Thread for your unsure discoveries

[PK22]

You can also use the same constellation to 'hammer' an HWSS to an MWSS with an extra Herschel:

Code: Select all

x = 112, y = 55, rule = B3/S23
48bobo$47bo$47bo$47bo2bo$47b3o15$64bo$64bobo$64b2o2$b6o$o5bo$6bo$o4bo
$2b2o2$48bo$32b2o13bobo$32bo13bo2bo$33b3o11bo62b2o$35bo74b2o$51bo$41b
2o7bo$41b2o16$41b3o$43bo$43b2o!
[[ STOP 183 ]]

Possibly there's a way to remove the extra blinker with an appropriate FNG eater or 180-degree reflector.

You can use an SW-13 to delete the blinker. Here's a solution with RT 285 (including the time needed to reset the mechanism using G+LWSS):

Code: Select all

x = 235, y = 189, rule = B3/S23
156bobo$155bo$155bo$155bo2bo$155b3o75$232bo$232bobo$232b2o62$4b2o137b
6o$4ob2o135bo5bo$6o142bo$b4o137bo4bo$144b2o2$156bo$140b2o13bobo$140bo
13bo2bo$141b3o11b2o$143bo$158b2o$149b2o7b2o$149b2o11$159b2o$122bo36b2o
$122b3o$125bo$124b2o$119b2o33b2o$119b2o33b2o4$114b2o$114b2o5$117b2o22b
2o$118bo22bo$115b3o3b2o5b2o12b3o$115bo6bo5bo15bo$119b3o7b3o$119bo11bo!

If you want an FNG output as well, this is probably the best SW-13 to use:

Code: Select all

x = 32, y = 57, rule = B3/S23
15b6o$14bo5bo$20bo$14bo4bo$16b2o2$28bo$12b2o13bobo$12bo13bo2bo$13b3o
11b2o$15bo$30b2o$21b2o7b2o$21b2o5$13bo$11b3o$10bo$10b2o2$8bo$7bobo$7bo
bo$8bo6$2b2o$bobo$bo$2o2$7b2o$8bo$8bobo$9b2o3$24b2o$24bobo$26bo$9b2o
15b2o$8bobo$8bo$7b2o$22b2obo$22b2ob3o$28bo$22b2ob3o$23bobo$23bobo$24bo
!

[splitterrules]

Can this be completed? (See gen 14)

Code: Select all

x = 13, y = 11, rule = B3/S23
6b2o$6bo4b2o$8bo2b2o$7b2o$6bo2b4o$5bobobo2bo$5bobo$ob2obob2o$2obobo4b
2o$5bo4bobo$5b2o3bo!

[russellsprouts]

Code: Select all

x = 205, y = 218, rule = B3/S23
8$13bo$12b3o$11b2o2bo$10b2o2b2o$11b2o$12b5o$16b2o$14bo2bo$15b2o12b2o$
29b2o4$13b3o$13bobo$13bo$13bo2bo20b2o$14bobo20b2o$15b3o$17b2o$11b3o4b
2o$17b2o7$17b2o$17b2o8$33bo$32b2o$32bobo14$49bo$48b2o$48bobo14$65bo$
64b2o$64bobo14$81bo$80b2o$80bobo14$97bo$96b2o$96bobo14$113bo$112b2o$
112bobo14$129bo$128b2o$128bobo14$145bo$144b2o$144bobo14$161bo$160b2o$
160bobo14$177bo$176b2o$176bobo14$193bo$192b2o$192bobo!

Block-laying switch engine cleaned up with a p64 glider stream from behind. Could be useful for a cheap elbow push for medium distances if your construction arm allows for gliders spaced this close together.

The pattern forms from just a switch engine and the glider stream

Code: Select all

x = 115, y = 126, rule = B3/S23
13$6bobo$5bo$6bo2bo$8b3o38$40b3o$40bo$41bo14$56b3o$56bo$57bo14$72b3o$
72bo$73bo14$88b3o$88bo$89bo14$104b3o$104bo$105bo!

I tried to find a version that works at p128, but nothing so far. Here's one interesting way to change the ash:

