Still Life Synthesis Thread

[ElijahKen]

Thanks! It's fun to see it used more, and thanks for the reduction.
Here is another 1g reduction via better cleanup:

Code: Select all

x = 41, y = 32, rule = B3/S23
11bo$12bo$10b3o3$4bobo18bobo$5b2o18b2o$o4bo20bo$b2o$2o$29bo$29bobo$15b
2o12b2o$15b2o3$11bo$10bobo$11b2o$16b2o$16bobo$18bo$17b2obo$16bo2bobo$
16bobo2bo12bo$15b2o2b2o12b2o$16bo16bobo$15bo$15b2o$38b3o$38bo$39bo!

I'll apply this to the other still lives you mentioned.

[Chris857]

If you manage to wizard up any more component reductions, this is probably the most brutal remaining one I can think of that really looks it should be manageable a lot more cheaply.

Code: Select all

x = 343, y = 248, rule = B3/S23
326bo$108bo216bo$99bo6bobo216b3o$97bobo7b2o$98b2o9$106bo$107b2o$106b2o
$118bobo$119b2o$119bo10$124bo10bobo$122bobo11b2o$123b2o11bo6$136bobo$
137b2o$137bo14bo$147bo5bo$145bobo3b3o$146b2o147bo$294bo$294b3o9$167bo
$168bo$166b3o2$269bo$268bo$268b3o2$163bo$164b2o$163b2o9$173bo$171bobo
$172b2o3$174bobo$175b2o6bo$175bo5bobo$182b2o37$228b2o2b2o$4bo222bo2bo
2bo$3bo223bo2b2o$3b3o222b2o$229bo$226b3o$226bo$6bo$3o2b2o$2bo2bobo$bo
34$179b2o$178bobo$180bo5$171b2o$170bobo$172bo3$166b3o$168bo$161bo5bo$
161b2o$160bobo109b2o$271b2o$273bo10$143b2o$142bobo$144bo3$288b3o$288b
o$141b2o146bo$136b2o2bobo$130b2o5b2o3bo4bo$131b2o3bo10b2o$118bo11bo15b
obo$118b2o173b2o$117bobo172b2o$294bo8$117b3o$119bo$118bo9$106b2o$105b
obo$107bo3$109b2o$108bobo$110bo2$98b2o$99b2o7b2o$98bo10b2o$108bo$326b
3o3b2o$326bo4b2o$327bo5bo6$340b2o$340bobo$340bo$326b2o$326bobo$326bo!

[Entity Valkyrie 2]

Just a little question: can we find a synthesis for this 36-cell still life?

Code: Select all

x = 13, y = 10, rule = B3/S23
6bo$5bobo$4bobobo$bo2bo2bobo$obobo4b3o$bo2b2o2bo3bo$2b2o4b4o$4b4o$4bo
2bobo$8b2o!

If we can, then we can convert it into this p5 oscillator like this:

Code: Select all

x = 30, y = 24, rule = B3/S23
2bo$obo$b2o$9bo$10b2o$9b2o$16bo$14b2o$15b2o$27b2o$26b4o$25b2ob2o$26b2o
$5b2o8bo$6b2o6bobo$5bo7bobobo$10bo2bo2bobo$9bobobo4b3o$10bo2b2o2bo3bo$
11b2o4b4o$13b4o$b2o10bo2bobo$2b2o13b2o$bo!

[Chris857]

If it helps, there's this stator variant

Code: Select all

x = 30, y = 24, rule = B3/S23
2bo$obo$b2o$9bo$10b2o$9b2o$16bo$14b2o$15b2o$27b2o$26b4o$25b2ob2o$26b2o
$5b2o8bo$6b2o6bobo$5bo7bobobo$10bo2bo2bobo$9bobobo4b3o$10bo2b2o2bo3bo
$11b2o4b4o$13b4o$b2o10bo2bo2b2o$2b2o15b2o$bo!

