Oscillator Discussion Thread

[hotdogPi]

Are there any oscillators that place a block in a certain place if there isn't one and do nothing if it's already there? I know 674/2 is prime and it would increase the period and possibly make it trivial, but it would reduce the size significantly.

[MathAndCode]

Are there any oscillators that place a block in a certain place if there isn't one and do nothing if it's already there? I know 674/2 is prime and it would increase the period and possibly make it trivial, but it would reduce the size significantly.

I know that there is an example where a pair of twin bees creates a region that emits a spark that deletes a block if one is present in a certain location then places a block in that location. However, using these would make the period 15,502, not 674, because the total period would have to be a multiple of the period of the block keeper reaction, which is 46. Also, a glider from the other side hitting the block would result in an unwanted pi-sequence.
In general, a reaction can only be supported by an oscillator whose period is a fraction of the reaction's period (with still lives counting as oscillators of period one for this purpose). (There are occasionally rephasing reactions, but those are rare and hard to search for except when the oscillator being rephased is extremely small.) This is the reason why of the four remaining periods for which we do not have non-trivial oscillators, two are prime, and the other two are semiprimes whose prime factors are two, which is too small of a period to have powerful sparkers, and a prime number for which we do not have any sparkers. It's certainly not due to lack of partials.

[dvgrn]

Are there any oscillators that place a block in a certain place if there isn't one and do nothing if it's already there? I know 674/2 is prime and it would increase the period and possibly make it trivial, but it would reduce the size significantly.

There certainly are such oscillators, and they don't have to increase the period of the pattern -- it will still be 674, whether you add p337 block keepers or p674 block keepers.

Here there even happens to be a way to let the key glider escape in the gap between the "optional delete" and "restore" operations of the block keeper mentioned in the LifeWiki article. A p674 block keeper is on the left, and a p337 block keeper is on the right:

Code: Select all

x = 172, y = 161, rule = LifeHistory
77.2A3.2A$75.3A.A2.2A$74.A4.A$47.2A3.2A20.A2.2A.4A$47.2A2.A.3A17.2A.A
.A.A2.A$51.A4.A17.A.ABABAB$47.4A.2A2.A17.A.AB2AB$47.A2.A.A.A.2A17.AB.
2B$49.BABABA.A21.3B$50.B2ABA.A21.4B6.2A$51.2B.BA20.3B2AB6.A$50.3B23.
3B2AB3.BA.A$41.2A6.4B21.10B.B2A$42.A6.B2A3B18.13B$42.A.AB3.B2A3B17.
14B$43.2AB.10B14.15B$45.13B12.4B2.8B$45.14B10.4B5.6B$45.15B8.4B4.9B$
47.8B2.4B6.4B5.2A4.4B$47.6B5.4B4.4B7.A5.4B$46.9B4.4B2.4B5.3A7.4B$27.
2A16.4B4.2A5.8B6.A10.4B$20.2A3.2B2AB14.4B5.A7.6B19.4B$19.B2AB2.4B14.
4B7.3A5.4B21.4B$20.2B3.6B.B9.4B10.A4.6B21.4B$21.2B2.10B6.4B15.8B21.4B
$20.2B2A11B5.4B4.A10.4B2.4B21.4B$17.B.3B2A12B3.4B5.3A7.4B4.4B21.4B$
16.2A18B2.4B9.A5.4B6.4B21.4B$16.2AB.15B2.4B9.2A4.4B4.A3.4B21.4B$17.B
3.19B10.9B4.A.A3.4B21.4B8.A$21.18B13.2B2A2B5.A.A4.4B14.2A5.4B5.5A21.
2A3.2A$22.19B2.2B2.B3.6B5.2A.2A4.4B11.A2.A5.4B4.A5.A20.2A2.A.3A$22.
28BABA3BA4.A2.A2.A4.4B10.2A.A.AB.7B2.B3A2.A24.A4.A$23.7B.20B2A5B3.B2A
2.2A5.4B11.A.2AB.7B3.2B.A.2A19.4A.2A2.A$23.6B2.21B2A4BA4B11.4B10.A3.
12B4A2.A19.A2.A.A.A.2A$22.7B.23B2A3B3AB13.4B7.3A3.7B2A3BAB2.2A22.BABA
BA.A$22.6B.23B2A4BA2B15.4B5.A6.7B2A2B.B3A25.B2ABA.A$23.9B7.2B.B.7B2A
8B16.4B4.2A5.10B3.B.A26.2B.BA$23.8B7.3B4.5BABA3BA3B18.9B4.8B8.A.2A22.
3B$22.8B4.2A.2BA5.5B2A8B19.6B5.9B7.2A.2A13.2A6.4B$22.7B5.A.2BA.A5.5BA
2B2A3B20.8B2.4B2.3B27.A6.B2A3B$13.2A6.7B7.A2.BA.A2.8B3A2B20.15B3.5B
25.A.AB3.B2A3B$14.A6.7B8.A3.A.A.2A4.3BA4B19.14B7.2A26.2AB.10B$14.A.AB
2.8B6.A.4A2.AB2A6.6B19.13B8.A29.13B$15.2AB2.8B5.A.A3.A.A2.B8.5B17.2AB
.10B10.3A26.14B$16.12B5.A.A2.A2.2A.2A9.B.B16.A.AB3.B2A3B14.A26.15B$
16.12B6.A3.2A2.A.A9.3B17.A6.B2A3B43.8B2.4B$16.12B14.A.A9.B2AB15.2A6.
4B45.6B5.4B$16.12B15.A11.2A25.3B44.9B4.4B$16.11B56.2B.BA40.4B4.2A5.4B
$16.12B54.B2ABA.A38.4B5.A7.4B$16.12B53.BABABA.A28.A8.4B7.3A5.4B13.A$
17.13B49.A2.A.A.A.2A25.5A5.4B5.3A2.A6.4B10.3A$19.13B47.4A.2A2.A25.A5.
A4.4B5.A2.A9.4B8.A$16.17B50.A4.A25.A2.3AB2.7B.BA.A2.2A9.4B7.2A$15.18B
46.2A2.A.3A25.2A.A.2B3.7B.B2A15.4B3.5B$14.2B2A13B.B2A44.2A3.2A27.A2.
4A12B18.4B2.3B$15.B2A6B.4B3.BA.A78.2A2.BA3B2A7B19.9B7.2A.2A$8.2A4.8B
4.B8.A80.3AB.2B2A7B20.8B8.A.2A$9.A4.6B15.2A79.A.B3.10B21.7BA2B3.B.A$
9.A.AB.7B92.2A.A8.8B20.8BA2B.B3A$10.2AB2.6B92.2A.2A7.9B19.3BA4BA3BAB
2.2A$12.8B106.3B2.4B18.4B2ABA4B4A2.A$12.8B104.5B3.4B15.2AB.2BA4B3.2B.
A.2A$13.8B103.2A7.4B13.A.AB.7B2.B3A2.A$14.7B8.A95.A8.4B12.A5.4B4.A5.A
$15.6B6.3A92.3A10.4B10.2A5.4B5.5A$15.7B4.A95.A13.4B15.4B8.A$11.B3.7B
4.2A109.4B13.4B$10.3B2.8B.4B11.B98.4B11.4B$10.4B.11B12.2B99.4B9.4B$
10.4B.12B10.B2A100.4B7.4B$7.20B9.2BAB101.4B5.4B$6.9B.11B.4B3.BABA97.
2A4.4B3.4B$6.10B3.14B.2B2A4.2A92.A.A4.4B.4B$6.31B3.2BAB94.3A3.7B$5.
31B3.BABA94.A3.A3.5B$4.31B3.2B2A94.A.3A4.5B$3.38B94.BA.A5.7B$2.2A36B
94.3BA5.4B.4B$.A.AB.33B93.4B6.4B3.4B$.A.B3.32B.2B88.6B5.4B5.4B$2A6.B
2.3B.26B2A86.7B4.4B7.4B$11.4B2.22B.B2A79.B.4B.8B2.4B9.4B8.A$11.B2AB2.
23B.B79.2AB.17B4.2A5.4B5.5A$3.2A6.B2A21B86.2A18B6.A5.4B4.A5.A$4.A7.
21B89.2B.16B6.A.AB.7B2.B3A2.A$4.A.AB3.21B93.16B7.2AB.7B3.2B.A.2A$5.2A
B4.20B8.2A84.15B9.12B4A2.A$7.3B2.21BA6.A10.A75.12B.B2A7.7B2A3BAB2.2A$
7.4B.18B2.A.A6.A7.3A75.11B2.BA.A6.7B2A2B.B3A$8.21B4.2A5.2A6.A79.10B5.
A6.10B3.B.A$9.21B8.3B7.2A78.6B2A2B5.2A4.8B8.A.2A$10.20B7.5B.7B78.6B2A
3B9.9B7.2A.2A$11.19B7.13B78.10B9.4B2.3B$12.17B8.14B73.A.2AB.8B8.4B3.
5B$13.15B7.17B4.2A64.3AB2AB3.7B6.4B7.2A$14.13B6.18B5.A37.BA25.A4.B6.
6B5.4B8.A$14.12B6.20B.BA.A29.2A5.3A26.3A.2A4.6B5.4B10.3A$15.10B7.20B.
B2A29.B2AB3.A2B29.2A2.A4.5B4.4B13.A$16.8B5.25B32.3B2.B2AB32.A.A.8B2.
4B$17.7B4.26B31.B.B2.4B3.BA2B22.A.2A.A.A8B.4B$17.7B.28B32.8B3.3AB23.
2A.A.BA2B.6B3AB$17.37B31.7B3.A3B27.A2.2B2.8BA$18.36B31.7B2.B2AB12.A
15.2A.B3.7BA$18.B.34B31.7B.4B13.3A11.2A2.A.A2.8B.2B$18.36B24.2A4.12B
17.A9.A2.A2.2A2.13B$18.B.36B22.A.A3.11B17.2A10.2A7.13B$21.36B3.B18.AB
2.13B16.4B17.14B$22.B2.32B2.3B18.17B17.3B15.14B$20.42B18.8B2A7B16.4B
14.4B2.10B$20.43B.B10.3B.10B2A6B6.2A8.5B12.4B2.11B.B$19.2A43B2A8.14BA
8B6.A8.6B11.4B.14B2A$19.2A43B2A7.23B4.BA.A8.8B.27B2A$19.46B7.27B.B2A
8.38B$23.42B6.30B11.37B$23.3B2.32B2.B7.31B12.32B$24.B3.36B3.33B12.31B
2A$29.5BA30B.35B11.19B2.2B2.6B2AB.B$31.2BA69B8.18B10.8B2A$31.3BA30B.
40B2.2B.16B14.4B.B2A$31.34B2A35BA22B17.2B3.B$31.34B2A28B.4BABA13B.8B
16.2B$32.B2A25B2.33B.4B3A9B2A2B.10B13.B2AB$31.2BA2BA20B6.5B.15B3.8B.
4BA11B2A2B2.7B2A14.2A$31.3B3A19B8.4B2.9B.3B4.9B.18B10.A$29.2AB.2BA17B
12.4B2.7B3.B3.2B.10B6.4B.3B.B12.3A$28.A.AB.20B13.4B14.2A14B5.3B20.A$
28.A5.18B15.4B13.2A15B5.4B$27.2A4.17B18.4B13.17B6.2A$34.14B21.4B15.
13B7.A$35.13B22.4B14.10B11.3A$35.7B.5B23.4B12.11B13.A$35.2A7.3B25.4B
12.10B$36.A6.2A28.4B12.8B$33.3A7.A30.4B12.4B$33.A10.A30.4B10.4B$43.2A
31.4B8.B2AB$77.4B9.A$78.4B5.3A$79.4B4.A$80.4B$81.4B$82.4B$83.4B$84.4B
$85.4B$86.4B$87.4B$88.4B$89.4B$90.4B$91.4B$92.4B$93.4B$95.2A$95.A$96.
3A$98.A!