Code: Select all

x = 482, y = 447, rule = B3/S23
46$94bo$80bobo6bo2b4o$79bo9bob4o$80bo2bo6b3o3b2o$82b3o9bo2b2o$95bob2o$
96bo8b2o$105b2o6$105b3o$103bo4bo$105bob2o$102b3o16bo$95bo24bobo$85b2o
9bobobo19bobo$85b2o5b5o3bo20bo$93b2o2bo2bo$98b2o16b2o7b2o$115bo2bo5bo
2bo$116b2o7b2o$105b3o$121bo$120bobo$120bobo$99b3o19bo$99bo$100bo2$137b
o$136bobo$136bobo$116b3o18bo2$103bo28b2o7b2o$102bobo26bo2bo5bo2bo$102b
o2bo26b2o7b2o$103b2o16b3o$137bo$136bobo$136bobo$137bo4$153bo$152bobo$
152bobo$132b3o18bo2$119bo28b2o7b2o$118bobo26bo2bo5bo2bo$118bo2bo26b2o
7b2o$119b2o16b3o$153bo$152bobo$152bobo$131b3o19bo$131bo$132bo2$169bo$
168bobo$168bobo$148b3o18bo2$135bo28b2o7b2o$134bobo26bo2bo5bo2bo$134bo
2bo26b2o7b2o$135b2o16b3o$169bo$168bobo$168bobo$169bo4$185bo$184bobo$
184bobo$164b3o18bo2$151bo28b2o7b2o$150bobo26bo2bo5bo2bo$150bo2bo26b2o
7b2o$151b2o16b3o$185bo$184bobo$184bobo$163b3o19bo$163bo$164bo2$201bo$
200bobo$200bobo$180b3o18bo2$167bo28b2o7b2o$166bobo26bo2bo5bo2bo$166bo
2bo26b2o7b2o$167b2o16b3o$201bo$200bobo$200bobo$201bo4$217bo$216bobo$
216bobo$196b3o18bo2$183bo28b2o7b2o$182bobo26bo2bo5bo2bo$182bo2bo26b2o
7b2o$183b2o16b3o$217bo$216bobo$216bobo$195b3o19bo$195bo$196bo2$233bo$
232bobo$232bobo$212b3o18bo2$199bo28b2o7b2o$198bobo26bo2bo5bo2bo$198bo
2bo26b2o7b2o$199b2o16b3o$233bo$232bobo$232bobo$233bo7$228b3o2$215bo$
214bobo$214bo2bo$215b2o16b3o4$227b3o$227bo$228bo5$244b3o2$231bo$230bob
o$230bo2bo$231b2o20$259b3o$259bo$260bo30$291b3o$291bo$292bo30$323b3o$
323bo$324bo30$355b3o$355bo$356bo30$387b3o$387bo$388bo30$419b3o$419bo$
420bo30$451b3o$451bo$452bo!

[I6_I6]

This has got to be known, right? P-to-G+block:

Code: Select all

x = 4, y = 9, rule = B3/S23
2o$2o5$b3o$bo$b3o!

[Anivec]

This has got to be known, right? P-to-G+block:

Code: Select all

x = 4, y = 9, rule = B3/S23
2o$2o5$b3o$bo$b3o!

It's known.

[dvgrn]

This has got to be known, right? P-to-G+block:

Code: Select all

x = 4, y = 9, rule = B3/S23
2o$2o5$b3o$bo$b3o!

See three-block shifter. Discovered either in 1994 or in 1973, depending on how you count it.

[WhiteHawk]

A very useless B-on-B B turner that I wish could actually be made into a conduit - all it would use is the 3-cell suppression shown here

Code: Select all

x = 49, y = 4, rule = B3/S23
o47bo$2o45b2o$b2o43b2o$2o45b2o!

[TigerCub414]

A very useless B-on-B B turner that I wish could actually be made into a conduit - all it would use is the 3-cell suppression shown here

Code: Select all

x = 49, y = 4, rule = B3/S23
o47bo$2o45b2o$b2o43b2o$2o45b2o!

This is the core mechanism of the R64, as it takes 64 ticks to turn a B-heptomino to the right.

Code: Select all

x = 81, y = 25, rule = LifeHistory
19.3D5.3D37.3D$20.D7.D39.D$20.3D3.3D37.3D6$A47.A$2A8.D27.D8.2A29.D$.
2A5.3D27.3D5.2A30.3D$2A6.D.D27.D.D6.2A29.D.D$8.D31.D39.D4$59.2A$59.2A
$65.2A$65.2A3$63.2A$63.2A5.2A$70.2A!

[ray1234]

An adjustable crawler:

Code: Select all

x = 36, y = 56, rule = B3/S23
33b2o$32bo2bo$33bobo$34bo14$24b2o$23bo2bo$24bobo$25bo14$15b2o$14bo2bo
$15bobo$16bo14$6b2o$5bo2bo$b2o3bobo$obo4bo$2bo!

In this form, which I believe to be the smallest, it is moving at (9, 17)c/115.

[WhiteHawk]

An adjustable crawler:

Code: Select all

In this form, which I believe to be the smallest, it is moving at (9, 17)c/115.

It's more of a fuse, though

[ray1234]

It's more of a fuse, though

But I'm pretty sure one could use to massive side sparks to create rakes, and the loaves are rather cheap.
One could also slow the chain down easily by just adjusting the spacing.

