A.A2.3A
7.A.AB.6B2ABA2BAB2A6B.BA.A$9.A8.4B27.4B3.A4.A.A6.2A4.2BAB5.A6.A5.7BAB
3AB2A6B.B2A$4.2A.A11.4B25.4B4.5A.A7.6B.2B5.2A5.2A5.9B2A2B2A8B4.2A$5.A
.2A11.2BAB23.4B9.A11.B3A2B19.4B3.2B.BABA10B4.A$5.A3.A11.2B2A21.4B6.2A
B2.A9.8B17.A3B7.2BA11B.BA.A$3.2A.2A3B11.2A2B19.4B7.A.A2B.A7.B.A4BA3B
14.A3B10.B.6BA3B.B2A$4.A.A2.2A2.A9.4B17.4B9.A2B.2A7.2B3A2BA3B13.B3A
14.4BAB4AB$4.A.A3.4A7.2B.4B15.A3B9.3B8.B.B2A7B.B2A10.4B15.B.7BAB$5.A
3.AB8.10B13.BABA10.2B7.3BA2BA3B2A2B.BA.A8.4B17.5B3A$9.B.2A.A4.11B11.
2B2A10.2B2A3.2B.3BABA2BA2BA2B4.A7.4B19.4BAB$7.BAB2A.2A3.8BA4B9.4B5.2A
5.3A9BA2BABA2BA2B4.2A5.4B18.6B.2B$7.2AB9.5BABA5B7.4B7.A5.BABA10B2AB3A
B.B2A8.4B19.2A4.2BAB$8.B10.6B2A6B5.4B8.A.AB.B4A12B4AB.BA.A6.4B21.A5.A
.A$.2A7.2B6.16B3.4B10.2AB.B3AB2A10BABAB5.A5.4B19.3A7.A$2.A5.5B4.9B.8B
.4B7.2A4.2BA2BABA2BA9B3A5.2A3.4B13.2A5.A$2.A.AB.6B2.4B2A3B4.11B9.A4.
2BA2BA2BABA3B.2B3.2A2B8.4B13.A.A$3.2AB.4BA6BA2BA2B5.7BAB10.A.AB.2B2A
3BA2BA3B7.4B6.4B8.2A4.A$5.4B2ABA6B2A2B2.2A3.4BABAB11.2AB.7B2AB.B10.4B
4.BA2B4.2A.A2.A2.2A.4A$5.4BA2BA9B4.A4.4B2A2B12.3BA2B3A2B14.4B2.2A2B4.
A.A.2A.A.A.A.A2.A$5.4B3A12B2.A.AB2.2B2.4B11.3BA4BA.B15.6B2A5.A6.A.ABA
BAB$5.12B5.2A3.2AB2.3B2.2BAB12.8B17.6B4.B2A6.A.AB2AB$6.10B6.A6.3B.AB
3.2B2A12.2B3AB19.4B.2B.2B9.AB.2B$6.11B6.3A4.B3A5.2A2B10.2B.6B15.12B4A
.2A5.3B$6.7B.4B7.A4.A9.4B8.BA2B4.2A15.10B.BA2.A.A6.4B6.2A$7.5B3.4B9.
3AB2A7.4B7.A.A5.A12.A.2AB.10B2.A2.A4.3B2AB6.A$7.4B5.4B7.A4.A.A7.4B7.A
7.3A7.3AB2AB3.3BABA2B3.2A5.3B2AB3.BA.A$8.B8.4B7.3A3.A8.4B16.A6.A4.B4.
5B2A3B7.10B.B2A$18.4B8.2A2.2A8.4B23.3A.2A3.5BA4B6.13B6.A$19.B3A22.4B
24.A.A5.9B5.A13B6.3A$20.A3B10.2A10.BABA23.A.A7.B2A4B4.A14B2.A6.A$21.A
3B9.A12.B2AB23.A8.B2A4B3.B3A2.8B4.3A3.2A$22.4B10.A11.A3B30.6B4.4B5.6B
7.A2.4B$9.2A5.2A5.4B5.5A12.4B29.6B3.4B4.8BA5.2A4.2B3.BA$9.A3.2A2.A5.
4B4.A18.3BA28.7B.4B5.2A4.B2AB4.9B.BA.A$11.A2.2A.A.AB.7B2.B3A16.ABAB
28.10B7.A5.ABAB5.5B2A3BA$10.3A3.A.2AB.7B3.2B.A16.2A2B26.10B5.3A7.4B2.
4B2A3BA.B$9.A6.A3.12B4A17.4B26.A2B2A3B6.A10.10B5AB$9.2A3.3A3.7B2A3BAB
2.2A16.4B25.7B19.10B2A3B$7.4B2.A6.7B2A2B.B3A2.A16.4B24.A3BAB8.A12.14B
$2.AB3.2B4.2A5.A9B3.B.A.2A17.4B23.4BAB6.3A13.13B$.A.AB.9B4.B2A5B8.A
21.4B22.BABA3B4.A16.2B3A4B.B.B2A$2.A3B2A5B5.BABA5B7.2A22.3BA21.7B4.2A
15.BA3BA4B2.BA.A$3.B.A3B2A4B2.4B2.3B33.3BA20.B3A4B.4B14.BA5BAB7.A$4.B
5A10B3.5B32.3AB19.11B16.BABA4B8.2A$4.3B2A10B7.2A33.4B18.12B16.7BA$4.
14B8.A22.A12.4B5.A11.12B14.A2BABA3B$4.13B10.3A19.3A7.A3.BABA4.3A10.
11B14.3BABA2BA$2.2AB.B.4B3A2B12.A22.A5.A.A3.B2AB6.A12.7B14.A7B$.A.AB
2.4BA3BAB34.2A4.2BAB4.A3B4.2A11.8B5.2A8.4BABAB$.A7.BA5BAB33.6B.2B6.4B
3.10B.2A8B6.A7.BA5BAB$2A8.4BABAB35.4BAB8.4B4.7B5A9B4.A.AB2.4BA3BAB$9.
A7B15.2A18.4B4A8.4B2.7BA4BA4B4AB5.2AB.B.4B3A2B$10.3BABA2BA14.A17.B.3B
A4BA7.4B.7BA2B3A2BAB2AB2AB.B4.13B$10.A2BABA3B14.A.AB14.4BA6B8.11B2A2B
A3B3A3B2AB2A3.14B$12.7BA14.2AB11.B.6BA3B.2BA7.2BA9B2A3B2A4B2A2B2A3.3B
2A10B$11.BABA4B8.2A7.3B7.B3A7B2AB.2A.A7.2B2AB2.2B2.B3.2BA2BA6B4.B5A9B
$11.BA5BAB7.A8.4B3.2B.5A9B4.A8.2A2B5.3B3.B4A2B.3B3.B.A3B2A4B2.4B$12.B
A3BA4B2.BA.A2.2A5.7B8A8B4.2A6.6B4.B2AB4.B2AB7.A3B2A5B6.2A$12.2B3A4B.B
.B2A4.A5.6B2A6B2A5B.B2A9.7BA4.2A5.3B7.A.AB.9B4.A$12.13B6.A.AB.6B3A4B
3A6B.BA.A7.4B2.3BA8.2AB10.AB3.2B4.2A5.3A$11.14B7.2AB.5B2A6B2A6B5.A6.
4B4.3AB6.A.AB15.4B2.A8.A$10.10B2A3B3.2A4.8B8A7B5.2A4.3AB6.4B5.A20.2A
3.3A$10.9B5AB4.A4.9B5A.2B3.4B9.3BA8.4B3.2A20.A6.A$8.4B2.4B2A3BA.B3.A.
2A.B2A7B3AB7.4B7.3BA10.BABA25.3A$8.2A6.5B2A3BA3.A2B.3BA6B.B10.3BA5.4B
12.B2AB26.A$9.A4.9B.BA.A4.6BA4B14.ABAB3.4B9.A4.A3B$6.3A5.2A4.2B3.BA5.
A4BA3B.B11.A3.2A2B.4B8.3A5.4B$6.A8.A2.4B12.4A4B7.A3.A.A3.7B8.A9.3BA$
12.3A3.2A15.BA4B7.A.A2.A.A4.5B9.2A9.ABAB$12.A6.A14.2B.6B5.A.A2B.A4.6B
7.4B10.2A2B$16.3A14.BA2B4.2A6.A2.2B4.4B2A4B2.A.2A13.4B$16.A16.A.A5.A
8.4A3.4BA2BA2B.A3B.AB13.2BAB$34.A7.3A9.B3.3BABA4BA2B2AB15.2B2A$44.A7.
3A4.3BAB4.A3.A17.2A2B$51.A2.B2.5B5.4BAB18.4B$51.ABA2B.2A7.AB2ABA20.3B
A$49.A.A.ABAB.A7.BAB24.3BA$49.2A5.2A9.A26.3AB!