There are quite a few other block-keeper reactions known, but this one has better clearance than most so it tends to be useful more often.

[MathAndCode]

Edit 6: Completed!

It can hassle a traffic light predecessor.

Code: Select all

x = 24, y = 207, rule = B3/S23
10b3o$10b3o$11bo2$11b2o$9bo4bo2$9bo4bo$9bo4bo$9b2o2b2o$8bobo2bobo$5bo
3b2o2b2o3bo$4bo2b2o2b2o2b2o2bo$4b3o4b2o4b3o$7bo8bo$2b4ob2o6b2ob4o$2bo
2bobob2o2b2obobo2bo$3bo16bo$3o5bo6bo5b3o$o2b3o2bo2b2o2bo2b3o2bo$2bo2b
o2bo6bo2bo2bo$3bo4bob4obo4bo$3o5bo6bo5b3o$o5bo2b6o2bo5bo$5b4obo2bob4o
2$4bob4ob2ob4obo$2b3obo2b2o2b2o2bob3o$bo5b2o6b2o5bo$2b4obo8bob4o$4bo2b
ob2o2b2obo2bo$6bob3o2b3obo$4bobo4b2o4bobo$3bobobob6obobobo$3bobobo3b2o
3bobobo$2b2obo3b6o3bob2o$3bob2o2b2o2b2o2b2obo$bo2bo14bo2bo$b2obob2ob2o
2b2ob2obob2o$4bob2ob6ob2obo$b2obob2o3b2o3b2obob2o$2bobobo10bobobo$2bo
bob2obo4bob2obobo$3bobo4bo2bo4bobo$5bo2b8o2bo$5bobobo4bobobo$4b2o2bo6b
o2b2o$3bo2b2ob2o2b2ob2o2bo$3b3obobo4bobob3o$6bo10bo$3b2o2bobo4bobo2b2o
$3bo16bo$bobo3bo8bo3bobo$b2o4b3o4b3o4b2o$9b2o2b2o2$4b2obo2bo2bo2bob2o
$4bo14bo$5b4obo2bob4o$10b4o$5b5o4b5o$4bobo2bob2obo2bobo$2o2bo3b2ob2ob
2o3bo2b2o$obobo2b2o6b2o2bobobo$2bobob3ob4ob3obobo$b2obob2o3b2o3b2obob
2o$4bo5b4o5bo$4b2o2bo6bo2b2o$5bo2bo6bo2bo$2b3o14b3o$2bo2b3o3b2o3b3o2b
o$3b2o4bo4bo4b2o$5b2ob2o4b2ob2o$5bo3bo4bo3bo$6b4o4b4o$3b3o4b4o4b3o$3b
o2bo2b6o2bo2bo$6bobo6bobo$7bobo4bobo$10bo2bo$5b5ob2ob5o$4bo4b2o2b2o4b
o$4b2o2bo6bo2b2o2$8bo6bo$7bobo4bobo$10bo2bo$7bo2bo2bo2bo2$7bo8bo$6bo2b
2o2b2o2bo$6bo3bo2bo3bo$4bobobo6bobobo$3bobobob6obobobo$3bobobo3b2o3bo
bobo$4bobob2o4b2obobo$6bo2bo4bo2bo$5bo2bob4obo2bo$5b2obobo2bobob2o$8b
obo2bobo$3b4obob4obob4o$3bo2bob2o4b2obo2bo2$7b2obo2bob2o$9b6o2$9b6o$7b
2obo2bob2o2$3bo2bob2o4b2obo2bo$3b4obob4obob4o$8bobo2bobo$5b2obobo2bob
ob2o$5bo2bob4obo2bo$6bo2bo4bo2bo$4bobob2o4b2obobo$3bobobo3b2o3bobobo$
3bobobob6obobobo$4bobobo6bobobo$6bo3bo2bo3bo$6bo2b2o2b2o2bo$7bo8bo2$7b
o2bo2bo2bo$10bo2bo$7bobo4bobo$8bo6bo2$4b2o2bo6bo2b2o$4bo4b2o2b2o4bo$5b
5ob2ob5o$10bo2bo$7bobo4bobo$6bobo6bobo$3bo2bo2b6o2bo2bo$3b3o4b4o4b3o$
6b4o4b4o$5bo3bo4bo3bo$5b2ob2o4b2ob2o$3b2o4bo4bo4b2o$2bo2b3o3b2o3b3o2b
o$2b3o14b3o$5bo2bo6bo2bo$4b2o2bo6bo2b2o$4bo5b4o5bo$b2obob2o3b2o3b2obo
b2o$2bobob3ob4ob3obobo$obobo2b2o6b2o2bobobo$2o2bo3b2ob2ob2o3bo2b2o$4b
obo2bob2obo2bobo$5b5o4b5o$10b4o$5b4obo2bob4o$4bo14bo$4b2obo2bo2bo2bob
2o2$9b2o2b2o$b2o4b3o4b3o4b2o$bobo3bo8bo3bobo$3bo16bo$3b2o2bobo4bobo2b
2o$6bo10bo$3b3obobo4bobob3o$3bo2b2ob2o2b2ob2o2bo$4b2o2bo6bo2b2o$5bobo
bo4bobobo$5bo2b8o2bo$3bobo4bo2bo4bobo$2bobob2obo4bob2obobo$2bobobo10b
obobo$b2obob2o3b2o3b2obob2o$4bob2ob6ob2obo$b2obob2ob2o2b2ob2obob2o$bo
2bo14bo2bo$3bob2o2b2o2b2o2b2obo$2b2obo3b6o3bob2o$3bobobo3b2o3bobobo$3b
obobob6obobobo$4bobo4b2o4bobo$6bob3o2b3obo$4bo2bob2o2b2obo2bo$2b4obo8b
ob4o$bo5b2o6b2o5bo$2b3obo2b2o2b2o2bob3o$4bob4ob2ob4obo2$5b4obo2bob4o$
o5bo2b6o2bo5bo$3o5bo6bo5b3o$3bo4bob4obo4bo$2bo2bo2bo6bo2bo2bo$o2b3o2b
o2b2o2bo2b3o2bo$3o5bo6bo5b3o$3bo16bo$2bo2bobob2o2b2obobo2bo$2b4ob2o6b
2ob4o$7bo8bo$4b3o4b2o4b3o$4bo2b2o2b2o2b2o2bo$5bo3b2o2b2o3bo$8bobo2bob
o$9b2o2b2o$9bo4bo$9bo4bo2$9bo4bo$11b2o!

[hotdogPi]

I'm still not sure why no P19 billiard tables have been found. Below are a P17 and P18 that aren't phase shifts (as far as I know) and don't look the same halfway through (like P22 champagne glass).

Code: Select all

x = 46, y = 15, rule = B3/S23
5bo26b2o$4bobo26bo$4bobo3b2o19bobob2o$b2obob2o3bo18bobobobo3b2o$2bobo
6bob2o15bobo8bo$o2bobob3obo2bo14b2obo8bob2o$2obobo4bobo19bo7b2obo$3bob
o2b2o2b2o18bob2o7bo$3bobo3bobo17b2obo2bo4b3ob2o$4b2obobobo17bo2bobobo
2bo2bobo$6bobobo20bo2bob4obo2bo$6bobo23b2obo4b2obo$7b2o26bo2bo3bo$35bo
bob3o$36b2obo!

[bubblegum]

I'm still not sure why no P19 billiard tables have been found. Below are a P17 and P18 that aren't phase shifts (as far as I know) and don't look the same halfway through (like P22 champagne glass).

A p19 would easily be a few orders of magnitude harder to find than that p18.

[praosylen]

I'm still not sure why no P19 billiard tables have been found. Below are a P17 and P18 that aren't phase shifts (as far as I know) and don't look the same halfway through (like P22 champagne glass).

A p19 would easily be a few orders of magnitude harder to find than that p18.