[b-engine]

Code: Select all

x = 67, y = 79, rule = B3/S23
30b2o$30b2o10$28b2o3b2o2$29bo3bo$30b3o$30b3o3$33bo$32b3o$31bo3bo$33bo
$30bo5bo$30bo5bo$31bo3bo$32b3o5$22b2o19b2o$20bo3bo17bo3bo$11bo7bo5bo15b
o5bo7bo$11bobo4b2obo3bo15bo3bob2o4bobo$14b2o3bo5bo15bo5bo3b2o12b2o$2o
12b2o4bo3bo17bo3bo4b2o12b2o$2o12b2o6b2o19b2o6b2o$11bobo39bobo$11bo43b
o2$11bo43bo$11bobo39bobo$2o12b2o6b2o19b2o6b2o$2o12b2o4bo3bo17bo3bo4b2o
12b2o$14b2o3bo5bo15bo5bo3b2o12b2o$11bobo4b2obo3bo15bo3bob2o4bobo$11bo
7bo5bo15bo5bo7bo$20bo3bo17bo3bo$22b2o19b2o5$32b3o$31bo3bo$30bo5bo$30b
o5bo$33bo$31bo3bo$32b3o$33bo3$30b3o$30b3o$29bo3bo2$28b2o3b2o10$30b2o$
30b2o!

This is a p30 MW emulator unintentionally constructed by the user quoted, while trying to make some "new" guns.

Code: Select all

x = 39, y = 23, rule = B3/S23
12bo13bo$12bobo9bobo$13bobo7bobo$2o11bo2bo5bo2bo11b2o$2o11bobo7bobo11b
2o$12bobo9bobo$12bo6bo6bo$18bobo$17bo3bo$18b3o$16b2o3b2o11$19b2o$19b2o
!

Is this known and being used in hasslers?

[Sober ABC]

Of course, I used it. I didn't know what it was called, but I used it. It can be used in four directions. But it can't be used in two directions. And the second of the smallest cannons... Well, I experimented with it too. Just out of curiosity. I wasn't looking for anything new... I had already found my MDJ-seed.

[MathAndCode]

Is this p8 stairstep hexomino-hassling reaction known?

Code: Select all

x = 29, y = 26, rule = B3/S23
o$2o26bo$2o25b2o$2o25b2o$2o25b2o$2o25b2o$2o25b2o$bo25b2o$2o6bo18bo$2o
6b2o10bo6b2o$2o5b3o3bo5b2o6b2o$bo6b2o3b2o4b3o5b2o$2o6b2o4b2o3b2o6bo$b
o7bo5bo3b2o6b2o$2o6b2o9bo7bo$bo7bo9b2o6b2o$2o7bo9bo7bo$2o17bo7b2o$2o25b
2o$2o25b2o$2o25b2o$2o25b2o$2o25b2o$2o25b2o$2o25b2o$27b2o!

It seems similar enough to the p5 stairstep hexomino-hassling reaction to plausibly be already known, but searching the forums for p8 stairstep and p8 LoM did not yield it.
Either way, is there a suitable sparker?

[WhiteHawk]

This has got to be known, right? P-to-G+block:

Code: Select all

See three-block shifter. Discovered either in 1994 or in 1973, depending on how you count it.

Also see period-156 glider gun

Code: Select all

x = 42, y = 42, rule = B3/S23
20b2o$20b2o5$21b3o$21bo$21b3o10$33bobo$33bobo$2o31b3o4b2o$2o4b3o31b2o
$6bobo$6bobo10$18b3o$20bo$18b3o5$20b2o$20b2o!

Maybe there is a way to alter the period, though?

EDIT: Interesting comparison reveals that the glider emitted if the Pi-block runs it's course ends up on the same lane, but delayed by several ticks, as the farther glider in the gun

Code: Select all

x = 42, y = 42, rule = DoubleB3S23
20.2C$20.2C5$21.3C$21.C$21.3C10$33.A.A$33.A.A$2A31.3A4.2A$2A4.3A31.2A
$6.A.A$6.A.A10$18.3A$20.A$18.3A5$20.2A$20.2A!

[Citation needed]

Pi on pi:

Code: Select all

x = 15, y = 24, rule = B3/S23
2b2o7b2o$bo2bo5bo2bo$o4bo3bo4bo$o3bo5bo3bo2$5bo3bo$4bob3obo$4bo5bo$4b
o2bo2bo$4b2o3b2o2$2b2o7b2o$5b5o$bo2bo5bo2bo$bob3o3b3obo$bo3bo3bo3bo$3b
ob2ob2obo$5bo3bo$b3o3bo3b3o$2o4b3o4b2o$2obo7bob2o$2bo2b5o2bo$2ob2o5b2o
b2o$7bo!

This is called a "dead spark coil".

[MathAndCode]

Is this p4 hassler of a loaf predecessor known?