[GUYTU6J]

I saw this construction of period-lcm(46,130) glider gun.

p2990 gun:

Code: Select all

x = 46, y = 59, rule = B3/S23
5b2o32b2o$5b2o32b2o3$24b2o$2o4b2o18bo11b2o4b2o$2o3bobo16b3o10bo2bo3b2o
$5b3o13bo16bobo$18b3ob2o15bo$18bo3b2o$3bo20bo17bo$2bobo14bo3bo17bobo$
2b2o16b4o18b2o2$2b2o16b4o18b2o$2bobo14bo3bo17bobo$3bo20bo17bo$18bo3b2o
$18b3ob2o15bo$5b3o13bo16bobo$2o3bobo16b3o10bo2bo3b2o$2o4b2o18bo11b2o4b
2o$24b2o3$5b2o32b2o$5b2o32b2o4$27b2o$27b2o2$40b2o$40bobo$42bo$42b2o3$
27b3o3b3o$26bo2bo3bo2bo$26b2obo3bob2o16$27b2o5b2o$27b2o5b2o!

(probably known)

Inspired by this, I improved gun_2070 (=lcm(46,45)) from 2200 (period-tripled p690) to 1426 cells, making it the smallest gun with a four-digit period:

Code: Select all

x = 46, y = 31, rule = LifeHistory
8.2A5.2B$8.A.A2.4B$9.A8B$4.B6.7B$3.BAB5.2BA3B$3.3A4.2B3AB$2.5B3.B2A2B
AB$2.5B3.BA3BAB$.2B3A2B2.BAB2AB2.B$.7B2.B2A3B.B2A$3BABA12B2A$3BABA5B
2A3B.2B$.7B.2BAB2AB$.2B3A5BA3BAB$2.5B.3B2A2BAB26.2A$2.5B3.2B3AB26.B2A
$3.3A4.3BA2B4.4B3.B.9B.B2.B$3.BAB4.7B3.4B.2BA3B2A12B$4.B5.7B2.2A4B2AB
AB3A11B2A$10.6B3.2A4BA4B3A11B2A$10.7B3.B.3BA3BA13B.B$10.8B4.4B3A14B$
9.13B.B.3B$6.2B.17B3A14B$5.2A18BA3BA13B.B$5.2AB.16BA4B3A11B2A$6.B.17B
2ABAB3A11B2A$10.17BA3B2A12B$10.11BA.B.3B.9B.B2.B$10.6B3.3BA19.B2A$12.
3B5.3AB19.2A!

And gun_2346 (=lcm(46,102)) from 3780 (period-tripled p782) to 2337 cells:

Code: Select all

x = 57, y = 41, rule = LifeHistory
18.2A$17.B2A2B$18.4B$19.A2B$14.B3.ABAB$13.2AB.A.BA$13.2ABA2B$14.3B2A$
14.4B$12.2B$6.2B2.5B$5.2A9B$4.15B$4.16B$4.16B7.4B$2.2A.16B5.B4A$2.A2.
11B3A2B5.A4BA$A.A2.12B2A2B3.BA.A.2BA$2A3.9B2A5B2.BABA3.A21.2A$5.8B5A
2B3.BAB26.A.A$6.7BA8B.BA2B26.AB$7.7B3A5B.BA2BA4.4B3.B.9B2.2B$6.9BA7B
2.2A5.4B.10B4A5B$6.16B9.2A14BA2B2A3B2A$6.16B9.2A15BA2B2A2B2A$6.18B8.B
.14BA2BA2B.B$7.18B9.15B2A2B$7.20B4.2BA.B.A2B$8.21B2.BABABABA10B2A2B$
11.19B2A2BABA2B2A7BA2BA2B.B$12.5B2.6B2.3B2A7B2A7BA2B2A2B2A$13.2B4.5B
4.2B2A2BABA2B2A6BA2B2A3B2A$9.B2AB7.2B7.3BABABABA8B4A5B$8.B4A17.3BA.B.
A2B.9B2.2B$8.A2BABA17.4B18.AB$6.BA.A.B2A18.4B16.A.A$5.BABA3.B20.4B15.
2A$5.2AB26.4B$5.3AB26.3BA$5.BABAB26.3BA$7.2A28.3AB!

EDIT (8/10/22): Slightly smaller p736 gun, using a new p32 honey farm hassler discovered today:

Code: Select all

x = 53, y = 29, rule = LifeHistory
2.2B46.2A$2.3B44.B2A$2B3A22.4B3.B.9B.B2.B$2B3AB21.4B.5BA14B$.B3A.B19.
2A8B2A13B2A$3.B.3AB6.A.A8.2A7B2A14B2A$4.B3A2B3.3A.3A7.B.7B2A2B2A10B$
5.3A2B2.A7.A8.23B$5.3B2.B.2A5.2A5.3B.B.3B$6.2B.5B5.4B3.26B$2A5.A4B9.
15B2A2B2A10B$A.A2.BABA4B2A2B.17B2A14B2A$2.A2.3A5B2A21B2A13B2A$2.4ABA
2BA2BA2BA20BA14B$4.B2A2BABA2BABA12B.B.3B.9B.B2.B$2.4ABA2BA2BA2BA10B
22.B2A$2.A2.3A5B2A6B3.4B22.2A$A.A2.BABA4B2A2B.3B4.4B$2A5.A4B14.4B$6.
2B.5B13.4B$5.3B2.B.2A14.4B$5.3A2B2.A16.4B$4.B3A2B3.3A14.4B$3.B.3AB6.A
15.4B$.B3A.B25.4B$2B3AB28.2C$2B3A29.C$2.3B30.3C$2.2B33.C!

Similarly, gun_1656 (=lcm(46,72)) from 2275 (period-nonupled p184) to 1550 cells, second smallest four-digit period gun:

Code: Select all

x = 50, y = 31, rule = LifeHistory
47.2A$46.B2A$24.4B3.B.9B.B2.B$24.4B.3B4A13B$23.2A6B2A2BA12B2A$23.2A5B
2A2BA13B2A$24.B.5BA2BA12B.B$26.6B2A13B$5.2B8.2B6.3B.B.3B$4.4B6.4B5.9B
2A13B$3.16B.11BA2BA12B.B$3.10BA16B2A2BA13B2A$4.8BA5B.12B2A2BA12B2A$2.
7B2A4B3A14B4A13B$.6B2A2BA6BA7B.B.3B.9B.B2.B$2.6B2A4B2ABA6B22.B2A$3.
12BABAB2.4B22.2A$3.2A11BA2B3.4B$3.2A5B2.3B2A2B4.4B$4.5B4.2B2AB6.4B$4.
3B8.3B7.4B$4.A12.A8.4B$3.A2B10.2BA8.4B$2.A.3BA6.A3B.A8.4B$2.3A3BA4.A
3B3A9.4B$2A2.2B3A4.3A2B2.2A8.4B$.A.A14.A.A10.4B$.A.6A4.6A.A11.4B$2.A
5.A4.A5.A13.3BA$3.3A10.3A15.3BA$5.A10.A18.3AB!