That might be true if you were doing a direct search for a p19, like with WLS/JLS or ofind or whatever else — although "a few orders of magnitude" might be an overstatement — but something like dr (the program most billiard tables are found with) acts more akin to a "random sample of the space of all billiard tables within some parameter ranges that have nothing to do with period"-type search, so the decrease in frequency is most likely not quite as steep. A more accurate estimate for difficulty might be found by looking at the numbers of billiard tables (with period/mod = 1) in the p10-p18 range or so that have been found, then trying to fit an exponential to them and extrapolating it to p19. I don't really have any solid data on this, but if my memory is right there are maybe somewhere between 4–7 p17 billiard tables known and only 1 or 2 full-mod p18 ones — which is a significant decrease, but nowhere close to "a few orders of magnitude"! So I think finding a p19 billiard table is doable with enough concerted effort put into dr searching in new parts of the search space, but given that that might potentially mean several times the amount of searching that's already been done with dr ever (which is a lot), it's not surprising most people don't feel like putting in that effort.

[Hunting]

Here are some other new oscillators found in a similar manner. Oscillators in the first collection were found with the unmodified drifter search, while oscillators in the second collection were found with the modified program. I did not generally keep oscillators of periods <7, but I did save rotor descriptors for them. I did build all oscillators of periods <=7 except for a few trivial variants of the p7 signal injector. Many trivial oscillator variants achieved by combining components were left out.

Code: Select all

#C Billiard tables found with dr.c, Aug 2014
x = 292, y = 146, rule = B3/S23
50b2o$50bo$51bo$2bob2o20b2o22b2o120b2obo65b2o13b2o$2b2obo20bobob2obo5b
2o8bo122bob2o16b2o4bo12b2obo25bo2bo13bo$2o26bobob2o6bo7b4o118b2o4b2o
15bo2b3o2bo9bob2o25bob2o11bo5b2o14b2o$bo26b2o10bobo9bo117bo5bo16bobo3b
3o13b2o22b2o12b4o4bo16bo7b2o$o23bo16b2o3bo4b2o118bo5bo14b2ob2obo13b2o
3bo15b2ob2o4b2o8bo5b2obo3b2o8bo10bobo$2o21bo3bo16b2o124b2o4b2o12bo8bo
11bo2b3obo15bobob4o2bo7bo2b3obob2o2bo8bob5o7bo$2bob2o17bo4bo15bo2bo
124b2obo14b4o3b3o8bo2bobo2bobo2bo10bo5bo4b2o6b2obo2bo5bobo8bo5bo6b2ob
2o$2b2obo18bo3bo17b2o124bob2o31bobobo6bobobo5b2obob4o3b2obo8bob2o3b4o
2b2o5b2obob2o9bobo$6b2o19bo11b2o4bo3b2o119b2o4b2o12b3o3b4o8bo2bobo2bob
o2bo7bobobo5bobobo8bo11bo8bobob2o6b2obobo$7bo14b2o15bo9bobo118bo5bo13b
o8bo11bob3o2bo10bob2o3b4obob2o5b2o2b4o3b2obo8bobo9b2obob2o$6bo11b2obob
o16b4o7bo119bo5bo13bob2ob2o14bo3b2o10b2o4bo5bo10bobo5bo2bob2o6b2ob2o6b
o5bo$6b2o10bob2obobo16bo8b2o117b2o4b2o10b3o3bobo16b2o13bo2b4obobo12bo
2b2obob3o2bo10bo7b5obo$2bob2o18b2o14b2o130b2obo12bo2b3o2bo18b2obo10b2o
4b2ob2o10b2o3bob2o5bo10bobo10bo$2b2obo34bo131bob2o15bo4b2o17bob2o13b2o
21bo4b4o12b2o7bo$41bo187b2obo21b2o5bo23b2o$40b2o187bo2bo26bo$230b2o27b
2o10$41bo20bo$2b2obo33b3o18b3o133bo$2bob2o32bo20bo112b2obo20b3o21bo2bo
$2o36b2o13b2o3bob5o107bob2o23bo13bo6b4o$o19bobo10b2o11bo6bo4bo6bo104b
2o4b2o16b4obo2b2o8bobo3b2o4b2o$bo14b2obob2o10bo2b2o6b3o7b3obo2bo2b2o
104bo5bo16bo3bob2o2bo7bo2bo2bo3bo2bo$2o14b2obo3b2o9b2o2bo4bo12bo2bobo
109bo5bo15bobo4bobo8bob2obobobobobo$2b2obo13bob2o2bo5b3o6b2o2bo125b2o
4b2o13b2o4bobo2b2o6b2o2bobobo3bo2b2o$2bob2o10b2o6b2o5bo2b2o6b2o2bo125b
2obo14bo2b3o3bobo7bo2bobobobo4bobo$2o4b2o8bo2b2obo10bo2b2o6b3o9bobo2bo
110bob2o14bobo3b3o2bo8bobo4bobobobo2bo$o5bo10b2o3bob2o8bo4bo2b2o8b2o2b
o2bob3o112b2o10b2o2bobo4b2o8b2o2bo3bobobo2b2o$bo5bo11b2obob2o5b3o6b2o
2bo7bo6bo4bo111bo12bobo4bobo12bobobobobob2obo$2o4b2o11bobo9bo11b2o8b5o
bo3b2o112bo10bo2b2obo3bo12bo2bo3bo2bo2bo$2b2obo32b2o18bo117b2o10b2o2bo
b4o12b2o4b2o3bobo$2bob2o33bo15b3o114b2obo16bo19b4o6bo$36b3o16bo116bob
2o17b3o16bo2bo$36bo158bo6$22b2ob2o$18b2obob2obo$17bobobo$16bo2bobob3o
236b2o$17b3o6bo171bo45bo2bo14bo21b2o$24b3o139b2o4b2obo20b3o2bo16b2o3bo
2bo14bo2b4o11b2obo21bo$17b3o147bo4bob2o19bo3b3o17bo3b4o14b3o15bo2b2o5b
2o10b2obo$17bo6b5o137bo3b2o4b2o17bob2o20bob2o22b5o10b2o3b2obobo9bo2bob
2o$18b3obobo4bo136b2o2bo5bo16b2obobob4o13b2obobob3o14b3obo4bo6b3o2b3ob
obo10bobo3bobo$22bo2b5o141bo5bo14bobobo3bo3bo11bobobo3bo2bob2o9bo7b3o
6bo3bo2bo3bo9bo2b2o2bobo$17bob2obobo7bo133b2o2b2o4b2o15bo2bo4bobobo5bo
b2o2bo2bo4bobob2o5b2obobo2b2o12b3obobobo2bo9b2o4bobob2o$17b2ob2o2bo2bo
b4o134bo2bo5bo13b3o4b4o3bo6b2o2b2o4b4o2bo8bob2obo4bob2obo10bo4bo13bobo
bobo2bo$24bobobo137bo4bo5bo11bo3b4o4b3o10bo2b4o4b2o2b2o11b2o2bobob2o8b
o2bobobob3o9bo4bobo$23b2obo2b6o131b2o2b2o4b2o10bobobo4bo2bo10b2obobo4b
o2bo2b2obo6b3o7bo13bo3bo2bo3bo9b3obob2o$26bobo6bo134bo5bo12bo3bo3bobob
o9b2obo2bo3bobobo11bo4bob3o14bobob3o2b3o13b2o$26bobo2bob3o130b2o3bo5bo
12b4obobob2o14b3obobob2o13b5o16bobob2o3b2o12b2o3bo$27b2obobo5bo128bo2b
2o4b2o17b2obo20b2obo21b3o12b2o5b2o2bo10bo2bobob2o$30bo2b6o127bo5b2obo
16b3o3bo16b4o3bo17b4o2bo20bob2o10b2o2b2obobo$30bobo8bo124b2o4bob2o16bo
2b3o17bo2bo3b2o16bo2bo23bo21bo$29b2obo2bob5o153bo70b2o$32bobobo$32bobo
2b5o$33b2obo4bo$36bo2b2o$36bobo2b3o$35b2obo4bo$39b3o$41b2o4$172b2o2b2o
14b2obob2o$173bo3bo13bobob2obo$172bo3bo13bo2bo$111b2o59b2o2b2o12bobob
4o3bo$2bob2o42b2o15b2o44bo76b2o2bo5bobobo2b2o$2b2obo42bo3bo11bo2bo21bo
2bo20bo58b2o2b2o11bobo2bobobobob4o$6b2o37bo3b4o10bob2obob2o12b2o3b6o
14b7o57bo3bo11bob2o2b2obobo6bo$7bo15bo3b2o13bo2b4o12b3o4bobo2bo10bobo
8bobo12bo5bo55bo3bo13bo6bobob2o2b2obo$6bo15bobobobo13b3o3bo2b2o7bo3bob
obo3b2o12bo4b2obob2o10bo4b2obo55b2o2b2o14b4obobobobo2bobo$6b2o13bo2bob
o18b2o5bo8b2obo4bo16b2o4bobo11b4o4bobob2o71b2o2bobobo5bo2b2o$4b2o15bob
ob2o15b2o7bo10bobo2b2obo12bo10bo10bo11bobo52b2o2b2o18bo3b4obobo$5bo14b
2obo2bo4b2o10b3o4bob3o7bobo3bobo12b6o2b3o12b5o2b4o56bo3bo26bo2bo$4bo
18bo8bo8bo4bo2bo4bo8b2ob4ob2o99bo3bo22bob2obobo$4b2o17b2o4bo2bob2o5b3o
bo4b3o12bobo3bobo11b3o2b6o10b4o2b5o55b2o2b2o21b2obob2o$2b2o25b2obobo9b
o7b2o11bob2o2bobo10bo10bo7bobo11bo$3bo25bobo2bo8bo5b2o15bo4bob2o9bobo
4b2o10b2obobo4b4o$2bo24bobobobo9b2o2bo3b3o8b2o3bobobo3bo5b2obob2o4bo
13bob2o4bo$2b2o23b2o3bo14b4o2bo8bo2bobo4b3o6bobo8bobo11bo5bo$43b4o3bo
13b2obob2obo11b6o3b2o12b7o$43bo3bo20bo2bo14bo2bo19bo$46b2o21b2o40bo$
110b2o3$192b2o$193bo17bo$166b2o4b2obo16bo3bo13bobo$28b2o137bo4bob2o15b
ob6o11bobo$29bo2b2o132bo9b2o13bobo5bo9b2ob2o$29bobo2bo131b2o8bo11b2obo
4b2o2bo7bo5bobo$28b2o2bobo142bo10bo2bo3bob3o7bobobobob2o$24b2obo2bobob
2o130b2o8b2o12bo2b3o11bobo3bo$23bobobobo137bo4b2obo15b2o3b2o8b2obobobo
$22bo4bob3ob3o130bo5bob2o17b3o2bo8bob2obob2o$23b4o5bo2bo130b2o2b2o17b
3obo3bo2bo6bo4bobo$30b5o135bo17bo2b2o4bob2o7b3obobo$23b5o138b2o3bo17bo
5bobo14b2ob2o$22bo2bo5b6o130bo2b2o18b6obo10b2o3bo2bo$22b3ob3obo6bo128b
o5b2obo16bo3bo10bo2bobobo$28bobo2bob3o128b2o4bob2o19bo11b2o2b2ob2o$22b
2obobo2bobobo5bo154b2o$23bobo2b2o2bo2b6o$23bo2bobo3bobo$24b2o2bo2b2obo
2b6o$28b2o4bobobo4bo$34bobob6o$35b2obo7bo$38bo2b6o$38bobo$37b2obobob5o
$40bobo6bo$40bobo2b5o$41b2obo7bo$44bo2bob4o$44bobobo6bo$43b2obo2b7o$
46bobo$46bobo2b5o$47b2obobo2bo$50bob2o$50bobob4o$49b2obo4bo$53b3o$55b
2o!