tangentially, xs32_8o65123c4oz346o8gkc32 in 22G from soup

Code: Select all

x = 78, y = 78, rule = B3/S23
4bobo$5b2o$5bo$51bobo$51b2o24bo$52bo22b2o$76b2o$12bobo$13b2o$13bo43bo
$56bo$56b3o$70bo$17bo50b2o$18bo50b2o$16b3o$62bo$62bobo$62b2o$11bo$9bo
bo$10b2o3$3bo$4b2o$3b2o12$38b2o$38b2o12$73b2o$72b2o$74bo3$66b2o$66bob
o$66bo$14b2o$13bobo$15bo$59b3o$7b2o50bo$8b2o50bo$7bo$19b3o$21bo$20bo43b
o$63b2o$63bobo$2o$b2o22bo$o24b2o$24bobo$72bo$71b2o$71bobo!

[ElijahKen]

Just a little question: can we find a synthesis for this 36-cell still life?

Code: Select all

x = 13, y = 10, rule = B3/S23
6bo$5bobo$4bobobo$bo2bo2bobo$obobo4b3o$bo2b2o2bo3bo$2b2o4b4o$4b4o$4bo
2bobo$8b2o!

...

Here is some progress (xs37_660uhe8gz09fgc89a52zx1252 from xs27_kc32ar4koz125a43, also unsynthesized):

Code: Select all

x = 597, y = 129, rule = B3/S23
5$319bo$319bobo$309bo9b2o$308bo$308b3o$318bo$258bo53bo5bobo$256bobo52b
o6b2o$257b2o52b3o5$259bo$260b2o$259b2o63bo$82bobo237b2o$82b2o233bobo3b
2o$83bo226bo6b2o$308b2o8bo$91bo217b2o$89b2o282bobo$63bo26b2o281b2o$64b
2o308bo$57bo5b2o240bo$58b2o229bo13b2o$57b2o230bobo4bo7b2o$117bo12bobo
36bo107bo11b2o4bo$55bo16bo44bobo3bo6b2o38b2o106bo16b3o$56bo13bobo44b2o
3bo8bo37b2o105b3o88bo86bo$54b3o14b2o41bo7b3o184bo55b2o41bo44bo$78bo36b
o62bo41bo70bo15b2o57b2o38bobo44b3o$78bobo32b3o61bo40bobo69bo17b2o97b2o
$78b2o48bo48b3o39b2o3bo65b3o156bobo$127b2o94bo71bo69b2o83b2o$127bobo93b
3o68b2o69bobo41b2o39bo$119b2o173bobo61b2o5bo44b2o3b2o$119bobo56b2o4bo
105bo9bo58bo49bo6bo$121bo6bo48b2o4b2o36bo67bobo7b2o57bo55bo41bo$72bob
2o43bob2o4b2o42b2o6bo3bobo34bobo65bobo8bobo56b2o54b2o39bobo48bo$72b2o
2bo42b2o2bo3bobo40bobo46bobo65bobo70bo7b2o46bo32b2o5bobo43b2obobo$70b
2o3bobo39b2o3bobo45bo48bo67bo15b3o54bo6b2o47bo33b2o6bo43b2obobo$71bo4b
obo39bo4bobo42bob2o45bob2o64bob2o14bo54bob2o7bo44bob2o31bo6bob2o45bob
2o$71bobo3bo40bobo3bo43b2o2bo44b2o2bo63b2o2bo14bo53b2o2bo51b2o2bo37b2o
2bo44b2o2bo$70b2ob4o40b2ob4o42b2o3bobo41b2o3bobo60b2o3bobo65b2o3bobo48b
2o3bobo34b2o3bobo41b2o3bobo$72bo46bo47bo4bobo41bo4bobo60bo4bobo65bo4b
obo48bo4bobo34bo4bobo41bo4bobo$72bobo44bobo45bobo3bo42bobo3bo61bobo3b
o66bobo3bo49bobo3bo35bobo3bo42bobo3bo$73b2o45b2o44b2ob4o9b3o30b2ob4o61b
2ob4o66b2ob4o49b2ob4o35b2ob4o42b2ob4o$168bo13bo34bo67bo72bo55bo41bo48b
o$168bobo12bo33bobo65bobo70bobo53bobo39bobo46bobo$169b2o47b2o66b2o71b
2o54b2o40b2o47b2o$53b2o$54b2o$53bo203bo$257b2o258bo$256bobo257b2o$516b
obo$511b3o$513bo$512bo3$512b3o$499b3o10bo$501bo11bo$500bo$320bo$319b2o
$319bobo$325bo$324b2o$324bobo!