Code: Select all

x = 44, y = 44, rule = B3/S23
11bo$4bo5bob2o$3bobo4bob2o$3bobo2b2o2bo3bo$2obobobo5b2o2bo$obobob2ob2o
2bo3bo$2bobo4b2o3b6o$bob2o2b2o6bo3bo$o2b3obobo2bob3o3b2o$2o5bob2obo3bo
$3b2o2b2obobob2ob3ob2o$4obobo2b2obobobo6bo$o2bobobobo3bo4b3obo$bobo2bo
2b2ob2o6b3o$2ob2obobo13bo3b3o$bobo2bo2b2ob2o6b3o5b2o$o2bobobobo3bo4b3o
bo6bo$4obobo2b2obobobo6bo4bo$3b2o2b2obobob2ob3ob2o$2o5bob2obo3bo9bo5bo
$o2b3obobo2bob3o3b2o$bob2o2b2o6bo3bo5bob5obo$2bobo4b2o3b6o3bobo2bobo2b
obo$obobob2ob2o2bo3bo5bo3b2ob2o3bo$2obobobo5b2o2bo3b2o2bobo3bobo2b2o$
3bobo2b2o2bo3bo4bo3bobo3bobo3bo$3bobo4bob2o5b3o3b2o5b2o3b3o$4bo5bob2o
4bo2bob2o9b2obo2bo$11bo9b3ob2o5b2ob3o$19bobobobo7bobobobo$16b2ob2o5b3o
b3o5b2ob2o$16b3o4b3o2bobo2b3o4b3o$15bo10bo5bo10bo$16b2o2b2o2b3obobob3o
2b2o2b2o$18bob2ob2o2b2ob2o2b2ob2obo$18bo3bo2bo3bo3bo2bo3bo$19b2ob6o3b
6ob2o$20bo7b3o7bo$17b3o3bo2b2o3b2o2bo3b3o$16bo3b4obo3bo3bob4o3bo$17b3o
2b2ob9ob2o2b3o$20b2o4bo5bo4b2o$19bo2bobobob3obobobo2bo$19b2o2b2ob2obob
2ob2o2b2o!

It's not in jslife/osc/o0004.lif (although I got the p4 sparker that I used from jslife/osc/o0004-spark1.lif), but maybe there was a size limit on entries.



Edit: The fishhook-supported boat catalyst yields a way to stabilize p4 single superstrings.

Cis:

Code: Select all

x = 17, y = 13, rule = B3/S23
o15bo$3o3b2ob2o3b3o$3bo2b2ob2o2bo$2bo11bo$2bo11bo2$3bo9bo$2bob9obo$2b
2o9b2o$6b2ob2o$7bobo$7bobo$8bo!

Code: Select all

x = 18, y = 13, rule = B3/S23
o16bo$3o3b2o2b2o3b3o$3bo2b2o2b2o2bo$2bo12bo$2bo12bo2$3bo10bo$2bob10ob
o$2b2o10b2o$6b2o2b2o$7bo2bo$6bo4bo$6b2o2b2o!

Trans:

Code: Select all

x = 17, y = 13, rule = B3/S23
8bo7bo$7bobo4b3o$7bobo3bo$3bo2b2ob2o3bo$2bobo9bo$2bo$3bo9bo$4b9obo$13b
2o$2b2o2b2ob2o$3bo3bobo$3o4bobo$o7bo!

Code: Select all

x = 18, y = 13, rule = B3/S23
8bo8bo$7bobo5b3o$7bobo4bo$3bo2b2ob2o4bo$2bobo10bo$2bo$3bo10bo$4b10obo
$14b2o$2b2o3b2ob2o$3bo4bobo$3o5bobo$o8bo!

Code: Select all

x = 19, y = 13, rule = B3/S23
8bo9bo$7bobo6b3o$7bobo5bo$3bo2b2ob2o5bo$2bobo11bo$2bo$3bo11bo$4b11obo
$15b2o$2b2o4b2ob2o$3bo5bobo$3o6bobo$o9bo!

Code: Select all

x = 20, y = 13, rule = B3/S23
8bo10bo$7bobo7b3o$7bobo6bo$3bo2b2ob2o6bo$2bobo12bo$2bo$3bo12bo$4b12ob
o$16b2o$2b2o5b2ob2o$3bo6bobo$3o7bobo$o10bo!

[nlevine]

I believe the below is a cheaper (169) glider synthesis of the 23-cell still life xs23_09fg4cz259a5113 than the 173 gliders listed on catagolue - a saving of four gliders. What's the best way to get external verification? Thanks!