I think the third p10 in this collection looks like a creepy clown face:

Code: Select all

#C Billiard tables found with a modified version of dr.c, Aug 2014
x = 315, y = 235, rule = B3/S23
205b2obo61bo21bobo$116b2o86bobob3o58bobo14b2o3bob2o$2bob2o16bo26b2o3b
2o61bo58b2o4b2obo16b3obo4bo7b2o12b2o11b2ob2o17bobobo14bo3bo$2b2obo16b
3o20b2obo2bo3bo48bo11bo3b2o55bo4bob2o15bo6b3o8bo2bo8bo2bo10bobobobo14b
3obob3o12bob2ob5o$6b2o17bo2b2obo14bobobo2bo9b2o12b2o12bo3b2o6bobo10b2o
3bo54bo3b2o4b2o13b5obo12b2o10b2o10bo7bo12bo4bo4bo12bobobo4bo$7bo16bo2b
obob3o11bo2bobob3o8bobo10bobo11bobobobo6bobo8b2o3bo56b2o2bo5bo18b2o2b
2o11bo2b4o2bo8bo2bob2o3b2obo2bo8bo2b2ob2o2bo14bobob3o$6bo17b2obobo4bo
10b2obobo4bo9bo10bo12bo2bobo6b2o2b2o6bo2b5o60bo5bo13b4o5bo9b2o10b2o6b
4obo5bob4o5b2obobobobobobob2o10b2o6b3o$6b2o14b2o3bo3b2o2bo7b2o3bo3b2o
2bo8b2o8b2o12bob2obo2bo4bobo2bo5b2obo4bo54b2o2b2o4b2o12bo9bob2o5bo2b
10o2bo11bo3bo11bobo2bo5bo2bobo9bo6b2o2bo$4b2o15bo2bobo4bob2o7bo2bobo4b
ob2o7b2o12b2o8bobo6bo4b2obobo9bo2b2obob2o51bo2bo5bo11bo2b2o6b2o2bo5b2o
12b2o7bobobobobobobo10b2o7b2o8b2o2bo8bobobo$5bo16bobobo2bobobo9bobobo
2bobobo7bo2b2obo4bob2o2bo6bobob2o4bo6bobo7b2obo5bob2o50bo4bo5bo10b2obo
9bo12bo4bo11bob2o3bo3b2obo10bobobobobo9bobobo8bo2b2o$4bo16b2obo4bobo2b
o7b2obo4bobo2bo7bobo2bo4bo2bobo6bo2bobo4bo2bob2obo9b2obob2o2bo53b2o2b
2o4b2o13bo5b4o12bobo2bobo10bo3b2o3b2o3bo10bob2ob2obo11bo2b2o6bo$4b2o
14bo2b2o3bo3b2o7bo2b2o3bo3b2o7b2o2b2o6b2o2b2o6b2o2b2o6bobo2bo13bo4bob
2o54bo5bo14b2o2b2o16bobo2bobo11b2o3b3o3b2o10b2obo3bob2o10b3o6b2o$2b2o
17bo4bobob2o10bo4bobob2o11bobobo4bobobo9bobo6bobobobo15b5o2bo50b2o3bo
5bo16bob5o11b2ob4ob2o12b2o5b2o11bo2bo5bo2bo12b3obobo$3bo18b3obobo2bo
11b3obobo2bo11bo2bo6bo2bo9bobo6b2o3bo17bo3b2o52bo2b2o4b2o13b3o6bo13bo
19bob5obo11b2o2b5o2b2o11bo4bobobo$2bo21bob2o2bo13bo2bobobo11b2o12b2o9b
o28bo3b2o53bo5b2obo14bo4bob3o14bobo21bo40b5ob2obo$2b2o27b3o8bo3bo2bob
2o64b2o3bo53b2o4bob2o15b3obobo17b2o43bo23bo3bo$33bo8b2o3b2o72bo81bob2o
62bobo19b2obo3b2o$121b2o147bo20bobo5$105bo$26b2o13bo2bo2b2o20b2o33bobo
122b2obo$24b3obo12b4o3bo20bo12b2o3b2o15bobo122bob2o$23bo4bo16b3o18b2ob
o13bo3bo15b2ob2o$23bo2b2o12bob2o4b3o15bobo12bo7bo110b2o2b2ob2o17bo3b3o
3bo$22b2obo2b3o9b2obob3o2bo30b2o5b2o11b9o90bo2bobobo17bobobobobobobo$
20bo2bob3o2bo14bo2bo36bo14bo4bo4bo90bobo3bobob2o11bo2bobo3bobo2bo$20b
2o3bo2bo52b9o10b2o7b2o89b2obo3bob2obo12b3obo3bob3o$46bobo13bo2b5o2bo7b
o9bo7b2o5bo5b2o85bo4b2ob2o21b2ob2o$26bobo33b4obob4o6bo2b2o3b2o2bo5bo2b
4o3b4o2bo84b4o7b3o9b2o2b3o7b3o2b2o$46bo2bo30b2obo3bob2o7b2o5bo5b2o89b
2o3b2o3bo8bo2bo3b2o3b2o3bo2bo$26bo2bo3b2o9bo2b3obob2o9b2o3b2o10bo7bo
10b4o3b4o87b2o11b2o9bob2o11b2obo$24bo2b3obo2bo9b3o4b2obo9bo2bo2bo10bo
7bo10bo2bobobo2bo87bo3b2o3b2o12b2obo3b2o3b2o3bob2o$24b3o2bob2o14b3o15b
obobo10b2ob5ob2o13b3o92b3o7b4o12b3o7b3o$27b2o2bo14bo3b4o6b2obobo3bobob
2o8bobobo115b2ob2o4bo16b2ob2o$26bo4bo14b2o2bo2bo6bob2obobobob2obo8bobo
bo15bob2o91bob2obo3bob2o14b3obo3bob3o$26bob3o35bobo15bobo16b2obo91b2ob
obo3bobo14bo2bobo3bobo2bo$27b2o38bo17bo117bobobo2bo14bobobobobobobo$
202b2ob2o2b2o15bo3b3o3bo2$229bob2o$229b2obo2$27bo$27b3o77bobo$30bob2o
10b2o4bo18bo2b2o29b2obob2o2bo$25b3o2bobo2bo7bo2bo2bobo16bobo2bo15b2o
12bob2o3b3o$24bo3b2o2bob2o8b2o3bob3o14bobobo12b2obo2bob2o12b2o$23bob2o
5bo13b3obo3bo14bobob3o8bobob4obobo8b2obob2o3b2o$23bobo5b2o11b2o4bobo2b
o15bo4bo6bo2bo6bo2bo6bobobobobobobo$20b2obo6bo2b2o8bo2bo2bobobobo7b2o
6bobo2bo6b4o6b4o6bobobo3bobo$21bo2bo4bo2bo2bo7b3o9b2o5bo2bo5bo2bob2o
24b2o6bo2bo121bo$21bo2bo3bo4b2o6b2o9b3o7b2obo2bo5bo2bo5b3o2bo2bo2b3o7b
o2bo6b2o118bobo$22b2o3bo14bobobobo2bo2bo8bo2bobo6b2o6bo2bobo2bobo2bo7b
obo3bobobo67b2o2b2o46bobo$26bo15bo2bobo4b2o9bo4bo15bobo6bobo6bobobobob
obobo68bo3bo45b2ob3o$22b5obo14bo3bob3o12b3obobo14b2ob4ob2o7b2o3b2obob
2o68bo3bo52bo$22bo4bobo14b3obo3b2o13bobobo15bo4bo16b2o71b2o2b2o45b2ob
3o$24bo2bobo16bobo2bo2bo11bo2bobo15bob2obo12b3o3b2obo83bo20bo5bo7b2obo
9bo$23b2o3bo18bo4b2o12b2o2bo17bob2o13bo2b2obob2o67b2o2b2o10b3o16b3o5b
3o16b3o$108bobo72bo3bo13bo14bo11bo14bo$182bo3bo13bo2bob2o4b2obo2bo9bo
2bob2o4b2obo2bo$182b2o2b2o12b4o10b4o9b4o10b4o$205bo6bo19bo6bo$182b2o2b
2o14b2obobo2bobob2o13b2obobo2bobob2o$183bo3bo14bo2bob4obo2bo13bo2bob4o
bo2bo$46b2o10b2o16b2o7b2o14bo4b2o4b2o68bo3bo16bo2bo4bo2bo15bo2bo4bo2bo
$46bo12bo15bo2bo7bo14b3o2bo6bo68b2o2b2o12b3o4bo2bo4b3o9b3o4bo2bo4b3o$
48bob2obo3bo17bobo2bo3bo19bobo4bo20bo67bo5b2o2b2o5bo9bo5b2o2b2o5bo$47b
2obob2o3b2o4b2o9b2ob4o3b2o15b4ob2o3b2o18bobo$47bo2bo9b2o2bo9bo2bo9b2o
12bo2bo9b2ob2o8b2o3bo3b2o$43b2o3bo2b3o3b3ob2o7b2o3bo2b3o3b3ob3o6b2o3bo
2b3o3b3obobo9bo9bo$43bo2bobobo3bobo13bo2bobobo3bobo7bo5bo2bobobo3bobo
4bobo6b2obo9bob2o$45b2obobo3bob3ob3o9b2obobo3bob3ob3obo7b2obobo3bob3ob
3o7b2obob2o3b2obob2o$23b2ob2o2b2ob2o14b2obobo4bo2bo13b2obobo4bobobo12b
2obobo4bo13bobo2bo2bobo$23bo3bo2bo3bo21bo2bobo21bo2bobo21bo2bob4o8bo3b
obo3bo$20b2obobob4obobob2o11b3o7bob2o13b3o7bob2o13b3o7bobo2bo5b2obo3bo
bo3bob2o$20bobo2b2o4b2ob2obo7b2obo7b3o13b2obo7b3o11bo2bobo7b3o11b2ob2o
b2ob2ob2ob2o$23b2o3b2o16bobo2bo21bobo2bo18b4obo2bo21bo3bobo3bo$25b2obo
16bo2bo4bobob2o12bobobo4bobob2o16bo4bobob2o14bo3bobo3bo$25bo2bo16b3ob
3obo3bobob2o7bob3ob3obo3bobob2o9b3ob3obo3bobob2o9b2obo2bo2bob2o162bo$
26b2o23bobo3bobobo2bo5bo7bobo3bobobo2bo6bobo4bobo3bobobo2bo5bo2bob2o3b
2obo2bo160b3o$45b2ob3o3b3o2bo3b2o6b3ob3o3b3o2bo3b2o6bobob3o3b3o2bo3b2o
5b2obo9bob2o163bo$43bo2b2o9bo2bo12b2o9bo2bo9b2ob2o9bo2bo12bo9bo69b2o
47bo4b2o36b5o2bo$43b2o4b2o3b2obob2o15b2o3b4ob2o15b2o3b2ob4o12b2o3bo3b
2o38b2o4b2obo21b2o45b5o2bo11b2o8b2o13bo5b3o$50bo3bob2obo17bo3bo2bobo
17bo4bobo19bobo43bo4bob2o42bo12bo11bo5bobo12bo8bo13bobo3bo5bo$48bo12bo
13bo7bo2bo15bo6bo2b3o17bo43bo9b2o19b4o16bobo10bobo9bo2b2ob2ob3o9bo10bo
13bo5bo3bobo$48b2o10b2o13b2o7b2o16b2o4b2o4bo61b2o8bo14b2o3bo4bo3b2o10b
obo10bobo10b3o8bo8b2o8b2o14b5obobobobo$187bo13bo4b2o2b2o4bo8b2o2bob2o
4b2obo2b2o12b5o2bo6b2o3b2o2b2o3b2o8b2o6bobobo3bo$176b2o8b2o11bobo14bob
o7bobo12bobo6b2o3b2o5bob2o5bo2b2obo2bob2o2bo9bo2b3o2b2obo3bob2o$177bo
4b2obo12bob2ob2o8b2ob2obo6bob2obo6bob2obo6bobobo3bo2b2obo7b2o3bo2bo3b
2o8bobobo2bo5bo3bobo$176bo5bob2o12bo4bo2b2o2b2o2bo4bo7bo3bo6bo3bo9bob
3o7bo9b3o4b3o9bobobob2o5b2obobobo$176b2o2b2o17b3o2b2o6b2o2b3o9b2obobo
2bobob2o9bo7b3obo8b2o10b2o7bobo3bo5bo2bobobo$180bo21b2o10b2o13bobob4ob
obo10bob2o2bo3bobobo5bo2b2o6b2o2bo5b2obo3bob2o2b3o2bo$176b2o3bo19bo2bo
b2o2b2obo2bo12bob2o4b2obo9b2obo5b2o3b2o5b2o3bo4bo3b2o8bo3bobobo6b2o$