Do we have other suitable banana sparker or v sparker?
---
EDIT: amazingly, the 180-degree reflector based on hotcrystal0 reaction provides a good banana spark that can be applied. Here are gun_3036 (=lcm(46,132)) and gun_6072 (=lcm(46,264)) both in 2912 (56×52) cells:

Code: Select all

x = 116, y = 52, rule = LifeHistory
5.2A58.2A$3.2B2AB55.2B2AB$3.2B2A56.2B2A$3.2BA17.2B38.2BA17.2B$3.BABA
3.B10.6B36.BABA3.B10.6B$4.BA.A.3A9.7B36.BA.A.3A9.7B$6.AB4A8.9B37.AB4A
8.9B$6.BA3B10.9B36.BA3B10.9B$7.4B10.10B36.4B10.10B$3.2A7.2B6.12B31.2A
7.2B6.12B$4.A5.5B4.9B.4B31.A5.5B4.9B.4B$4.A.AB.2B3AB2.4B2A3B4.4B30.A.
AB.6B2.4B2A3B4.4B$5.2AB.BA3BA5BA2BA2B5.4B30.2AB.11BA2BA2B5.4B$7.2BA5B
A5B2A2B7.4B31.14B2A2B7.4B$7.2BA5BA8B9.4B30.B2A14B9.4B$7.2BA5BA10B8.4B
29.B2A16B8.4B$7.3BA3BA4B5.2A9.4B28.12B5.2A9.4B$8.3B3A4B6.A11.4B8.B19.
10B6.A11.4B8.B$7.12B6.3A9.4B5.4B17.12B6.3A9.4B5.4B$7.8B.4B7.A10.4B3.
5B17.8B.4B7.A10.4B3.5B$7.7B3.4B10.A7.4B.7B16.7B3.4B10.A7.4B.7B$8.6B4.
4B9.3A6.11B17.6B4.4B9.3A6.11B$7.6B6.4B11.A6.4B3A3B16.6B6.4B11.A6.4B3A
3B$8.6B6.4B9.2A5.4BA3BA3B16.6B6.4B9.2A5.4BA3BA3B$8.7B6.4B8.10BA5BA2B
16.7B6.4B8.10BA5BA2B$6.B2.7B6.4B9.8BA5BA2B14.B2.7B6.4B9.8BA5BA2B$5.2A
B.8B6.4B7.2B2A5BA5BA2B13.2AB.8B6.4B7.2B2A5BA5BA2B$3.2B2A11B6.4B5.2BA
2BA5BA3BAB.B2A9.2B2A11B6.4B5.2BA2BA5BA3BAB.B2A$3.4B.11B6.4B4.3B2A4B2.
B3A2B.BA.A8.4B.11B6.4B4.3B2A4B2.B3A2B.BA.A$3.6B.5B.4B6.4B.9B4.5B5.A8.
6B.5B.4B6.4B.9B4.5B5.A$3.13B.4B6.12B6.2B7.2A7.13B.4B6.12B6.2B7.2A$5.
4B.5B3.4B6.10B10.4B13.4B.5B3.4B6.10B10.4B$4.12B3.4B6.9B10.3BAB11.12B
3.4B6.9B10.3BAB$4.B3A3B3A2B4.4B6.9B8.4ABA11.B3A3B3A2B4.4B6.9B8.4ABA$
3.BA2BA3BA2BAB5.4B6.7B9.3A.A.AB8.BA2BA3BA2BAB5.4B6.7B9.3A.A.AB$4.A3BA
.A3BA7.4B6.6B10.B3.ABAB8.A3BA.A3BA7.4B6.6B10.B3.ABAB$3.2ABABA.ABAB2A
7.4B7.2B17.A2B7.2ABABA.ABAB2A7.4B7.2B17.A2B$3.2AB2AB.B2AB2A8.4B24.2A
2B7.2AB2AB.B2AB2A8.4B24.2A2B$3.B3A2B.2B3AB9.4B22.B2A2B7.B3A2B.2B3AB9.
4B22.B2A2B$3.6B.6B10.4B22.2A9.6B.6B10.4B22.2A$3.6B.6B11.4B32.6B.6B11.
4B$3.6B.6B12.4B31.6B.6B12.4B$3.6B.6B13.4B30.6B.6B13.4B$3.6B.6B14.4B
29.6B.6B14.4B$3.6B.6B15.4B28.6B.6B15.4B$4.5B.5B17.4B28.5B.5B17.4B$4.
5B.5B18.4B27.5B.5B18.4B$2A.6B.6B.2A15.4B22.2A.6B.6B.2A15.4B$A.A5B3.5B
A.A16.4B21.A.A5B3.5BA.A16.4B$.AB.3B5.3B.BA18.3BA21.AB.3B5.3B.BA18.3BA
$4.B2AB3.B2AB22.3BA23.B2AB3.B2AB22.3BA$5.2A5.2A24.3AB23.2A5.2A24.3AB!

They were formerly something like

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH gun_3036 costs 5369 cells.
#C period 3036 fullperiod 3036 bbox 91 by 59
#CLL state-numbering golly
x = 91, y = 59, rule = LifeHistory
77.2A5.2A$73.2A.B2AB3.B2AB.2A$73.2A.3B5.3B.2A$52.B.9B.B9.7B.7B$48.
B.17B9.5B.5B$47.7B3A11B8.5B.5B$32.B.9B.B2.7BA3BA10B6.6B.6B$30.24BA
4BA9BA6.5B.5B$29.11B2A13BA3BA9B3A3.6B.6B$28.13B2A6B23.A2.2BA3B.3BA
2B$27.A9B5A13BA3BA9B3A3.6B.6B$25.3A9B4A13BA4BA9BA5.3A3B.3B3A$24.A
22.7BA3BA10B6.B2AB2A.2AB2AB$25.3A9B4A7B.5B3A11B7.2B3AB.B3A2B$27.A
9B5A25B8.3BA2B.2BA3B$9.2A4.2B4.2A5.13B2A6B2.12B.B10.6B.6B$8.A2.A.
6B.A2.A5.11B2A7B3.4B19.6B.6B$8.3A2.6A2.3A6.17B6.4B19.5B.5B$11.2A6B
2A11.B.9B.B9.4B17.6B.6B$10.A2.6B2.A33.BABA17.5B.5B$10.2A.A4BA.2A
34.B2AB16.5B.5B$13.2B2A40.A3B8.5B3.12B$14.3B15.B25.4B5.2B4A2B2.3B.
9B$11.7B3.A9.4B24.4B4.BA4BAB4.5B.4B$10.B2A5B3.3A7.5B24.4B.3BA5BAB
3.5B.5B$10.2AB2A4B5.A5.6B24.12BA3B2.6B.5B$10.2A2BA4B4.2A5.7B24.7BA
3BA2B2.7B.6B$11.BA5B5.4B2.8B22.7B2A16B.5B$13.3BAB7.13B6.A13.8B2ABA
4BA9B.6B$10.B2.BABAB2.B2.15B4.3A13.8B3A5BA9B.6B$.3B3.B.6BA6B.15B3.
A17.B.8BA4BA5B3AB.B3A2B$.38B2.2A20.7BA2BA2B2.BA3BA.A3BAB$2A37B.3B
21.7B2A2B3.A3B2A.2A3BA$2A39B16.2A6.B2.6B4.AB2A2B.2B2ABA$.B.11B3A
12BA12B14.B2AB8.6B4.2BA3B.3BA2B$4.11BA12B3ABA10B13.4B7.7B4.6B.6B$
6.9BA11BA4BA11B13.2B8.7B4.6B.6B$6.9BA12B3A9B.4B9.B.5B5.9B4.5B.5B$
4.11BA10B.2BA10B2.4B7.8B4.10B3.6B.6B$.B.11B3A10B.11B4.4B6.9B2.10B
5.5B.5B$2A25B4.7B6.4B5.9B.4B2.3B7.5B.5B$2A25B8.B3.BA4.2BAB3.14B4.B
9.4B.4B$.24B.B2A9.A.AB4.2B2A3.12B13.6B.6B$.3B3.B.6BA6B.B2.BA.A8.BA
.A5.2A2B2.11B14.6B.6B$10.B2.BABAB2.B8.A9.AB7.16B14.4B5.4B$13.3BAB
11.2A18.16B13.2B2AB3.B2A2B$11.BA5B30.13B.4B14.2A5.2A$10.2A2BA4B30.
11B3.4B$10.2AB2A4B31.9B5.4B$10.B2A5B32.9B6.4B$11.7B32.10B6.4B$14.
3B32.11B7.4B$13.2B2A33.10B8.4B$10.2A.A4BA.2A28.11B8.4B$10.A2.6B2.A
28.11B9.4B$11.2A6B2A27.2AB2.6B.B2A8.4B$8.3A2.6A2.3A23.A.AB4.3B2.BA
.A8.3BA$8.A2.A.6B.A2.A23.A8.B6.A9.3BA$9.2A4.2B4.2A23.2A15.2A9.3AB!