Components mostly found on Catagolue.

EDIT: I should have waited a little longer before posting!
xs37_660uhe8gz09fgc89a52zx1252 in 73g:

Code: Select all

x = 693, y = 72, rule = B3/S23
493bo$493bobo$483bo9b2o$482bo$482b3o$492bo$432bo53bo5bobo$430bobo52bo
6b2o$431b2o52b3o5$433bo$434b2o$433b2o63bo$256bobo237b2o$256b2o233bobo
3b2o$257bo226bo6b2o$482b2o8bo$265bo217b2o$263b2o282bobo$237bo26b2o281b
2o$238b2o308bo$231bo5b2o240bo$173bo58b2o229bo13b2o$124bo49bo56b2o230b
obo4bo7b2o$125bo7bo38b3o116bo12bobo36bo107bo11b2o4bo$92bo30b3o8bo11bo
41bo40bo16bo44bobo3bo6b2o38b2o106bo16b3o$92bobo37b3o9b2o42bobo39bo13b
obo44b2o3bo8bo37b2o105b3o88bo86bo$49bo38bo3b2o43bobo5b2o41b2o38b3o14b
2o41bo7b3o184bo55b2o41bo44bo$48bo40bo47b2o37bobo73bo36bo62bo41bo70bo15b
2o57b2o38bobo44b3o$48b3o36b3o48bo38b2o2bobo68bobo32b3o61bo40bobo69bo17b
2o97b2o$8bobo166bo3b2o69b2o48bo48b3o39b2o3bo65b3o156bobo$o7b2o172bo118b
2o94bo71bo69b2o83b2o$b2o6bo36b2o4bo31b2o5bo209bobo93b3o68b2o69bobo41b
2o39bo$2o44bobo2bobo31bo4bobo84bo115b2o173bobo61b2o5bo44b2o3b2o$48bo3b
o32bobo3bo83bobo115bobo56b2o4bo105bo9bo58bo49bo6bo$11bo31bo4b4o32b2ob
4o47bo37b2o8bo108bo6bo48b2o4b2o36bo67bobo7b2o57bo55bo41bo$9b2o32b2o41b
o45b2o3bobo46b3o57bob2o43bob2o4b2o42b2o6bo3bobo34bobo65bobo8bobo56b2o
54b2o39bobo48bo$b3o6b2o30bobo3b2o36bobo44bo4bobo48bo56b2o2bo42b2o2bo3b
obo40bobo46bobo65bobo70bo7b2o46bo32b2o5bobo43b2obobo$3bo44b2o37b2o44b
obo3bo43b2o3bobo53b2o3bobo39b2o3bobo45bo48bo67bo15b3o54bo6b2o47bo33b2o
6bo43b2obobo$2bo129b2ob4o45bo4bobo53bo4bobo39bo4bobo42bob2o45bob2o64b
ob2o14bo54bob2o7bo44bob2o31bo6bob2o45bob2o$8b2o124bo49bobo3bo54bobo3b
o40bobo3bo43b2o2bo44b2o2bo63b2o2bo14bo53b2o2bo51b2o2bo37b2o2bo44b2o2b
o$8bobo123bobo46b2ob4o54b2ob4o40b2ob4o42b2o3bobo41b2o3bobo60b2o3bobo65b
2o3bobo48b2o3bobo34b2o3bobo41b2o3bobo$8bo126b2o48bo60bo46bo47bo4bobo41b
o4bobo60bo4bobo65bo4bobo48bo4bobo34bo4bobo41bo4bobo$185bobo58bobo44bo
bo45bobo3bo42bobo3bo61bobo3bo66bobo3bo49bobo3bo35bobo3bo42bobo3bo$186b
2o59b2o45b2o44b2ob4o9b3o30b2ob4o61b2ob4o66b2ob4o49b2ob4o35b2ob4o42b2o
b4o$342bo13bo34bo67bo72bo55bo41bo48bo$342bobo12bo33bobo65bobo70bobo53b
obo39bobo46bobo$343b2o47b2o66b2o71b2o54b2o40b2o47b2o$227b2o$228b2o$227b
o203bo$431b2o258bo$430bobo257b2o$690bobo$685b3o$687bo$686bo3$686b3o$673b
3o10bo$675bo11bo$674bo$494bo$493b2o$493bobo$499bo$498b2o$498bobo!