177bo2b2o20b2o3bo2bo3b2o14bo3b2o3bo11bo2b5o14b2o8b2o10bobobobob5o$176b
o5b2obo18b3o4b3o17b3o2b3o12bo8b3o10bo10bo11bobo3bo5bo$176b2o4bob2o18bo
2bo2bo2bo19bo2bo15b3ob2ob2o2bo10bo8bo13bo5bo3bobo$205b2o4b2o41bobo5bo
10b2o8b2o15b3o5bo$254bo2b5o38bo2b5o$21b2o230b2o4bo42bo$2b2obo14bo2bo
15b2o4b2o64bo191b3o$2bob2o14bobo3bo11bo2bo2bo2bo16b2o17b2o3b2o20bobo
192bo$2o4b2o13bob4o11bob2o2b2obo15bo2bo15bobo3bobo19bobo$o5bo16bo13b2o
8b2o15b2obo14bo7bo11bob2ob2obobob2ob2obo$bo5bo10b2o2bo3b3o11b2o2b2o15b
3o3bo11b2obo7bob2o8b2obobobo3bobobob2o$2o4b2o10bo2bo3bo3bo7b2o8b2o12bo
3b2ob2o8bobobob2ob2obobobo12bo7bo$2b2obo13bob2o5b2o8bobo4bobo15b2obobo
2bo6bobo2bobobobo2bobo11bobo5bobo$2bob2o12b2o10b2o6bo8bo6b2o6b2o6b2o5b
2obo4bobo4bob2o10b2obo3bob2o$2o4b2o12b2o5b2obo6b2obo4bob2o5bo2bobob2o
17b2o9b2o16bobobo$o5bo13bo3bo3bo2bo7bob4obo9b2ob2o3bo15bo2b2o3b2o2bo
13b2obo3bob2o$bo5bo13b3o3bo2b2o7bo6bo11bo3b3o16b2o7b2o14b2obo3bob2o86b
2o$2o4b2o18bo11b2obo2bob2o10bob2o21b7o20b3o88bo2bo2b2o23bo$2b2obo17b4o
bo9bo2b4o2bo11bo2bo20bo5bo88b2o2b2obo15b2o5bo22bobo$2bob2o17bo3bobo10b
o4bo14b2o24b3o20bob2o66bo2bob2o17b5o22bobobo$26bo2bo11bo2bo41bo22b2obo
65bo7b2o13b2o5b3o15b2o2bo3bo2b2o$27b2o11b2o2b2o132b2o6bo13bo3bobo3bo
15bobobobobobobo$187bo10bo2b2o5b2o13bo4bo2b3o2bo4bo$178b2o6b2o10b2obo
7bobo10bobo3bo7bo3bobo$179bo2b2obo15bo7bob3o6bo2bo2bobo7bobo2bo2bo$
178bo3bob2o15bobobobobo4bo5b2obob2obobo3bobob2obob2o$178b2o6b2o14bobob
obobob2o9bo2bobo7bobo2bo$23b2o3b2o156bo17bobo3bobo10b2o3bo7bo3b2o$23bo
bobobo16b2o18b2o110b2o7bo16bobo2b2obo15bo2b3o2bo$25bobo19bo19bo111bo6b
2o14bobobobo2bo14bobobobobobobo$25bobo18bo18bo5b2o26b2o8b2o67bo3b2obo
15bob2obob3o15b2o2bo3bo2b2o$23bobobobo15bob3o14bob4o2bo27bo8bo68b2o2bo
b2o15bo5bo22bobobo$22bobobobobo14bo4bo10bo2bo5b2o6b2o9b2o8bo10bo89b2o
6bo22bobo$18b2o2bo7bo11b2obo2b2obo8bobobo2b2o9bo11bo7bob3o4b3obo95b2o
23bo$18bobobo7bob2o9bobo5bo9bo2bo4b3o7b3obobob3o8bobo2bo2bo2bobo$20bob
2o5b2obo10bobob2obob2o10bob2o4bo9bo3bo10b2o3b2o2b2o3b2o$19b2obo7bobo9b
2obo2bobo2bo8bobo2bob3o7b2obo3bob2o8bobo8bobo$22bo7bob2o6bo2bobo2bob2o
8b3obo2bobo9bo2bobobo2bo7bo2b4o2b4o2bo$22bobobobobo3bo5b2obob2obobo8bo
4b2obo12b2o2bo2b2o9b2o10b2o$23bobobobobob2o7bo5bobo9b3o4bo2bo6b3o2b2ob
2o2b3o9b2o4b2o$25bobo3bobo8bob2o2bob2o11b2o2bobobo5bo2bo2bobo2bo2bo6b
2obo6bob2o$25bobo2b2obo9bo4bo11b2o5bo2bo9b2o5b2o9bo2bo6bo2bo$23bobobob
o2bo11b3obo10bo2b4obo31b2o8b2o$22bob2obob3o15bo11b2o5bo$22bo5bo17bo17b
o$21b2o6bo16b2o16b2o145b2o$28b2o181bo$176b2o3b2o3b2o20b2obo$109b2o66bo
3b2o3b2o20bobo$63b2o44bo66bo$62bo2bo18b2o3bo16b2obo66b2o3b2o3b2o$61bob
2o19bo4b3o14bo2b2o70bobobobo21bo$25b2o20b2o13bo6b2o14bo6bo14b2o3b2ob2o
59b2o5bobo13bo8bob2o$20b2obo2bo16b2obobo10b3o2b3o2bo12b3o2b3o2bo16b3ob
obobo59bo4b2obo13b3o4bo$19bobob2obob2o9b2o3bobo11bo3b2o3bobo12bo2b2o3b
ob2o11b3o7bobo58bo9b2o14bo3bo5bo3b2o$18bo7bobo10bo2bo3b2o8bo2b3o2bob2o
b2o8b2obobo2bob2obo12bo2b4o3bo2b2o56b2o9bo13bo3bo7bo3bo$18b5o3bobo11b
5o4bo6b2obo2bo16bo2b2obo7bo14bo2bo4bobo67bo14b2o3bo5bo3bo$26bob2o16bob
2o9bo7b4o9b2o8b4o8b2o11b2o2bo56b2o8b2o24bo4b3o$18b2ob3o6bob2o6b2obo15b
4o7bo11b4o8b2o6bo2b2o11b2o57bo9bo19b2obo8bo$18b2obo6b3ob2o6bo4b5o17bo
2bob2o8bo7bob2o2bo6bobo4bo2bo62bo9bo22bo$22b2obo16b2o3bo2bo8b2ob2obo2b
3o2bo9bob2obo2bobob2o5b2o2bo3b4o2bo59b2o8b2o$23bobo3b5o9bobo3b2o9bobo
3b2o3bo10b2obo3b2o2bo10bobo7b3o$23bobo7bo7bobob2o13bo2b3o2b3o12bo2b3o
2b3o10bobobob3o95bobo$22b2obob2obobo8b2o16b2o6bo15bo6bo14b2ob2o3b2o92b
ob2o$25bo2bob2o33b2obo15b3o4bo19b2o2bo91bo$25b2o37bo2bo18bo3b2o20bob2o
90b2o$65b2o45bo$111b2o6$24b2o4b2o17b2o4b2o12b2o10b2o40b2o$24bobo2bobo
17bobo2bobo13bo2b2o2b2o2bo9b2o3b2o2b2o3b2o16b2o83b2o$26bo2bo13b2o6bo2b
o6b2o7bobobo2bobobo8bo2bobobo2bobobo2bo12bo85bo2bo$22b4o4b4o10bo2b4o4b
4o2bo7b2obo6bob2o6bo2b2obo6bob2o2bo9b9o79b3o$21bo4b4o4bo9bobo4b4o4bobo
6bo3b2o4b2o3bo5b3o3b2o4b2o3b3o8bo5bo3bo$21bo3bo4bo3bo8b2obo3bo4bo3bob
2o5b3o2bo4bo2b3o8b2o10b2o11bob2o5bobo47b2o5bob2o17b7o$18b2obobo2bo2bo
2bobob2o5bo4bo2bo2bo2bo4bo9bo6bo11bo3b2o4b2o3bo9b2obo7bobo47bo5b2obo
16bo3bo3bo$18bo2bob2obo2bob2obo2bo7b2ob2obo2bob2ob2o7b3o2bo4bo2b3o7b3o
10b3o10bo2b2o3b2o2bo46bo4b2o20b2o5b2o$20b2obo8bob2o10bobo8bobo8bo2b4o
2b4o2bo10b10o13bo3bo3bo3bob2o43b2o4bo22bo3bo$24b8o13bo3b8o3bo8b2o10b2o
10bo10bo9b2ob2o9b2ob2o48bo19b5o3b5o$45bob2o8b2obo10b2o6b2o11bob2o6b2ob
o8b2obo3bo3bo3bo46b2o3b2o17bo13bo$24b2o4b2o14bo3bo4bo3bo11bobo4bobo11b
obobo4bobobo11bo2b2o3b2o2bo47bo5bob2o12bobo2bo5bo2bobo$23bo2bo2bo2bo
14b3obo2bob3o13bo6bo9b2obo3bo4bo3bob2o8bobo7bob2o45bo6b2obo13bo13bo$
24bobo2bobo17bobo2bobo12b3o8b3o6b2obo2b2ob2ob2o2bob2o9bobo5b2obo46b2o
9b2o12b5o3b5o$23b2ob4ob2o18b4o14bo12bo9bobo2bo2bo2bobo13bo3bo5bo58bo
16bo3bo$25bo24bo4bo36bob2obo2bob2obo14b9o47b2o9bo15b2o5b2o$25bobo22b2o
2b2o37bo2bo4bo2bo21bo50bo9b2o14bo3bo3bo$26b2o66b2o6b2o18b2o52bo6bob2o
17b7o$122b2o52b2o5b2obo$206b3o$206bo2bo$208b2o8$73bo40bo$2b2obo46b2o
18bobo28b2o7b3o93bo$2bob2o41b2obo2bo18bobo14bo2bo9bo2bo5bo95bobo$2o4b
2o38bobob2o14bo4b2obob2o11b4o9bob2o5b2o95bo2b2o$o5bo39bobo16bobo6b2obo
15b2o6b2obo7bo99bo$bo5bo17b4o14b2obobo17bo4b2o16b3o3bo8bo7bobo91b6o$2o
4b2o16bo4bo11bo2bobo2bo20bo3b3o11bo4b2o9bobobobobob3o60b2o3bob2o19bo6b
3o$2b2obo15bobobo2bobobo8b2o3bo3b2o18b3o3bo10bobobobo11bobobobobo3bo
60bo3b2obo19b3o3bo3bob2o$2bob2o13b3obobo2bobob3o11b2o3bo3b2o11b2o3b3o
7b2obobo4bo13bobo3bo2bo60bo8b2o24bo2bobobo$6b2o10bo3b2ob4ob2o3bo12bo2b
obo2bo8bobobo2bo11bobo4b2o14bobo2b2obo61b2o8bo17b7obobobobo2bo$6bo12b
2o3bo4bo3b2o14bobob2o8b3obobobobo10bobobobo14bobobobo2bo71bo17bo6bobob
o3bobobo$7bo13b2o2bo2bo2b2o16bobo10bo7bobo10b2o5bo13bob2obob3o63b2o7b
2o16bo2b3o2b2obo3bo2bo$6b2o13bob2o4b2obo13b2obobo11b4obobo14bob3o14bo
5bo67bo5b2o15b2obobo2bo5bo3bo$2b2obo38bo2bob2o15bobobo14bobo15b2o6bo
65bo7bo15bobobob2o5b2obobobo$2bob2o38b2o19bo2b2o16bo23b2o65b2o5bo18bo
3bo5bo2bobob2o$65b2o117b2o14bo2bo3bob2o2b3o2bo$177b2o3b2o15bobobo3bobo
bo6bo$178bo4bo16bo2bobobobob7o$177bo4bo20bobobo2bo$177b2o3b2o20b2obo3b
o3b3o$208b3o6bo$21b2o188b6o$22bo24bo2bo159bo$22bobo20b3o2b3o157b2o2bo$
20b2obobo2b2o11b2obo3b2o3bob2o156bobo$19bobo3b4o10bo2bob2obo2bob2obo2b
o155bo$19bobo2bo5bo8b2obobo3b2o3bobob2o$18b2obo3b6o11bo2bobo2bobo2bo$
18bo2bob3o5b2o9bobo3b2o3bobo$19b2o5b3obo2bo5b2obobob2o2b2obobob2o$21b
6o3bob2o6bobo4bo2bo4bobo$21bo5bo2bobo7bobob3o4b3obobo$23b4o3bobo8bo14b
o$22b2o2bobob2o10b4obo2bob4o$27bobo14bob2o2b2obo$29bo$29b2o!