Code: Select all

x = 2266, y = 57, rule = B3/S23
bo$2bo$3o$$$$$$33bo$32bo422bo$32b3o4bo413bobo$38bo415b2o$38b3o$$413bo$
411b2o$412b2o50bo156bo$302bo162bo67bo88b2o365bo$302bobo39bo61bo56b3o66bo88b2o364bobo$
302b2o40b2o4bo56bo119bo4b3o453b2o$299bo43bobo2b2o55b3o51b3o64bo465bo$297bobo49b2o110bo64b3o463bobo88bo$
298b2o5bo154bo72bo90bobo56bobo300bo5b2o87bobo$22bo280b2o103bo123bo92b2o57b2o107bobo139bo51b2o41bo51b2o636bobo392bo$
20b2o96bo185b2o48b2o52b2o122b3o90bo58bo102bobo3b2o138bobo50b2o43bo689b2o391bo$
21b2o93bobo234b2o52bobo211b2o165b2o4bo139b2o93b3o689bo294bo97b3o$117b2o130bobo103bo264bobo165bo292bo3b2o641bo238bo49b2o243bo$
74b2o47b2o37b2o40b2o44b2o7b2o37b2o46b2ob2o68b2o41b3o13b2o32b2o4b2o7b2o40b2o4b2o45bo6bo5b2o4b2o49b2o56b2o44b2o38b2o6b2o43b2o6b2o46b2o48b2o42b2o4b2o35bo2bobo4b2o43b2o47b2o44b2o52b2o32bobo20b2o42b2o42b2o50b2o43b2o46b2o58b2o48b2o38bobo9b2o38b2o39b2o40b2o47b2o45b2o6b2o6bo35b2o5b2o3bobo35b2o42b2o53b2o49b2o42b2o7bobo$
21b2o50bobo7b2o37bobo2bo35bo2bo38bo2bo41bo9bo2bo35bo2bo44bobo66bo2bo44bo10bo2bo33bo2bo2bo8bobo39bo2bo2bo54bo4bo2bo2bo47bo2bo57bo45bo39bo7bo44bo7bo33b3o4b2o5bo43bo5bo44bo4bo34b3o4bo4bo38b2o4bo42b2o4bo39b2o4bo47b2o4bo34b2o14b2o4bo37b2o4bo37b2o4bo45b2o4bo38b2o4bo41b2o4bo53b2o4bo43b2o4bo40b2o3b2o4bo39bo40bo41bo48bo46bo8b2o3b2o36bo11b2o36bo43bo54bo50bo43bo8b2o$
21bobo49bobob2o4bobo36bobobobo34bobobo37bobobo50bobobo32bobobobo41bobobo65bobobo43bo10bobobo34b2obobo8bo42b2obobo52b3o5b2obobo46bobobo51b2ob2obo35bo3b2ob2obo40b3ob2obo34bo10b3ob2obo35bo4bobob2obo42bobob2obo44bob2obo40b2ob2obo38bo2b2obo42bo2b2obo39bo2b2obo33bobo11bo2b2obo34bo15bo2b2obo37bo2b2obo37bo2b2obo45bo2b2obo38bo2b2obo41bo2b2obo53bo2b2obo43bo2b2obo45bo2b2obo36b2obo37b2obo38b2obo45b2obo43b2obo14b2o32b2obo12bo33b2obo6b2o32b2obo6b2o43b2obo47b2obo40b2obo$
21bo50b2obob2o4bo37b2obobobo30bob2o2bobo33bob2o2bobo37bo8bob2o2bobo31bobo2bobo40bobo2bob2o61bobo2bob2o47b2obobo2bob2o33bo2bob2o50bo2bobo60bo2bobo43bobo2bobo49b2obo2bobo31bobo2bobobo2bobo40bobo2bobo33bo11bobo2bobo32bo7bobo2bobo40bobobo2bobo39b2obobo2bobo37bo3bo2bobo32bo4bobo2bobo42b2o2bobo39b2o2bobo32b2o13b2o2bobo50b2o2bobo36b3o2bobo36b3o2bobo44b3o2bobo32bo4b3o2bobo40b3o2bobo52b3o2bobo42b3o2bobo44b3o2bobo34bo2bobo35bo2bobo36bo2bobo43bo2bobo41bo2bobo46bo2bobo2b2o40bo2bobo3bobo32bo2bobo3bobo43bo2bobo45bo2bobo2b2o34bo2bobo2b2o$
71bo2bo45bo2bo3bo31b2obobobo34b2obobobo36bobo8b2obobobo31bo2bobobo40bo2bobobobo60bo2bobobobo47bob2obobobobo33bobobobo50bobobobo59bobobobo41bo2bobobobo51bobobobo31b2o3bo2bobobobo41bobobobo30b3o15bobobo38b2o3bobobo40b2o3bobobo34bo3bob2o3bobobo37b2o3bobobo32bo2b2o3bobobo44bobobo30bobo8bobobo31bo17bobobo52bobobo39bobobo39bobobo47bobobo32bo7bobobo43bobobo55bobobo45bobobo47bobobo35bobobo36bobobo37bobobo44bobobo42bobobo47bobobo2bo42bobobobo37bobobobo48bobobob2o6bo36bobobo2bo36bobobo2bo$