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH gun_6072 costs 5850 cells.
#C period 6072 fullperiod 6072 bbox 90 by 65
#CLL state-numbering golly
x = 90, y = 65, rule = LifeHistory
7.2A5.2A20.2A4.2A4.2A24.2A5.2A$3.2A.ABAB3.BABA.2A15.A2.A.A4BA.A2.A
19.2A.B2AB3.B2AB.2A$3.AB.3B5.3B.BA15.3A2.6B2.3A19.2A.3B5.3B.2A$4.
2A4BA.A4B2A19.2A6B2A23.7B.7B$6.BA2BA.A2BAB20.A2.6A2.A24.5B.5B$6.5B
.5B20.2A.6B.2A24.5B.5B$5.6B.6B24.2B28.6B.6B$6.5B.5B25.2B29.5B.5B$
5.2BA3B.3BA2B20.B3.2B.BAB12.2A10.2B2A2B.2B2A2B$5.3BABA.ABA3B19.2AB
.6B2A10.B2A2B8.6B.6B$5.3BABA.ABA3B19.2A7B3A4.2B5.4B8.BA4B.4BAB$5.
2BAB2A.2ABA2B20.B.3B5AB3.ABA2B.7B7.BA3BA.A3BAB$5.2B2A2B.2B2A2B23.
6B3.BA2BA10B7.BA3BA.A3BAB$5.6B.6B23.2B3A4.BA2BA11B6.2BABAB.BABA2B$
5.6B.6B20.B2.2B2AB2.B.A2BA3BA8B6.3BA2B.2BA3B$5.6B.6B11.3B3.B.6B2A
6BABA2BAB2A6B6.6B.6B$5.6B.6B11.31BA5B6.6B.6B$6.5B.5B11.2A30BA3B.B
2A5.5B.5B$5.6B.6B10.2A13BA14BA5B.BA.A3.6B.6B$6.5B.5B12.B.11B3A10BA
2BA2BA2B4.A4.5B.5B$6.5B.5B15.27B3AB5.2A3.5B.5B$4.12B18.8B3A9B4.2BA
13.12B$3.9B.3B18.8B3A9B4.2BA13.3B.9B$4.4B.5B18.27B3AB5.2A6.5B.4B$
3.5B.5B15.B.11B3A10BA2BA2BA2B4.A7.5B.5B$3.5B.6B13.2A13BA14BA5B.BA.
A6.6B.5B$2.6B.7B12.2A30BA3B.B2A6.7B.6B$3.5B.8B12.31BA5B7.8B.5B$2.
6B.8BA11.3B3.B.6B2A6BABA2BAB2A6B6.9B.6B$2.6B.6BABAB19.B2.2B2AB2.B.
A2BA3BA8B5.A9B.6B$2.6B.6B.2A2B21.2B3A4.BA2BA11B4.BABA.3BA2B.2BA3B$
2.6B.6B2.5B19.6B3.BA2BA10B3.3B2A2.2B3AB.B3A2B$2.2B3AB.B3A2B3.5B15.
B.3B5AB3.ABA2B.7B2.5B3.B2AB2A.2AB2AB$2.2BA2BA.A2BA2B4.5B13.2A7B3A
4.2B5.4B2.5B4.3A3B.3B3A$2.2B2ABA.AB2A2B3.6B13.2AB.6B2A10.B2A2B.7B
3.6B.6B$2.2B2A2B.2B2A2B2.8B13.B3.2B.BAB12.2A2.9B2.2BA3B.3BA2B$2.6B
.6B2.9B16.2B20.9B2.6B.6B$3.5B.5B3.10B15.2B19.10B3.5B.5B$2.6B.6B2.
6B.4B9.2A.6B.2A13.4B.6B2.6B.6B$3.5B.5B3.5B3.3BA8.A2.6A2.A12.4B3.5B
3.5B.5B$3.4B2A5B2.6B4.3BA8.2A6B2A12.A3B4.4B2AB.11B$4.10B.2A4B6.3AB
4.3A2.6B2.3A8.A3B6.2B2A2B.10B$2.6B2AB2.3B2A2.3B5.4B3.A2.A.A4BA.A2.
A7.B3A5.3B2.BA3B2.9B$2.2A4.3B.3BAB4.2A6.4B3.2A4.2A4.2A7.4B6.2A4.5B
.3B4.2A$3.A3.6BA4B3.A8.4B22.4B8.A3.11B3.A$3A4.5B.A4B4.3A6.4B20.4B
6.3A4.5B.5B4.3A$A5.6B.6B5.A7.4B18.4B7.A5.6B.6B5.A$7.5B.5B15.4B16.
4B15.5B.5B$6.6B.6B15.4B14.4B15.6B.6B$6.2B3AB.B3A2B16.4B12.4B16.6B.
6B$6.BA4B.4BAB17.4B10.4B17.2BA3B.3BA2B$6.BA3BA.A3BAB18.4B8.4B18.AB
2A2B.2B2ABA$6.2B3AB.B3A2B19.4B6.4B19.A3B2A.2A3BA$6.3BA2B.2BA3B20.
4B4.4B20.BA3BA.A3BAB$6.6B.6B21.5B.4B21.2B3AB.B3A2B$6.6B.6B22.8B22.
6B.6B$6.6B.6B23.6B23.6B.6B$7.5B.5B24.5B25.5B.5B$6.6B.6B24.5B23.6B.
6B$7.5B.5B22.3B2.4B23.5B.5B$7.5B.5B17.B2.BA3B3.4B22.5B.5B$5.7B.7B
14.3AB2A2B2A3.4B19.7B.7B$4.2A.3B5.3B.2A13.4A4B2A4.3BA17.2A.3B5.3B.
2A$4.2A.B2AB3.B2AB.2A14.3B2A2.B6.3BA16.2A.B2AB3.B2AB.2A$8.2A5.2A
18.3B12.3AB19.2A5.2A!

Lastly, gun_2852 (=lcm(46,124)) in <s>3172</s>2964 cells

Code: Select all

x = 57, y = 52, rule = LifeHistory
5.A11.A$4.A2BA7.A2BA$4.A2BA7.A2BA$6.A.2BA.B2A.A8.2B$8.B2A2B2A8.6B$7.B
A.B.A.AB7.7B$6.B5A2B3A5.9B$2A5.A.3A2B.B7.9B$A2.2A5.B.B10.10B$.A.A2.A
7.2B6.12B$2A.A.2A5.3B2A4.9B.4B$3.A2.A.AB.6B2.4B2A3B4.4B$3.2A2.2AB.7BA
3BA2BA2B5.4B$9.5BA4B3AB2A2B7.4B$9.2B3A4BAB3A3B9.4B$9.B3A6BA8B8.4B8.B$
9.BA7BA2B5.2A9.4B5.4B$10.B2A7B6.A11.4B3.5B$9.3BABABA4B6.3A.A7.4B.BABA
3B$9.4BABAB.4B7.A.3A6.4BABABA2B$9.7B3.4B11.A6.7B2AB$10.6B4.4B9.2A5.2B
A7BAB$9.6B6.4B8.8BA6B3AB$10.6B6.4B9.3B3ABA4B3A2B$10.7B6.4B7.2B2AB3A4B
A5B$8.B2.7B6.4B5.2BA2BA3BA7B.B2A$7.2AB.8B6.4B4.3B2A4B2.6B.BA.A$5.2B2A
11B6.4B.9B4.2A3B5.A$5.4B.11B6.12B6.2B7.2A$5.6B.5B.4B6.10B10.B$5.13B.
4B6.9B9.B2AB$7.4B.5B3.4B6.9B6.A2B3A.2A$6.12B3.4B6.7B6.A.A.B.2A.A$6.B
3A3B3A2B4.4B6.6B5.A.AB3.2AB$5.BA2BA3BA2BAB5.4B7.2B7.A.A5.4B$6.A3BA.A
3BA7.4B14.2A.A.A5.2A$5.2ABABA.ABAB2A7.4B17.2A5.A$5.2AB2AB.B2AB2A8.4B
24.3A$5.B3A2B.2B3AB9.4B25.A$5.6B.6B10.4B$5.6B.6B11.4B$5.6B.6B12.4B$5.
6B.6B13.4B$5.6B.6B14.4B$5.6B.6B15.4B$6.5B.5B17.4B$6.5B.5B18.4B$2.2A.
6B.6B.2A15.4B$2.A.A5B3.5BA.A16.4B$3.AB.3B5.3B.BA18.3BA$6.B2AB3.B2AB
22.3BA$7.2A5.2A24.3AB!

Automated gun construction, anyone?

EDIT on December 1: alas, nobody replied here. The latest two commits contain the following updates:
(using unices)
gun_6624 (=lcm(46,288)) at 3068 cells
gun_3588 (=lcm(46,156)) and gun_7176 at 3224 cells
gun_7728 (=lcm(46,336)) at 3380 cells
gun_5244 (=lcm(46,228)) at <s>5056</s>4928 cells
(using p4 sparkers)
gun_1564 (=lcm(46,68)), gun_3128 and gun_6256 at <s>3328</s>3120 cells
gun_1748 (=lcm(46,76)), gun_3496 and gun_6992 at <s>3536</s>3328 cells
gun_3404 (=lcm(46,148)) and gun_6808 at <s>3484</s>3276 cells
(using p5 sparkers)
gun_1610 (=lcm(46,70)), gun_3220 and gun_6440 at <s>3224</s>3132 cells (why is the smaller toaster variant not mentioned on LifeWiki?!)