Sorry for the one-line question, but what input files were used for these oscillators?

[Sokwe]

what input files were used for these oscillators?

Since those were from over 6 years ago, I doubt I could find the original input files. I'm sure they weren't anything special. Just a specified symmetry with a few cells set in the center.

[Hunting]

what input files were used for these oscillators?

Since those were from over 6 years ago, I doubt I could find the original input files. I'm sure they weren't anything special. Just a specified symmetry with a few cells set in the center.

Ah, thanks. Tbh I didn't expect such a fast reply.

I'm recently learning to use dr (not dr2) for LeapLife. Any tips for setting up advanced or more effective searches?

[cvojan]

A strong P9 MW oscillator partial:

Code: Select all

x = 24, y = 21, rule = B3/S23
18bo$17bobo$11b2o2b3obo$11bo2bo4b2o$5b2ob2obo3b3o4bo$4bobobobob3o3b4o$
4bobobobobo3bo$3b2o5bobo3bo3bo$bo3b2o5bo3bob2o$4bob8o3bo5bo$o3bo7b3o8b
o$4bob8o3bo5bo$bo3b2o5bo3bob2o$3b2o5bobo3bo3bo$4bobobobobo3bo$4bobobob
ob3o3b4o$5b2ob2obo3b3o4bo$11bo2bo4b2o$11b2o2b3obo$17bobo$18bo!

Doesn't seem to be doing well

[hotdogPi]

These two R-pentominoes become blocks in pretty much exactly the same location the R-pentominoes were in. Are there any sparkers that can turn the blocks back into R-pentominoes and activate them repeatedly? I believe the repeat time is 41 ticks. If we can find one, I imagine it to be similar to the two ponds and two blocks reaction, where a whole bunch of different periods can be found.

Code: Select all

x = 3, y = 11, rule = B3/S23
bo$b2o$2o6$2o$b2o$bo!

[MathAndCode]

These two R-pentominoes become blocks in pretty much exactly the same location the R-pentominoes were in. Are there any sparkers that can turn the blocks back into R-pentominoes and activate them repeatedly? I believe the repeat time is 41 ticks. If we can find one, I imagine it to be similar to the two ponds and two blocks reaction, where a whole bunch of different periods can be found.

The most obvious way (at least to me) to turn the blocks back into R-sequences is to use a three-cell spark.

Code: Select all

x = 4, y = 6, rule = B3/S23
2o2$2bo2$2b2o$2b2o!

That spark isn't very common, but a bigger problem is clearance. The R-sequences flail around for a bit in all directions before settling on moving forwards, so any sparker that works is going to need fairly good fallback. Also, the necessary spark will have to be inserted from the inside, which makes what you're trying to do unfeasible except possibly by using gliders to supply the sparks, in which case you may as well delete the blocks and synthesize the R-sequences from scratch.

[hotdogPi]

These two R-pentominoes become blocks in pretty much exactly the same location the R-pentominoes were in. Are there any sparkers that can turn the blocks back into R-pentominoes and activate them repeatedly? I believe the repeat time is 41 ticks. If we can find one, I imagine it to be similar to the two ponds and two blocks reaction, where a whole bunch of different periods can be found.