71b2o7b2o38b2o42bo41bo39b2o2b2o8bobo32b2o2bobo10bo30b2o2bobo63b2o2bobo56bobo37bobo54bobo2bo60bobo2bo30bo10b2o2bobo2bo51b2obo2bo39b2obo2bo41b2obo2bo45b3obo2bo40b3obo2bo30bo11b3obo2bo34b2o6b3obo2bo30b3o6b3obo2bo30b3o4b3obo2bo41b3obo2bo31b2o5b3obo2bo46b3obo2bo49b3obo2bo37b2obo2bo37b2obo2bo45b2obo2bo30b3o5b2obo2bo41b2obo2bo53b2obo2bo43b2obo2bo36bo8b2obo2bo31b4obo2bo32b4obo2bo33b4obo2bo40b4obo2bo5bo32b4obo2bo43b4obo2b2o40b4obo2b2o34b4obo2b2o8bo36b4obo2b2obo4b2o33b4obo2bobo33b4obo2bobo4bo$
81b2o80b2o41b2o43b2o8bo38bo3b2o4b2o36bo69bo58bo39bo56bo3b2o61bobo32b2o14bobo45b3o7bobo43bobo45bobo35b3o8bo3bobo41bo3bobo32b2o4b2o3bo3bobo34bobo6bo3bobo33bo6bo3bobo38bo3bobo42bo3bobo32bo5bo4bobo46bo4bobo49bo2bobobo37bobobobo37bobobobo47bobobo40bobobo43bobobo55bobobo6bobo36bobobo35bobo8bo2bobo31bo2bo2bobo33bo2bobobo34bo2bobobo41bo2bobobo6bobo30bo2bobobob2o41bo2bobobo42bo2bobobo36bo2bobobo9b2o36bo2bobobo9b2o32bo2bobobobo34bo2bobobobo5bobo$
80bo35b3o86b3o42bo52bobo5b2o253bo65b2o7b2o32b2o15b2o46bo9b2o44b2o46b2o38bo12b2o46b2o32b2o5bobo6b2o48b2o33bo11b2o43b2o47b2o39b2o3b2o48bo3b2o39b2o4bo5bobob2o37bo2bob2o38bobob2o33bo8bo3bobob2o40bo2b2o44bob2o56bob2o7b2o34bob2obob2o35b2o10b2ob2o30b2o3b2ob2o36b2ob2o38bob2o44bo2b2o5b2o35bo2bobo7b2o37bo2bo46bo2bo41bobo4b2o3bobo40bobo48bobo41bo2bo6b2o$
118bo6b3o77bo99bo224b2o35bo63b2o49b2o57bo96bo44bo102bo236bo54bo2b2o43bobo3b2o6bo37bo3bobo43bo38bo5bobo3b2o40bo3bobo47bo59bo10bo35b2obo43b3o129bo50bo2bo43bobo6b2o41b2o48b2o40b2o4bobo46b2o49bobo40b2o$
117bo7bo41b3o36bo322b2o34b3o65bo47bobo155b2o48b2o237b2o94b2o50bobo49bo3bobo43b2o3bo81b3o6b2o43bobo4b2o45bobo60bobo2b3o38bo48bo128b2o52b2o44bo9bo140bo52b2o44bo49b2o$
126bo40bo219b2o128b3o11bo151bo43bo9b3o98b2o49bobo237b2o92b2o52b2o98bobo90b2o48b2o51b2o62b2o2bo88bo43b2o389b2o44bobo45b2o$
163b2o3bo217bobo130bo207b2o10bo149bo140b3o95bo155b2o183bobo170bo91b2o37b2o48bo44bo4bo91b2o197bo46b2o36b2o4b2o4bo$
162bobo223bo129bo3b2o45b3o3bo7bo142bobo9bo293bo149bo101bobo99bo34bo49bo11b2o38b2o55bobo151bobo38bo42bo4bobo36b2o3b2o3b2o41bo49bobo86b2o8bo147bo35bobo4bobo$
164bo237b3o117bobo46bo3b2o6bobo97b3o153b2o190bo150b2o3b2o35bo51b2o6bo95b2o3b2o35b2o4b2o52b2o39bobo54b2o52b2o98bo83b2o3b2o38b2o2bobo2bobo40b2o2b3o43bo89b2o6b2o106b3o76bo4bo$
404bo58b2o57bo47bo3bobo6b2o98bo154bobo340bobo2b2o36b2o51b2o100b2o4bobo33b2o4b2o46b3o6bo38bo57bo53b2o180bobo42bo51bobo2bo40b2o92bo8bobo88bo7b2o7bo$
403bo13b2o43bobo66b3o150bo155bo347bo34bobo50bo104bo47bo47bo96b2o58bo177b2o106bo38bobo96b3o93b2o6bobo7bo$
417bobo44bo66bo39bo11b2o587b2o302bo3b2o91bobo237b2o146bo98bo92bobo6bo$
417bo114bo38b2o9bobo246bo339bobo247b2o56bobo93bo236bo151b2o93bo$480b2o88bobo11bo246b2o340bo248b2o57bo482bobo193bo$
479b2o138b2o209bobo588bo146b2o394bo195b2o$481bo136bobo948b2o578b2o8bobo$
620bo947bo579bobo$1563bo586bo$1563b2o6b3o$617b2o943bobo6bo$616bobo953bo19b3o$
618bo973bo$1593bo3b3o$1597bo$1598bo!