[Chris857]

xs32_4s0gbai3ggz11o9aq1074 in 17G, down from 20G.

Code: Select all

x = 332, y = 60, rule = B3/S23
4bobo$5b2o$5bo38bo$o41b2o$b2o34bo5b2o$2o35bobo$37b2o94bobo$134b2o$134b
o3$136bo$137bo$135b3o12$160bo2bo146bo2bo$160b4o146b4o$306b2o$20b2o138b
2o145bo2b2o$19bo2bob2o133bo2bob2o141bobo2bob2o$19bo2bobo134bo2bobo141b
2obo2bobo$20b2o2bo135b2o2bo145b2o2bo$24b2o138b2o148b2o12$131b2o$132b2o
$131bo2$135bo$135b2o$134bobo3$293b2o$292bobo35b2o$287b2o5bo34b2o$288b
2o41bo$287bo38bo$325b2o$325bobo!

2026-07-18:

xs37_660uhe8gz09fgc89a52zx1252 in 73g

72G

Code: Select all

x = 79, y = 72, rule = B3/S23
6bo$4bobo$5b2o2$2bo$3b2o$2b2o14$40b2o$39bobo$39bo$37b2ob4o$38bobo3bo$
38bo4bobo$37b2o3bobo$39b2o2bo$39bob2o33$70bo$8b2o59b2o$9b2o58bobo$8bo
67b2o$b2o73bobo$obo73bo$2bo2$68b3o$68bo$69bo!

[KtT]

xs30_0cc0v9z25t1ei96zx11 in 9G from soup, down from 132G:

Code: Select all

x = 118, y = 54, rule = B3/S23
obo$b2o$bo9$36bo$35bo$35b3o$116bo$115bo$115b3o16$85bo$81b2obobo$81b2o
bob3o$11b3o70bo4bo$10b3o66b5ob3obo$79bo2bo2bo2bo$84bo2bo$13bo71b2o$12b
obo$13bo$84b2o$83bo2bo$47b2o35b2o$46b2o$48bo5$40bo$39b2o$39bobo!