Code: Select all

x = 132, y = 54, rule = B3/S23
87b2o$88bo$9bo6bo62bo5b2obob2o$2o5bobobo3bobo60bobo4b3obobo$obo4bo7bob
o60bobo8bo$2bo2b2ob4o2b2ob2o58b2ob2o2b4obo$2b2o3bo3bo2bo3bo58bo3bo2bo
3bo$8b3o4b3o60b3o4b3o$2b2ob3o2bob2obo64bob2obo$3bobo2bo2b4o66b4o$3bobo
bo4b2o68b2o$4b2ob2o68b2o$8bo27bo41bo27bo$8bobo14b2o7bobo41bobo14b2o7bo
bo$9b2o5bo7bo2bo7b2o42b2o5bo7bo2bo7b2o$17b2o6b2o60b2o6b2o$12bo2b3o64bo
2b3o$12bo2b2o65bo2b2o$28b2o68b2o$28bo69bo$29b3o67b3o$31bo69bo3$37bo69b
o$37b3o67b3o$40bo69bo$39b2o68b2o$9b2o41b2o2bo22b2o41b2o2bo$9b2o40b3o2b
o22b2o40b3o2bo$42b2o6b2o60b2o6b2o$32b2o7bo2bo7bo5b2o42b2o7bo2bo7bo5b2o
$32bobo7b2o14bobo41bobo7b2o14bobo$32bo27bo41bo27bo$60b2o68b2o$9b3o3b3o
37b2o22b3o3b3o37b2o$8bo2bo3bo2bo35b4o20bo2bo3bo2bo35b4o$8bo3bobo3bo34b
ob2obo19bo3bobo3bo34bob2obo$7b2obobobobob2o31b3o4b3o16b2obobobobob2o
31b3o4b3o$7b2ob2o3b2ob2o30bo3bo2bo3bo15b2ob2o3b2ob2o30bo3bo2bo3bo$8b3o
5b3o32b4o2b4o17b3o5b3o30bob4o2b2ob2o$55b2o62bo8bobo$51b2ob4ob2o56bobob
3o4bobo$51bo3b2o3bo56b2obob2o5bo$52b3o2b3o60bo$54bo2bo62b2o$50b4o4b4o$
50bo2bob2obo2bo$54b4o$4b2o15b2o32b2o17b2o15b2o$4bobo13bobo51bobo13bobo
$5bo15bo21bo31bo15bo21bo$9b2o5b2o26bo34b2o5b2o26bo$9b2o5b2o24b3o34b2o
5b2o24b3o!

[Entity Valkyrie 2]

pseudo P26 gun, 115x65:

Code: Select all

x = 115, y = 65, rule = B3/S23
49b2o3b2ob2o$49bo5bobobo$46b2obobo3bobobo22b2o$46bobobob2o3bob2o21b2o$
50bobo2b2obo16b2o12b2o$35bo13bob2o5bo15bo2bo2b6o2bo2bo$34bobo12b2obo5b
3o13b3o2b8o2b3o14bo$34bob3o14bo7bo15b12o16bobo$31b2obo4bo13b2o5b2o14bo
12bo15bob3o$31bobobobobo13bobo19bobo10bobo11b2obo4bo$33bobob2o4b2o6b3o
9b2o10bo2bo8bo2bo11bobobobobo$16bo8b2o5bobo8bo11b3o5b2o8b2obo12bob2o
11bobob2o$14b3o8b2o6bo7bobo12bo17bo16bo4b2o5bobo$6b2o5bo27b2o11bobo17b
ob14obo4b2o6bo$6b2o5b2o39b2o19b2ob10ob2o$81b4o$25b2o3bo34b2o36b2o8b2o$
5bo22b3o33b2o31bo5b3ob2o4b2o$4bobo18b2obo2bo34bo9bo19bobo9b2o$5bo12bo
6b3o3bo10bo32bobo4bo13bo2bo7bo$2b3o14b2o7b2o13b2o30b2o4b3o13bobo$2bo
12bo2b2o4b2o2bo13b2o36b2o2bo12b3o$14b2o7b2o57bo20bo8bo$12bo3b3o6bo12b
2o20bo25b3o12bo2b2o4b3o$12bo2bob2o18bobo15b4obo25bobo13b3o4bo$13b3o22b
o15bo2bob2o17bo7bo2bo13bo4bobo$2o11bo3b2o38bo7b2o9b2o9bobo19bo$2o54b3o
6bobo9b2ob3o5bo$26b2o2b4o5bo27bo13b2o$26bo2b8obobo26b2o31b2o5b2o$10bo
6b2o8b12obo31b2o27bo5b2o$9bobo5b2o5b3o11bobob2o27bobo7bo6b2o8b3o$5b2ob
obo13bo2bo11b2obobo10bo10b2o3bo8bobo5b2o8bo$4bobobobobo12b2o13bobo13b
2o8b2o2b2o4b2obobo$4bo4bob2o4bob2o11b2o4bobobob2o9b2o18bobobobobo$5b3o
bo5b3obobob4o5b2o4b2o2bo5b2o17bo7bo4bob2o$7bobo4bo4bobobo2bo15b2o4bobo
16b2o7b3obo$8bo5bobobobobo12b2o13bo18bo8bobo$15b2obobo13bo2bo11b2ob2o
14bo10bo$19bobo5b2o5b3o11bobob2o8b2o5b3o$20bo6b2o8b12obo10b3o7bo$36bo
2b8obobo11b2o$36b2o2b4o5bo11bo$10b2o$10b2o4bo7bo$14bobo5bob4o20bo19bo$
20bo7b2o17bobo19b2o$20bo4b2ob2o6bo11b2o18b2o$22bo7bo3bo3bo$12bo12bo2b
2o4b2o2bo$12b3o10bo3bo3bo7bo$15bo11bo6b2ob2o4bo$14bobo17b2o7bo30bobo$
15bo20b4obo6b2o25b2o$39bo9b2o24bo$48bo$16b2o5b2o$16b2o5bo27b2o$24b3o8b
2o6bo7bobo27bo$26bo8b2o5bobo8bo28b2o$43bobob2o4b2o26b2o$41bobobobobo$
37b2obobobo4bo$37bob2obobob3o$43b2obo!

[Entity Valkyrie 2]

P102 gun, 41x39:

Code: Select all

x = 41, y = 39, rule = B3/S23
21bo$21b3o7bo$24bo5bobo$23b2o6bo$24b3o$25b4o$4b2o18bo3b2o$5bo19b2o3bo$
5bobo18b4o$6b2o14b3o3bo5b2o2b2o$9b2o23bobo2bo$9bobo8b2obobo10b2o$2b2o
5bo10b2obobo10bo$3bo17bo10b2o4bo$3bobo26bobo2b2o$4b2o10bo17bo2bo$2o10b
obob2o10bo5b3o2bo$bo10bobob2o8bobo8b3o$bobo23b2o7bo$2b2o5bo3b3o20b2o$
8b4o$7bo3b2o9bo$8b2o3bo8bo7bo$9b4o9bo6bobo7bo$11b3o10b2o3bobo7b2o$6bo
6b2o3b3o3b2o4bo7bobo$5bobo5bo$6bo7b3o17bo$16bo16b2o$32b2o$24b2o8bo$24b
o9bo3bo$25b3o9bobo$27bo6bobo2bo$30bo2bobobob2o$30b4ob2o2bo$34bo4bo$30b
2o2bob3o$30b2o3b2o!

[squareroot12621]

P102 gun, 41x39:

Code: Select all

x = 41, y = 39, rule = B3/S23
21bo$21b3o7bo$24bo5bobo$23b2o6bo$24b3o$25b4o$4b2o18bo3b2o$5bo19b2o3bo$
5bobo18b4o$6b2o14b3o3bo5b2o2b2o$9b2o23bobo2bo$9bobo8b2obobo10b2o$2b2o
5bo10b2obobo10bo$3bo17bo10b2o4bo$3bobo26bobo2b2o$4b2o10bo17bo2bo$2o10b
obob2o10bo5b3o2bo$bo10bobob2o8bobo8b3o$bobo23b2o7bo$2b2o5bo3b3o20b2o$
8b4o$7bo3b2o9bo$8b2o3bo8bo7bo$9b4o9bo6bobo7bo$11b3o10b2o3bobo7b2o$6bo
6b2o3b3o3b2o4bo7bobo$5bobo5bo$6bo7b3o17bo$16bo16b2o$32b2o$24b2o8bo$24b
o9bo3bo$25b3o9bobo$27bo6bobo2bo$30bo2bobobob2o$30b4ob2o2bo$34bo4bo$30b
2o2bob3o$30b2o3b2o!