The most obvious way (at least to me) to turn the blocks back into R-sequences is to use a three-cell spark.

Code: Select all

x = 4, y = 6, rule = B3/S23
2o2$2bo2$2b2o$2b2o!

That spark isn't very common, but a bigger problem is clearance. The R-sequences flail around for a bit in all directions before settling on moving forwards, so any sparker that works is going to need fairly good fallback. Also, the necessary spark will have to be inserted from the inside, which makes what you're trying to do unfeasible except possibly by using gliders to supply the sparks, in which case you may as well delete the blocks and synthesize the R-sequences from scratch.

If the sparkers are on the left, clearance shouldn't be an issue this way (they never go farther left than the farthest left cell shown here).

Code: Select all

x = 4, y = 11, rule = B3/S23
2b2o$2b2o2$2bo2$2o2$2bo2$2b2o$2b2o!

[wwei47]

A strong P9 MW oscillator partial:

I hope there's a solution as simple and elegant as 104P9.

[wwei47]

Is this known?

Code: Select all

x = 28, y = 69, rule = B3/S23
9bo16b2o$9b2o15b2o2$14b2o$14b3o3$24bo$23bobo$23bobo$24bo$19bo$17bo2bo
$16bo3bo$16bo3bo$16bo2bo$17bo$12bo$11bobo$11bobo$12bo5$18bobo$9b2o7b2o
$9b2o8bo14$18bo$17b2o2$12b2o$11b3o3$3bo$2bobo$2bobo$3bo$8bo$7bo2bo$7b
o3bo$7bo3bo$8bo2bo$10bo$15bo$14bobo$14bobo$15bo3$5b3o$5b2o2$2o15b2o$o
16b2o!

EDIT: I THINK MY POSTS ARE TELEPORTING HELP

[hotdogPi]

I don't have automated tools, so if someone could complete this:

Find some still lifes or sparkers on the bottom (in green) so that the R-pentominoes return to their original position, creating an oscillator (as long as any destroyed still lifes are recreated, which I believe there are ways to do by putting something behind it). I've tried lots by hand, and this is the closest I've gotten: it goes back to two R-pentominoes (generation 204), but they're in the wrong position and rotation (and the boats are destroyed, but that can probably be fixed).

Something probably exists. I've tried maybe 100, there are thousands of options if you include combinations of still lifes, and since one of them returned 2 R-pentominoes offset (6,0) and rotated 90°, there are probably many with different offsets, including the desired offset and rotation of 0.

Code: Select all

x = 63, y = 30, rule = LifeHistory
20.2C19.2C$19.B2CB17.B2CB$20.3B17.3B$21.B19.B$19.5B15.5B$19.6B13.6B$
19.6B13.6B$19.6B13.6B$19.6B13.6B$19.6B13.6B$19.10B5.10B$19.11B3.11B$
18.12B3.12B$19.12B.12B$18.13B.13B$12.B.17B.17B.B$4.26B3.26B$.2B.26B3.
26B.2B$2C24B2CB5.B2C24B2C$2CB.21B2C2B5.2B2C21B.B2C$.B2.22BC2B5.2BC22B
2.B$5.6B2.2B3.11B5.11B3.2B2.6B$17.12B5.12B$17.12B5.12B$16.12B7.12B$
17.6B17.6B$18.B.B21.3B$18.2A23.2A$18.A.A21.A.A$19.A23.A!

[JP21]

Has this p9 honey farm hassler been seen before?

Code: Select all

x = 17, y = 41, rule = B3/S23
7bo$6bobo$6bobo$5b2ob2o$12bo$3bob8o$2b2o5bo$6bo4b2o$6bob2o2bo$6bo3b2o
2$2b2o2bo3b2o$2bo2b3o2bobo$3b3ob2o2b2o$8bo$5bo9b2o$15bo$12b2obo$10bo3b
o$4bobo2bo$7bobo$7bo2bobo$2bo3bo$bob2o$bo$2o9bo$8bo$4b2o2b2ob3o$4bobo
2b3o2bo$5b2o3bo2b2o2$5b2o3bo$4bo2b2obo$4b2o4bo$7bo5b2o$4b8obo$4bo$7b2o
b2o$8bobo$8bobo$9bo!

[EDIT] Does this even count? (also p9):

Code: Select all

x = 31, y = 49, rule = B3/S23
11bo$11b3o2b2o$14bo2bo$9b4obobo$8bo3b3ob2o$9b3o2bo$11bob2ob2o$14bobobo
b2o$18bob2o$8bo3bo5bo$7bobo2bob2ob2o$6bo2b4ob2obo$7b2o5b2obo$9b2o7bo$
9bob2o5bo$11bobobo$15b2o$11bo3b2o$5b2o4bob3o7b2o$5b2o5bo10bobo$25bo2b
2o$3b6o15b2obobo$2bo5bo6b2o6bo3bo$3bo2b2o5b2o2bo5b5o2bo$3o10b2ob2o10b
3o$o2b5o5bo2b2o5b2o2bo$3bo3bo6b2o6bo5bo$bobob2o15b6o$b2o2bo$5bobo10bo
5b2o$6b2o7b3obo4b2o$14b2o3bo$14b2o$15bobobo$12bo5b2obo$12bo7b2o$13bob
2o5b2o$13bob2ob4o2bo$12b2ob2obo2bobo$12bo5bo3bo$9b2obo$9b2obobobo$13b
2ob2obo$16bo2b3o$13b2ob3o3bo$14bobob4o$13bo2bo$13b2o2b3o$19bo!

[MathAndCode]

Code: Select all

x = 24, y = 24, rule = B3/S23
15b2o$7bo7bo$7b3o3bobo$10bo2b2o$9bo$10b2o$11bo$o20b2o$3o8b2o8bo$3bo6b
o2bo5bobo$2b2o5bo4bo3bobo$8bo6bob2o$5b2obo6bo$3bobo3bo4bo5b2o$2bobo5b
o2bo6bo$2bo8b2o8b3o$b2o20bo$12bo$12b2o$14bo$9b2o2bo$8bobo3b3o$8bo7bo$
7b2o!

Can the same mechanism be used to hassle the octagon at other periods?



Edit: I found this.

Code: Select all

x = 44, y = 44, rule = B3/S23
17b2o$17b2o4$14bobo4b2o$14bo2bo3bo$10b2o6bo5bo$10bo4bo2bo4b2o$18bo$15b
obo17b2o$15b2o3b3o5b2o6bo$19bo3bo4b2o$18bo5bo$11b2o5b2obo15b2o$11b2o10b
2o7b2obo$32bo5bo$33bo3bo4b2o$21b2o6b2o3b3o5b2o$7b2o4bobo4bo2bo5bobo$8b
o3bo2bo3bo4bo7bo$5bo5bo6bo6bo3bo2bo4b2o$5b2o4bo2bo3bo6bo6bo5bo$11bo7b
o4bo3bo2bo3bo$12bobo5bo2bo4bobo4b2o$2o5b3o3b2o6b2o$2o4bo3bo$5bo5bo$8b
ob2o7b2o10b2o$5b2o15bob2o5b2o$19bo5bo$14b2o4bo3bo$7bo6b2o5b3o3b2o$7b2o
17bobo$25bo$19b2o4bo2bo4bo$19bo5bo6b2o$22bo3bo2bo$21b2o4bobo4$25b2o$25b2o!

Another edit:

Code: Select all

x = 46, y = 46, rule = B3/S23
13b2o$13b2o4$27b2o$27b2o$17bo$16bobo5bo5b2o$19bo3b2o5b2o$13bo2bo3bo2b
o$12b2o3bo$12bo5bobo12b2o$19bo14b2o8b2o$8b2o34b2o$8b2o$35bobo$5b2o27b
o3bo$5b2o26bo3bo$21bo2bo7bo3bo$21bo2bo8bobo$8b2o9b2ob2ob2o$9b2o10bo2b
o$21bo2bo10b2o$19b2ob2ob2o9b2o$10bobo8bo2bo$9bo3bo7bo2bo$8bo3bo26b2o$
7bo3bo27b2o$8bobo$36b2o$2o34b2o$2o8b2o14bo$11b2o12bobo5bo$28bo3b2o$22b
o2bo3bo2bo$14b2o5b2o3bo$14b2o5bo5bobo$28bo$17b2o$17b2o4$31b2o$31b2o!

[wwei47]

There's the P9 version.

Code: Select all

x = 30, y = 30, rule = B3/S23
8bob2o4b2obo$8b2o2bo2bo2b2o$6b2o3bo4bo3b2o$5bo3b2ob4ob2o3bo$6b3obobo2b
obob3o$8bobo6bobo6bo$12b4o9bobo$3bo5b2o6b2o6bobo$2bobo19b2o2b2o$2bobo
8b2o7bo3bobo$2o2b2o16bob3o2bo$bobo3bo6b2o11bobo$o2b3obo5bo2bo6bob2obo
$obo9bo4bo2bo2bo2bo$bob2obo4bo6bobo2bo2bo$3bo2bo2bobo6bo4bob2obo$3bo2b
o2bo2bo4bo9bobo$bob2obo6bo2bo5bob3o2bo$obo11b2o6bo3bobo$o2b3obo16b2o2b
2o$bobo3bo7b2o8bobo$2o2b2o19bobo$2bobo6b2o6b2o5bo$2bobo9b4o$3bo6bobo6b
obo$8b3obobo2bobob3o$7bo3b2ob4ob2o3bo$8b2o3bo4bo3b2o$10b2o2bo2bo2b2o$
10bob2o4b2obo!

[praosylen]

Edit: I found this.