[I6_I6]

I believe the below is a cheaper (169) glider synthesis of the 23-cell still life xs23_09fg4cz259a5113 than the 173 gliders listed on catagolue - a saving of four gliders. What's the best way to get external verification? Thanks!

Code: Select all

snip

Welcome to the Forums!
You can usually trust catagolue to have the smallest known synthesis of an object (unless somebody found a better one really recently and catagolue hasn't updated yet).
To post your synthesis on catagolue, go to https://catagolue.hatsya.com/syntheses, scroll to the bottom, and paste your synthesis RLE in the box below "Post new synthesis".

However, looking closely, your synthesis is invalid. Take a look at step 5:

Code: Select all

x = 9, y = 10, rule = B3/S23
3b2o$4bo2bo$4bobobo$ob2o2bobo$2obobobo$5bo$5b2o$4b3o$4bo$5bo!

It's not rewindable, meaning if you move the glider further away, it'll interact with the object before it can get into the correct position:

Code: Select all

x = 10, y = 13, rule = LifeHistory
3.2A$4.A2.A$4.A.A.A$A.2A2.A.A$2A.A.A.A$5.A$5.2A$4.3D$4.D$5.D$7.3A$7.A
$8.A!

[nlevine]

Thanks for the warm welcome, and the explanation! Will dig in further.

I believe the below is a cheaper (169) glider synthesis of the 23-cell still life xs23_09fg4cz259a5113 than the 173 gliders listed on catagolue - a saving of four gliders. What's the best way to get external verification? Thanks!

Code: Select all

snip

Welcome to the Forums!
You can usually trust catagolue to have the smallest known synthesis of an object (unless somebody found a better one really recently and catagolue hasn't updated yet).
To post your synthesis on catagolue, go to https://catagolue.hatsya.com/syntheses, scroll to the bottom, and paste your synthesis RLE in the box below "Post new synthesis".

However, looking closely, your synthesis is invalid. Take a look at step 5:

Code: Select all

x = 9, y = 10, rule = B3/S23
3b2o$4bo2bo$4bobobo$ob2o2bobo$2obobobo$5bo$5b2o$4b3o$4bo$5bo!

It's not rewindable, meaning if you move the glider further away, it'll interact with the object before it can get into the correct position:

Code: Select all

x = 10, y = 13, rule = LifeHistory
3.2A$4.A2.A$4.A.A.A$A.2A2.A.A$2A.A.A.A$5.A$5.2A$4.3D$4.D$5.D$7.3A$7.A
$8.A!

[Chris857]

The second-to-last step also can not be rewound.

Also, for a synthesis like this where you're making an improvement, just showing the improved steps over what's on catagolue makes it easier to see the change rather than having to guess among a few dozen steps (unless all the steps are new and are part of the improvement - that can happen).

catagolue synthesis updates currently happen every 8 hours shown at https://gitlab.com/hatsya/open-source/c ... kind=BUILD.

I will note regarding syntheses that at least in the 23-bit still life case, syntheses for all of them are known, but some chunk weren't uploaded to catagolue because it would be too many (some technical limitation in catagolue and there are just so many still lifes at that population count). So generally catagolue should be the best reference if a synthesis is shown (and assuming there isn't some other CGOL community with secret syntheses we here don't know about).