No one noticed this?

Code: Select all

x = 41, y = 39, rule = B3/S23
21bo$21b3o7bo$5b2o17bo5bobo$6bo16b2o6bo$5bo18b3o$5b2o18b4o$24bo3b2o$25b
2o3bo$26b4o$22b3o3bo5b2o2b2o$9b2o23bobo2bo$9bobo8b2obobo10b2o$2b2o5bo
10b2obobo10bo$3bo17bo10b2o4bo$3bobo26bobo2b2o$4b2o10bo17bo2bo$2o10bob
ob2o10bo5b3o2bo$bo10bobob2o8bobo8b3o$bobo23b2o7bo$2b2o5bo3b3o20b2o$8b
4o$7bo3b2o9bo$8b2o3bo8bo7bo$9b4o9bo6bobo7bo$11b3o10b2o3bobo7b2o$6bo6b
2o3b3o3b2o4bo7bobo$5bobo5bo$6bo7b3o17bo$16bo16b2o$32b2o$24b2o8bo$24bo
9bo3bo$25b3o9bobo$27bo6bobo2bo$30bo2bobobob2o$30b4ob2o2bo$34bo4bo$30b
2o2bob3o$30b2o3b2o!

[GUYTU6J]

pseudo P26 gun, 115x65...

The p4 sparker for the 180-degree 22hd reflector seems to be optimized for southwest clearance, but in this case we need clearance in the north. A simple replacement saves two rows at the top.

Code: Select all

x = 14, y = 15, rule = LifeHistory
2A$.A8.A$.A.AB5.3A$2.2AB.2A5.A$4.2B.A4.2A$4.B2A$5.3AB$7.2A$6.B2AB$2.
2A3.2B$2.A2.BAB$3.3A.A$6.A$3.3A$3.A!

---
Here are my original contents for my 2000th post milestone.
gun_1656 is now 1508 cells by opting for a longer but thinner twin bees shuttle stabilization. There is even just enough corner space for a <s>Rarity's</s> Charity's p16 to double its period!

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH gun_3312 costs 1508 cells.
#C period 3312 fullperiod 3312 bbox 52 by 29
#CLL state-numbering golly
x = 52, y = 29, rule = LifeHistory
24.4B3.B.9B.B3.4B$24.4B.3B4A10B.4B$23.2A6B2A2BA14B2A$23.2A5B2A2BA
15B2A$24.B.5BA2BA14B.B$26.6B2A15B$5.2B8.2B6.3B.B.3B$4.4B6.4B5.9B2A
15B$3.16B.11BA2BA14B.B$3.10BA16B2A2BA15B2A$4.8BA5B.12B2A2BA14B2A$
2.7B2A4B3A14B4A10B.4B$.6B2A2BA6BA7B.B.3B.9B.B3.4B$2.6B2A4B2ABA6B$
3.12BABAB2.4B$3.2A11BA2B3.4B12.2A$3.2A5B2.3B2A2B4.4B10.B2A2B$4.5B
4.2B2AB6.4B10.4B2.2B$4.3B8.3B7.4B7.6B2.3A$4.A12.A8.4B6.2B2AB.BA3B$
3.A2B10.2BA8.4B4.2BABA3BA3BA$2.A.3BA6.A3B.A8.4B3.B2A3B2.A2BA.A$2.
3A3BA4.A3B3A9.5B.6B4.A.A2BA$2A2.2B3A4.3A2B2.2A8.5B2.B.2B5.A3BAB$.A
.A14.A.A10.4B3.2BAB5.3BAB$.A.6A4.6A.A11.4B3.A.A5.3A$2.A5.A4.A5.A
13.3BA3.A7.2B$3.3A10.3A15.3BA$5.A10.A18.3AB!

Can the p6 thumbs be optimized for southern clearance?
---
Similar to gun_1530 (=lcm(45,102)) in 2365 cells...

Code: Select all

x = 55, y = 43, rule = LifeHistory
36.2A$36.A$37.3A$39.A$40.3B$15.4B16.9B$15.4AB9.4B.11B$14.A4BA7.18B$
14.A2B.A.AB4.18B$15.A3.ABAB3.18B$20.BAB3.19B$19.2BAB2.5BA14B$18.A2BAB
.5B2A15B$19.2A2.3B2A10BA7B2.2A$23.2B4A5BAB2ABA5B.2B2AB$24.A3BA3B2ABA
4BA3B2.4B$24.BAB2A5BA2B2AB2AB3.3B$25.2BA9B2AB2AB3.B3A3.B$25.13BAB2AB
4.2A.A.B2A$23.16BA2B7.2A2B2A$22.13B.4B9.2A3B$22.13B15.4B$23.7B2.B$9.
2A12.7B3.4B$8.B2AB12.5B4.3BAB$2.2B5.2AB13.3B4.4ABA$5B.2B2.A2.2B2.2B.
3B.4B4.3A.A.AB$9B3A16B5.B3.ABAB$.7B2AB2A16B9.A2B$.6B2A3B2A11B.4B7.2A
2B$2.6B2AB2A11B3.4B5.B2A2B$2.21B5.4B5.2A$.AB2.15B9.4B$A.A7.5B15.4B$2A
8.2B.2B16.4B$8.6B18.4B$6.BA6BAB17.4B$4.2B2A6B2A2B16.4B$3.2B3A6B3A2B
16.4B$4.2B2A6B2A2B18.4B$6.BA6BAB21.3BA$8.6B24.3BA$10.2B27.3AB!

... here is gun_360 (=lcm(45,24)) from 1480 (period-nonupled p40) to 1380 cells:

Code: Select all

x = 46, y = 30, rule = LifeHistory
25.AB11.2A$24.B2A11.A.A$24.2ABAB11.A$23.A2B3A4.2A4.2A.2A.A$22.A.ABAB
5.A.A3.A.BA.2A$20.BABA.A8.BAB.2AB$19.3A2BA8.AB5A2B$19.BAB2A9.3A.2BA2B
$21.2AB2.4B.B2A5B.AB$21.BA3BA5B3AB2.B2AB$9.2A13.2BABA3B2A5B.AB$8.B2AB
12.2BA5B.3A.2BA2B$2.2B5.2AB13.5B3.AB5A2B$5B.2B2.A2.2B2.2B4.5B6.BAB.2A
B$9B3A16B5.A.A3.A.BA.2A$.7B2AB2A16B4.2A4.2A.2A.A$.6B2A3B2A11B.4B10.A$
2.6B2AB2A11B3.4B7.A.A$2.21B5.4B6.2A$.AB2.13B.B9.4B$A.A7.5B15.4B$2A8.
2B.2B16.4B$8.6B18.4B$6.BA6BAB17.4B$4.2B2A6B2A2B16.4B$3.2B3A6B3A2B16.
4B$4.2B2A6B2A2B18.4B$6.BA6BAB21.3BA$8.6B24.3BA$10.2B27.3AB!

---
Previously I reduced gun_828 (=lcm(46,36)) from 2255 to 2070 cells with a sparker from this post:

Code: Select all

x = 69, y = 30, rule = LifeHistory
24.2A4.2B4.2A$23.A2.A.6B.A2.A$23.3A2.6B2.3A$26.10A$25.A2.6A2.A$25.2A.
B4AB.2A$20.2A8.2B$19.A2.A7.B$19.A.A.BA3.3B5.A2.2B23.2A$20.A.2BAB.5B2.
A3B4A22.A.A$22.B.A.3BA4BA3BA.B24.AB$21.A2B3.2AB2A2.A.B7.4B3.B.9B2.2B$
11.2A9.2A3.5B3.2BA6.4B.11BA7B$10.A2.A14.3A4.2A6.2A15B2A5B2A$10.A.A2.B
7.B5.3B11.2A16B2A4B2A$11.A.2B2A4.5B.5B12.B.10B2A2B2A4B.B$12.2A.AB3.
17B9.19B$12.BAB4.B3A16B4.3B.A.3B$13.A5.2AB2A17B2.2B5A15B$10.B3.B4.2A
2BA20BA2BAB2A5B2A2B2A4B.B$8.13B2A14B2.4BA7BA9B2A4B2A$5.11B2A13B2.2B5.
4BA2BAB2A9B2A5B2A$4.11BA2B2A4.B3.B4.3B5.4B5A10BA7B$4.11B2AB2A5.A6.B2A
B6.4B.A.3B.9B2.2B$4.12B3AB4.BAB6.2A8.4B18.AB$2.2AB.13B3.BA.2A17.4B16.
A.A$.A.AB4.9B4.2A2B.A17.4B15.2A$.A13.B7.B2.A.A17.3BA$2A23.A2.A18.3BA$
26.2A20.3AB!