Code: Select all

x = 44, y = 44, rule = B3/S23
17b2o$17b2o4$14bobo4b2o$14bo2bo3bo$10b2o6bo5bo$10bo4bo2bo4b2o$18bo$15b
obo17b2o$15b2o3b3o5b2o6bo$19bo3bo4b2o$18bo5bo$11b2o5b2obo15b2o$11b2o10b
2o7b2obo$32bo5bo$33bo3bo4b2o$21b2o6b2o3b3o5b2o$7b2o4bobo4bo2bo5bobo$8b
o3bo2bo3bo4bo7bo$5bo5bo6bo6bo3bo2bo4b2o$5b2o4bo2bo3bo6bo6bo5bo$11bo7b
o4bo3bo2bo3bo$12bobo5bo2bo4bobo4b2o$2o5b3o3b2o6b2o$2o4bo3bo$5bo5bo$8b
ob2o7b2o10b2o$5b2o15bob2o5b2o$19bo5bo$14b2o4bo3bo$7bo6b2o5b3o3b2o$7b2o
17bobo$25bo$19b2o4bo2bo4bo$19bo5bo6b2o$22bo3bo2bo$21b2o4bobo4$25b2o$25b2o!

Another edit:

Code: Select all

x = 46, y = 46, rule = B3/S23
13b2o$13b2o4$27b2o$27b2o$17bo$16bobo5bo5b2o$19bo3b2o5b2o$13bo2bo3bo2b
o$12b2o3bo$12bo5bobo12b2o$19bo14b2o8b2o$8b2o34b2o$8b2o$35bobo$5b2o27b
o3bo$5b2o26bo3bo$21bo2bo7bo3bo$21bo2bo8bobo$8b2o9b2ob2ob2o$9b2o10bo2b
o$21bo2bo10b2o$19b2ob2ob2o9b2o$10bobo8bo2bo$9bo3bo7bo2bo$8bo3bo26b2o$
7bo3bo27b2o$8bobo$36b2o$2o34b2o$2o8b2o14bo$11b2o12bobo5bo$28bo3b2o$22b
o2bo3bo2bo$14b2o5b2o3bo$14b2o5bo5bobo$28bo$17b2o$17b2o4$31b2o$31b2o!

The p24 one is known, but I haven't seen the p64 one before, nice one.

[MathAndCode]

The p24 one is known, but I haven't seen the p64 one before, nice one.

Most block catalyses work as long as there is sufficient clearance, so it's probably possible to make a conduit loop or set of conduit loops in order to allow hassling at any period above some arbitrarily high number using a suitable conduit, such as WNW−3T100 (with multiple signals every period for numbers that are not one less than a multiple of five).

[cvojan]

Massive reduction of 1320P7:

Code: Select all

x = 120, y = 24, rule = B3/S23
14b2o2b2o$14bo3bo5bo11bo11b2o6b2o2b2o$11b2obobobo4bobo3b2o5b3o10bo5bob
o2b2o3b2o$11bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bobo3b2o16bo6b2o7b2o$8b
2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o9bobo5bo9bo$7bobob2o2b2o
3bo4bo3b4o6b4obo7bobo8b2obob2obo4bobo10bobob2obo9bob2obo$9bo9b2ob2o3b
2o3bob5o4bobo8bob2o2b2o4bobobob2o2bo9b3o2b2obob2o7b2obob2o$8bob3o7bobo
b3o2b2o3b3obo2bob2obob2o2bobobo2b3o4bo3bo3bobo4bobobo3b2o8bo3bo8b2o3b
2o$6bobo2bo2b5obobobo2bo12bobo6bo4bobob3o2b2o3bobo2bo2bobobo7bo2bob5ob
o3bob5obo2bobo2bo$bob3obo4bo6bo2b2o2b2obob2ob2o2bob2ob2obo2b2o5b3o8b4o
bobob2o3bo4bo2bob2o4bo2bobo2bo4b2obo3bobo$5b3o4bo4bob2o2bo2b2obob2ob2o
3b2o2bo6bobob2o4bobo8b2o2bobo4b2o2b2obo3b4o2b2ob2o2b4o3bob2obo$o7b2o5b
obobo2bo5b4o3b2o3bo14bob2ob3o3bo4b2o3bo12b2o2bo2bo3bobo3bo2bo2b2o2bo$o
7b2o5bobobo2bo5b4o3b2o3bo14bob2ob3o3bo4b2o3bo12b2o2bo2bo3bobo3bo2bo2b
2o2bo$5b3o4bo4bob2o2bo2b2obob2ob2o3b2o2bo6bobob2o4bobo8b2o2bobo4b2o2b
2obo3b4o2b2ob2o2b4o3bob2obo$bob3obo4bo6bo2b2o2b2obob2ob2o2bob2ob2obo2b
2o5b3o8b4obobob2o3bo4bo2bob2o4bo2bobo2bo4b2obo3bobo$6bobo2bo2b5obobobo
2bo12bobo6bo4bobob3o2b2o3bobo2bo2bobobo7bo2bob5obo3bob5obo2bobo2bo$8bo
b3o7bobob3o2b2o3b3obo2bob2obob2o2bobobo2b3o4bo3bo3bobo4bobobo3b2o8bo3b
o8b2o3b2o$9bo9b2ob2o3b2o3bob5o4bobo8bob2o2b2o4bobobob2o2bo9b3o2b2obob
2o7b2obob2o$7bobob2o2b2o3bo4bo3b4o6b4obo7bobo8b2obob2obo4bobo10bobob2o
bo9bob2obo$8b2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o9bobo5bo9bo$
11bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bobo3b2o16bo6b2o7b2o$11b2obobobo
4bobo3b2o5b3o10bo5bobo2b2o3b2o$14bo3bo5bo11bo11b2o6b2o2b2o$14b2o2b2o!

[wwei47]

Massive reduction of 1320P7:

Correct me if I'm wrong, but isn't that the single largest reduction to ever happen to any oscillator or spaceship (except maybe the self-constructing or self-supporting ones)? Congratulations, and that should totally be added to the wiki.

[JP21]

Minimum population reduction is now 748:

Code: Select all

x = 24, y = 116, rule = B3/S23
8b2o4b2o$7b2ob4ob2o$7b2ob4ob2o$7bo2b4o2bo$4bo4b6o4bo$4b3o10b3o$9bo4bo$
2b4obobo4bobob4o$2bo2bobob2o2b2obobo2bo$3bo4b2o4b2o4bo$3o4bo8bo4b3o$o
2b3obobo4bobob3o2bo$2bo2bo4b4o4bo2bo$3bo7b2o7bo$3o5b3o2b3o5b3o$o4bo4b
4o4bo4bo$5bobo8bobo2$4bob4o4b4obo$2b3obo10bob3o$bo5bobob2obobo5bo$2bob
2obob2o2b2obob2obo$3b2o2bobo4bobo2b2o$6bo10bo$3b2obobo6bobob2o$3bobobo
8bobobo$5bobobo4bobobo$5bo2b2o4b2o2bo$3bob2o2bo4bo2b2obo$2bobo4bo4bo4b
obo$2bobob2obo4bob2obobo$b2obo2bobo4bobo2bob2o$4b2o2b2o4b2o2b2o$4bo3bo
6bo3bo$2bobob3o6b3obobo$2b2obob2o6b2obob2o$5bob2o2b2o2b2obo$5bo4bo2bo
4bo$4b2o2b3o2b3o2b2o$3bo7b2o7bo$3b3obob2o2b2obob3o$6b3o6b3o$3b2o2bo8bo
2b2o$3bo16bo$bobo3bobo4bobo3bobo$b2o6b2o2b2o6b2o$11b2o$9b2o2b2o$4b2o2b
obo2bobo2b2o$4bo2b4o2b4o2bo$5b3o8b3o$11b2o$5b5o4b5o$4bobo2bob2obo2bobo
$4bo5b4o5bo$b2obo4bob2obo4bob2o$obobo2b4o2b4o2bobobo$obobobobo6bobobob
obo$bo2bob2o2b4o2b2obo2bo$4bo5b4o5bo$5b2o10b2o$2b3o14b3o$2bo2b2o10b2o
2bo$3b2o2b2obo2bob2o2b2o$5b2obo2b2o2bob2o$5bo12bo$6b12o$3b3o3b2o2b2o3b
3o$3bo2b3o6b3o2bo$6bo3bo2bo3bo$7b3o4b3o$10bo2bo$5b3obo4bob3o$4bo2b4o2b
4o2bo$4b2o4b4o4b2o2$8b2o4b2o$7bo2bo2bo2bo$8bobo2bobo$9bo4bo3$6b2ob2o2b
2ob2o$6bobobo2bobobo$4bobobobo2bobobobo$3bobobobo4bobobobo$4bo2bo8bo2b
o$5b2ob8ob2o$6bobo6bobo$5bo4bo2bo4bo$5b2obobo2bobob2o$8bobo2bobo$3b4ob
o6bob4o$3bo2bobo6bobo2bo$7b2o6b2o$8bobo2bobo$8bob4obo2$8bob4obo$8bobo
2bobo$7b2o6b2o$3bo2bobo6bobo2bo$3b4obo6bob4o$8bobo2bobo$5b2obobo2bobob
2o$5bo4bo2bo4bo$6bobo6bobo$5b2ob8ob2o$7bo8bo$7bobo4bobo$8bobo2bobo$10b
o2bo$8bob4obo$7bobo4bobo$7bo2bo2bo2bo$8b2o4b2o!

Also:

Code: Select all

x = 18, y = 36, rule = B3/S23
5b2o4b2o$4bo2bo2bo2bo$4bobo4bobo$5bob4obo$7bo2bo$5bo6bo$4bob6obo$4bo3b
2o3bo$2b2ob2o4b2ob2o$3bo2bo4bo2bo$2bo2bob4obo2bo$2b2obobo2bobob2o$5bob
o2bobo$4obob4obob4o$o2bob2o4b2obo2bo2$4b2obo2bob2o$6b6o2$6b6o$4b2obo2b
ob2o2$o2bob2o4b2obo2bo$4obob4obob4o$5bobo2bobo$2b2obobo2bobob2o$2bo2bo
b4obo2bo$3bo2bo4bo2bo$2b2ob2o4b2ob2o$4bo3b2o3bo$4bob6obo$5bo6bo$3bobob
o2bobobo$2bobo2b4o2bobo$2bobobo4bobobo$3b2ob2o2b2ob2o!