[Jormungant]

not 100% new... I mean, I did note a periodic way to turn gliders using a p4 or p5 sparker with the g-to-C in a different way from semi cenarks... but I somehow never though about still using them as semi cenark, which does not turn the glider:

Code: Select all

x = 169, y = 108, rule = LifeHistory
9$104.BA$104.2AB$102.BAB2A$102.3A2BA$103.BABA.A$105.A.ABAB$16.BA88.A
2B3A$16.2AB88.2ABAB$14.BAB2A88.B2A$14.3A2BA88.AB$15.BABA.A82.AB3.B.3B
$17.A.ABAB79.A.A8B$18.A2B3A79.A2B3A3B2A$19.2ABAB72.AB6.B.6B2A$19.B2A
73.B2A7.A5B.B$20.AB74.2AB2.2B3.5B$15.AB3.B.3B71.BA2.5B.ABA$14.A.A8B
73.10B8.A$15.A2B3A3B2A72.6B3A7.3A$8.AB6.B.6B2A71.7BABA2B4.A$7.B2A7.A
5B.B72.11BAB3.2A$8.2AB2.2B3.5B73.5B2A5BAB.4B$8.BA2.5B.ABA75.5B2ABA3BA
4B$10.10B8.A67.6B5A8B$10.6B3A7.3A61.2A2.2AB.18B$9.7BABA2B4.A64.A2.A.A
B.8BAB2ABA5B$9.11BAB3.2A65.2A5.7BA4BA5B$8.5B2A5BAB.4B66.A6.6BAB2ABA5B
$8.5B2ABA3BA4B66.A8.16B$8.6B5A8B64.2A6.3B5A6B$2.2A2.2AB.18B60.2A.A7.
2B2ABA3BA2B$2.A2.A.AB.8BAB2ABA5B60.A.A.4B2.2B2A5BA3B$4.2A5.7BA4BA5B
60.A.A.4A3.8BA6B$5.A6.6BAB2ABA5B61.A.A.2B.B4.2BABA7B2A$3.A8.16B64.A.A
.2A3.3B3A7B2A$3.2A6.3B5A6B65.A2.A3BA2B2.10B.2B$2A.A7.2B2ABA3BA2B67.2A
BA.2BA13B$.A.A.4B2.2B2A5BA3B69.B.2BA12B$.A.A.4A3.8BA6B62.A.2A.3BAB.9B
$2.A.A.2B.B4.2BABA7B2A61.2A.A.3BAB3.7B$4.A.A.2A3.3B3A7B2A66.3B2A4.5B$
2.A2.A3BA2B2.10B.2B67.AB.2A5.4B$2.2ABA.2BA13B72.2A.3A4.4B$5.B.2BA12B
76.BA.A4.5B$.A.2A.3BAB.9B80.A5.5B$.2A.A.3BAB3.7B80.2A5.6B$6.3B2A4.5B
89.4B$6.AB.2A5.4B90.2BAB$7.2A.3A4.4B90.2B2A$10.BA.A4.5B89.2A2B$13.A5.
5B89.4B$13.2A5.6B88.4B$21.4B90.4B$22.2BAB90.4B$23.2B2A90.4B$24.2A2B
90.4B$25.4B90.4B$26.4B90.4B$27.4B90.4B$28.4B90.6B$29.4B90.5B$30.4B11.
A78.3BD$31.4B8.3A7.4B67.BDBDB$32.4B6.A10.4A2B65.2B2DAB$33.4B5.2A8.A4B
AB2A63.5B2A$34.10B8.A4BA3BAB61.4B2A2B20.2B$35.7B9.3B.2AB.2BAB66.4B19.
BAB$31.2A3.3BD3B8.B2A4BA2BAB67.4B16.2B3A$31.A4.BDBD3BAB5.BA2BAB.BA2BA
B68.4B15.B3ABA$33.A.3B2D2BABAB4.BA2BA4B2AB70.4B15.BA2B.A$32.2A8B2A7BA
2B.B2A.3B71.4B16.A.2BAB$31.AB2.16BA3BA4BA73.4B11.A4.AB3AB$30.A.2A12B
3DB2.2ABA4BA74.4B8.3A5.3A2B$29.A2.A.AB.11BDB4.2B4A76.4B6.A8.BAB$29.2A
2.AB3.7BDB2DB6.4B77.4B5.2A8.2B$39.6B2D3B88.10B3.2A3.B.3B$37.5B2.7B88.
7B4.A.2BA6B$37.2A5.8B83.2A3.3BD3B4.A4B2A2B2A$38.A5.9B82.A4.BDBD3BAB3.
A.3BA2B2A$35.3A6.5B.4B83.A.3B2D2BABAB3.B3A2B.B$35.A9.3B3.2BAB81.2A8B
2A4B2.5B$46.B5.2B2A79.AB2.14B.3B$53.2A2B77.A.2A12B3DB$54.4B75.A2.A.AB
.11BDB$55.4B74.2A2.AB3.7BDB2DB$56.4B83.6B2D3B$57.4B80.5B2.7B$58.4B79.
2A5.8B$59.4B79.A5.9B$60.4B75.3A6.5B.4B$61.4B74.A9.3B3.2BAB$62.4B84.B
5.2B2A$63.4B90.2A2B$64.4B90.4B$65.4B90.4B$66.4B90.4B$67.4B90.4B$68.4B
90.4B$69.4B90.4B!