Today I can reduce gun_552 (=lcm(46,24)) from 1470 (period-tripled p184) to 1215 cells:

Code: Select all

x = 45, y = 27, rule = LifeHistory
3.2A9.2A$4.A9.A$3.A11.A$3.2A9.2A$4.B.B2AB2AB.B$.3A.A7BA.3A$A2.2A3B.A.
3B2A2.A$2A3.B7AB3.2A$6.ABA.ABA$5.2B.A.A.2B$4.3A5B3A27.2A$3.A.ABA3BABA
.A25.B2A$3.2A.B5AB.2A3.4B3.B.9B.B2.B$8.3B8.4B.2BA3B2A12B$8.4B6.2A4B2A
BAB3A11B2A$9.3B6.2A4BA4B3A11B2A$8.B3AB6.B.3BA3BA13B.B$2.2B4.5B8.4B3A
14B$2.3B3.5BA4.3B.B.3B$2B2AB3.2BA2BA2B2.7B3A14B$2B2ABA3.2BABA10BA3BA
13B.B$.4B.A2.3B2.10BA4B3A11B2A$3.A.5B5.9B2ABAB3A11B2A$4.AB2A2B6.10BA
3B2A12B$5.B2A2B7.3BA.B.3B.9B.B2.B$5.3B10.3BA19.B2A$6.2B11.3AB19.2A!

The guns in my recent two posts in this thread may be called "LCM guns", analogous to the spark-coupled "LCM oscillators". See how they tend to be compact, sometimes even more so compared with period-multiplied small guns? This is not unprecedented: the good old period-690 glider gun is an early example of an LCM gun. More related ideas:

• For p30n, David Bell invented an elegant mechanism in 1995 (per this post) that only gives an output glider for exact one phase-aligned input. The modern version of this mechanism is shown below. Examples: gun_1290 (=lcm(30,43)), gun_1560 (=lcm(30,104)), gun_2730 (=lcm(30,91)).

  Code: Select all

  x = 50, y = 38, rule = B3/S23
  26bo$26bobo$14b2o11bobo7bo$14b2o11bo2bo6b2o$27bobo2b2o4b2o8b2o$11b2o
  13bobo3b2o4b3o7b2o$11b2o13bo5b2o4b2o$37b2o$11b4o22bo$11bo3bo2b2o5bo$
  14b2o2b2o4bo$24b3o19b2o$46b2o$33b2o$29bob4o$27b3o2bobo2$22bobo4b2o$23b
  2o5bo$23bo2$b2o$obo$2bo40b2o3b2o$19b3o8bo14b3o$18bo3bo8b2o11bo3bo$17bo
  5bo6b2o13bobo$18bo3bo23bo$19b3o$19b3o19b2o$39bo2bo$26bobo9bo7b2o$26bo
  3bo7bo6bo2bo$20b2o8bo7bo7b2o$19bo2bo3bo4bo7bo2bo$20b2o8bo10b2o$26bo3bo
  $26bobo!
  

  See also p930 (=lcm(30,31)), p870 (=lcm(30,29)), p390 (=lcm(30,13)) and gun_1410 (=lcm(30,47)).
• The Kazyanic filter is available at p5, p7, p8 (figure eight not shown), p9 and p22. Examples: gun_616 (=lcm(88,7)), gun_830 (=lcm(166,5)), gun_2838 (=lcm(129,22)), gun_2277 (=lcm(253,9)).

  Code: Select all

  x = 176, y = 23, rule = B3/S23
  7b2o11b2o25b2o11b2o9b2o24b2o11b2o25b2o11b2o$8bo11bo2b2o23bo11bo2b2o2b
  2o2bo2bo23bo11bo2b2o2bo20bo11bo2b2o$8bobo10b2ob3o21bobo10b2ob4obobob2o
  23bobo10b2ob4o20bobo10b2ob3o$9b2o16bo21b2o18bo2bo4bo21b2o17b2o19b2o16b
  o$21b2ob3o34b2ob4obo3b5o33b2ob4o2bo30b2ob3o$21b2obo36b2obo3bo42b2obo3b
  obo30b2obo$66bo4bo3b3o39b2o2b2o$65b3o2bobobo3bo40bobo$25bo2b2o34bo5b3o
  b5o38b3o2bo$25b2o2bo35b3o2b2o3bo3b2o35bo3bobo$9bo14b5o20bo14b2o2b3o5b
  2obo19bo15bob3obo17bo$9bobo37bobo15bob2o6bo2bo18bobo13bo3bo19bobo32b2o
  $9b3o37b3o15bob2o6bo3bo17b3o13bo3bo19b3o15bo16bo$11bo12b5o22bo12b2o2b
  3o5b2obobo19bo13bob3obo19bo14b3o13bobo$25b2o2bo35b3o2b2o3bo3b2o35bo3bo
  bo32b3obo7b2o3b2o$25bo2b2o34bo5b3ob5o38b3o2bo31b3o2bo6b4o$65b3o2bobobo
  3bo40bobo33b4o6bo2b3o$66bo4bo3b3o39b2o2b2o28b2o3b2o7bob3o$2b2o38b2o20b
  o3bo23b2o24bobo11b2o16bobo13b3o$3bo39bo20b5o5bob2o15bo24bobo12bo16bo
  16bo$3o37b3o31b2obo12b3o26bo10b3o16b2o$o39bo25b2obo20bo39bo$66bob2o!
  

As for now, I am looking for a collection of small edgy banana sparkers that produces 3o2$o! or 3o2$b2o!, and another collection of small edgy duoplet or domino sparkers.

[iNoMed]

correction on the p26 gun build: it can go flush with the fishhook.

Code: Select all

x = 117, y = 60, rule = B3/S23
35bo13b2o7bo$34bobo5b2o4bo4bo4b3o$34bob3o3bo5bobobob2o5bo$31b2obo4bo3b
o3b2obo3b2o4b2o$31bobobobobo2b2o2bo3b3obo49bo3b2o$33bobob2o4bobo2b2o4b
o22b2o4b2o18bobobob3o$16bo8b2o5bobo8bo2b2o2bob3o7b3o11bobo4b2o18bobobo
4bo$14b3o8b2o6bo7bobo4b2o3b2o6bo3bo10bo13b2o12bobobobobo$6b2o5bo27b2o
3b2o2bob3o5bo5bo6b2ob2o2b2o5bobo2bo13bobob2o$6b2o5b2o30bo2b2o4bo5bo5bo
7bobo13b3o5b2o5bobo$32b2o12bo3b3obo5bo5bo7bobob4o6b2o8b2o6bo$26bo5b2o
2b2o9b2obo3b2o5bo3bo7b2obobo3b6o2bo$5bo19bobo7bobo10bobobob2o6b3o12bo
11b2o$4bobo18bo2bo8bo10bo4bo49bo11b2o$5bo4b3o13b3o20b2o51bobo10b2o$2b
3o5bo2bo13bo50bo26bo$2bo7bobo18bobo43bobo22bobo$16bo13bo2bo27bo15b2o
18bo$15b3o13b3o4b2o20bobo9b2o22bobo3bo$6bo8bo2bo18bobo20bobo9bobo18b4o
17bo$6bobo7bobo19bo10bo11bo10bo14bo3bobo18b3o$2o4b2o2b2o5bo29bobo15b2o
25bo18bo$2o8b2o36b2o15bobo17bobo22bobo$26b2o11bo27bo16bo26bo$26bo2b6o
3bobob2o23b2o16bobo$10bo6b2o8b2o6b4obob2o14bo27bo$9bobo5b2o5b3o13bo15b
obo43b2o5b2o$5b2obobo13bo2bobo5b2o2b2o16b2o7b2o6b2o27bo5b2o$4bobobobob
o12b2o13bob2o22b2o5bobo7bo6b2o8b3o$4bo4bob2o4b2o3bo9b2o4bobobo30bo8bob
o5b2o8bo$5b3obo5b3obobobo8b2o4b2o2bo5b2o22b2o4b2obobo$7bobo4bo4bobobo
18b2o4bobo17bo8bobobobobo$8bo5bobobobobo12b2o13bo16bobo7bo4bobobo$15b
2obobo13bo2bobo5b2o2b2ob2o8bo5bo9b3obobobo$19bobo5b2o5b3o13bob2o6bobo
6b3o8b2o3bo$20bo6b2o8b2o6b4obo10b2o8bo$36bo2b6o3bobo$36b2o11bo$10b2o
10b2o$10b2o9bo2bo43bo$20b2ob2o23bo20bo$21bobo23bobo17b3o$22bo25b2o4b2o
$53bobo$12bo42bo$12b3o$15bo25bo33bo$14bobo23bobo30bobo$15bo23b2ob2o30b
2o$39bo2bo$40b2o$16b2o5b2o$16b2o5bo27b2o28bo$24b3o8b2o6bo7bobo28bo$26b
o8b2o5bobo8bo26b3o$43bobob2o4b2o$41bobobobobo$40bobobo4bo$40bobobob3o$
41bo3b2o!

[Kazyan]

gun_26 reduced to 116x59 via some tomfoolery:

Code: Select all

x = 116, y = 59, rule = B3/S23
31bo3b2o22bo18b2o4bo2b2ob2ob2ob2o$30bobobob3o5b2o4b3o6b3o16bo4bobo2bob
o3bobo10bo$30bobobo4bo5bo2b5o2b2o5bo16bo2bo2b2obo2bobo2bo9bobo$31bobob
obobo5bobo8bo4b2o13b4o2bobo2bo2b2obobo10bob3o$33bobob2o4b2obo2bo4b2o9b
o10bo3b2o3bo7b2o8b2obo4bo$16bo8b2o5bobo8bo2bobo5b3o7bo14bo2b2o3bo2b2o
11bobobobobo$14b3o8b2o6bo7bobob2obobo5b2o6b2o4bo8bobo6bo2bob2o10bobob
2o$6b2o5bo27b2obo4b2o5b2o12b2o7bo9b2o2bo3b2o5bobo$6b2o5b2o29bo6b2o17bo
8bobo11bo3b2o6bo$44b2o5bo3bo12b3o10b12o$25b3o24b3obo11b2o17b2obo11b3o$
5bo14b2obo2b2o13bo13bo45bo3bo8b2o$4bobo11b5obob2o2b3o6bobo10b3o9b2o34b
o5bo7b2o$5bo11b4obo17b2o10bo10b3o11bo22bo5bo$2b3o12b2o3bo2bo37b2o4b2o
5bobo21bo5bo$2bo15b2o4b2o43bobo4b2o23bo3bo$18bo2bo3b2o42bo32b3o$21bob
4o11b2o73bo$11b3o2b2obob5o11bobo23b2o18b3o25b3o$16b2o2bob2o14bo22b2ob
2o16bo3bo23bo$2o14b3o42bo2b2o15bo5bo21bobo$2o59bobob3o13bo5bo22bo$26b
2o11bo22bo3bobo12bo5bo$26bo2b6o3bobo27bo13bo3bo$10bo6b2o8b2o6b4obo13bo
13b2o13b3o15b2o5b2o$9bobo5b2o5b3o13bob2o8bobo18b2o27bo5b2o$5b2obobo12b
o3bobo5b2o2b2ob2o9b2o17bobo7bo6b2o8b3o$4bobobobobo9bob3o13bo26b2o3bo8b
obo5b2o8bo$4bo4bob2o6bobobo8b2o4bobo26b2o2b2o4b2obobo$5b3obo7b3obobob
4o3b2o3bobo4b2o4b2o11bo12bobobobobo$7bobo6bo4bobobo2bo8bo6b2o4bobo8bob
o12bo4bob2o$8bo8bob2obobo13bo13bo9b2o5bo7b3obo$18bo3bo12bo3bobo5b2o2b
2ob2o12bobo8bobo$19bo2b2o5b2o4b4o13bob2o13bo10bo$21bobo5b2o8b2o6b4obo
17b3o$35b2obo2b6o3bobo19bo$21bo13b2ob2o11bo$12b2o7bo2bo42bo$12b2o8b2o
5bo29b2o4bobo$18b2o9bo20bo7bobo5b2o$19bo6b2obo19bobo8bo$19bo2bo5bo21b
2o$21b2o19bobo$14bo7bobobo14bobobo27bo$14b3o6bobo19b2o27bo$17bo21bo5bo
2bo23b3o$16bobo19bob2o6bo$17bo20bo9b2o$38bo5b2o$43bo2bo$18b2o5b2o19bo
33bo$18b2o5bo27b2o23bobo$26b3o8b2o5bobo6bobo23b2o$28bo8b2o5b2o2bo6bo$
45bo3bo5b2o$43bobob2obo$39b2obobobo4bo34bo$39bob2obobob3o36bo$45b2obo
36b3o!

[Sokwe]

gun_26 reduced to 116x59 via some tomfoolery:

Nice! Here is the stator minimization:

Code: Select all

x = 116, y = 59, rule = B3/S23
31bo3b2o22bo18b2o4bo2b2ob2o$30bobobob3o5b2o4b3o6b3o16bo4bobo2bobo16bo$
30bobobo4bo5bo2b5o2b2o5bo16bo2bo2b2obo2bo14bobo$31bobobobobo5bobo8bo4b
2o13b4o2bobo2bo2b2o14bob3o$33bobob2o4b2obo2bo4b2o9bo10bo3b2o3bo6b2o9b
2obo4bo$16bo8b2o5bobo8bo2bobo5b3o7bo14bo2b2o3bo2b2o2bo8bobobobobo$14b
3o8b2o6bo7bobob2obobo5b2o6b2o4bo8bobo6bo2bob2o10bobob2o$6b2o5bo27b2obo
4b2o5b2o12b2o7bo9b2o2bo3b2o5bobo$6b2o5b2o29bo6b2o17bo8bobo11bo3b2o6bo$
44b2o5bo3bo12b3o10b12o$25b3o24b3obo11b2o17b2obo11b3o$5bo14b2obo2b2o13b
o13bo45bo3bo8b2o$4bobo11b5obob2o2b3o6bobo10b3o9b2o34bo5bo7b2o$5bo11b4o
bo17b2o10bo10b3o11bo22bo5bo$2b3o12b2o3bo2bo37b2o4b2o5bobo21bo5bo$2bo
15b2o4b2o43bobo4b2o23bo3bo$18bo2bo3b2o42bo32b3o$21bob4o11b2o73bo$11b3o
2b2obob5o11bobo23b2o18b3o25b3o$16b2o2bob2o14bo22b2ob2o16bo3bo23bo$2o
14b3o42bo2b2o15bo5bo21bobo$2o59bobob3o13bo5bo22bo$26b2o11bo22bo3bobo
12bo5bo$26bo2b6o3bobo27bo13bo3bo$10bo6b2o8b2o6b4obo13bo13b2o13b3o15b2o
5b2o$9bobo5b2o5b3o13bob2o8bobo18b2o27bo5b2o$5b2obobo13bo2bobo5b2o2b2ob
2o9b2o17bobo7bo6b2o8b3o$4bobobobobo7bo4b2o13bo26b2o3bo8bobo5b2o8bo$4bo
4bob2o6bobo10b2o4bobo26b2o2b2o4b2obobo$5b3obo7b3obo10b2o4b2o4b2o4b2o
11bo12bobobobobo$7bobo6bo4bob2o19b2o4bobo8bobo12bo4bob2o$8bo8bob2obobo
27bo9b2o5bo7b3obo$18bo3bo15b2obo5b2o2b2ob2o12bobo8bobo$19bo2b2o5b2o7bo
13bob2o13bo10bo$21bobo5b2o8b2o6b4obo17b3o$36b3o2b6o3bobo19bo$21bo14bo
2bo11bo$12b2o7bo2bo12b2o28bo$12b2o8b2o5bo29b2o4bobo$18b2o9bo20bo7bobo
5b2o$19bo6b2obo19bobo8bo$19bo2bo5bo21b2o$21b2o19bobo$14bo7bobobo14bobo
bo27bo$14b3o6bobo19b2o27bo$17bo21bo5bo2bo23b3o$16bobo19bob2o6bo$17bo
20bo9b2o$38bo5b2o$43bo2bo$18b2o5b2o19bo33bo$18b2o5bo27b2o23bobo$26b3o
8b2o5bobo6bobo23b2o$28bo8b2o5b2o2bo6bo$45bo3bo5b2o$43bobob2obo$42bobob
o4bo34bo$42bobobob3o36bo$43bo3b2o36b3o!