Old synthesis for safekeeping:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs30_0cc0v9z25t1ei96zx11 costs 132 gliders (true).
#CLL state-numbering golly
x = 1392, y = 55, rule = B3/S23
802bo$803b2o32bobo$802b2o33b2o$838bo4$828bobo9bo$828b2o10bobo$829b
o10b2o2$1089bo246bobo$820bo269b2o244b2o$450bo288bobo76bobo3bobo
262b2o246bo$350bo10bo86bobo57bo231b2o77b2o3b2o273bobo187bo$295bo
55bo9bobo35bobo47b2o58b2o150bo78bo73bo10bo274b2o3bo182bo33bobo$
296b2o51b3o9b2o37b2o61bo44b2o150bo108bo45bo63bo8bobo209bo3bo178bo
4b3o32b2o$201bobo91b2o103bo62bobo194b3o84bo19b2o44b3o7bo55bobo6b2o
37bobo157bo16b3o86bo87bobo39bo11bobo$55bo145b2o141bo67bobo48b2o
190bo92bo19b2o54bo50bo3b2o8bo38b2o112bobo43bo105bo87b2o51b2o$46bo
6bobo103bo42bo139bobo7bo59b2o239bobo90b3o73b3o51bo51bo113b2o42b3o
103b3o141bo$47b2o5b2o41bo61bobo137bobo5bo35b2o7bobo58bo240b2o218b
3o57bo101bo6bo101bo88bo54b2o31bo$46b2o47bobo61b2o35bobo5bo4bo85bo
3b2o6bobo42b2o10bo152bobo140b2o272bobo98bo108bo51bo36bo54b2o33bo$
96b2o99b2o4bo4bo87bo3bo6b2o53b2o153b2o93bo46b2o273b2o99b3o47bo58b
3o48bo37b3o54bo30b3o$105bo91bo5b3o2b3o83b3o66b2o104bo48bo91bobo48b
o100bobo321bo108b3o$105bobo50b2o308bo142b2o3bobo144b2o4bo271bo42b
3o55bo45b2o197bo$105b2o50b2o200bo108b3o145b2o81b2o54b2o6bo3b2o47b
2o222bo102bo45b2o194b2o$45bo11bo101bo88b2o52b2o48b2o4b2o41b2o55b2o
48bo108bo38b2o41bo55bo12b2o47bo117bobo102b3o98b3o44bo45b3o3bo3bo
40bo41bo8bo40bo8b2o$5bo39b2o9b2o38bo14bo38bo4bo39bo4b2o4b3o35bo4bo
48bo4bo6b2o39bo2bo3bobo37bo2bo10bo42bo2bobo43b2obobo45b2ob2o46b2ob
2o41b2obobo38b2obo42b2o8b2obo56b2obo60b2obobo42b2obo7b2o35b2obo2bo
42b2obo2bo76b2obo41bob2obo39bob2obo36bo2bobobobo33bo2bobobo41bo3bo
2bobobo36bobobo$5bobo36bobo4b2o3bobo36bobo12bo38bobo2bobo37bobo2bo
bo4bo36bobo2bo13bo34bobo2bo6b2o39bobobo42bobobo9bo42bobobo2bo4b2o
35bobobo2bo9b2o32bobobo46bobobobo39bobobo39bobob2o40bobo7bobob2o
54bobob2o58bobob2obo40bobob3o6bo34bobob4o41bobob4o75bobob3o39b2obo
b3o37b2obob3o33bo4b2obob3o31b4obob3o37b3o3b4obob3o32b3obob3o$bo3b
2o4bobo36bo2bo40bo2bo12b3o35bo2bo2b2o37bo2bo2b2o6bo34bo2bo2b2o11bo
34bo2bo2b2o7bo37bo2bo2b2o39bo2bo2b2o7b3o39bo2bo2b2o5bobo33bo2bo2b
2o9b2o32bo2bo2b3o42bo2bo2bo39bo2bo2bo37bo2bo2bo42bo6bo2bo3bo52bo2b
o3bo56bo2bo4bo39bo2bo4bo39bo2bo45bo2bo79bo2bo4bo36b2o3bo4bo39bo4bo
40bo4bo35bo4bo47bo4bo30bo4bo4bo$2bo8b2o36bob2obo38bob2ob2o15b2o30b
ob2ob2o38bob2ob2o42bob2ob2o13b3o31bob2ob2o2bo43bob2ob2o2bo37bob2ob
2o2bo47bob2ob2o7bo34bob2ob2o13bo30bob2ob2o2bo3bo37bob2ob2o39bob2ob
2o37bob2ob2o49bob2ob2obo51bob2ob2obo55bob2ob2obo39bob2ob2obo39bob
2ob2ob2o39bob2ob2ob2o73bob2ob4o38bob2ob4o37b3ob4o38b3ob4o33b3ob4o
45b3ob4o31bob3ob4o$3o9bo36bo2bobo38bo2bo2bo14b2o31bo2bo2bo38bo2bo
2bo42bo2bo2bo47bo2bo2bobo44bo2bo2bobo38bo2bo2bobo48bo2bo2bo42bo2bo
2bo44bo2bo2bo5b2o4b2o31bo2bo2bobo37bo2bo2bobo35bo2bo2bobo47bo2bo2b
2o52bo2bo2b2o56bo2bo2b2o40bo2bo2b2o7b2o31bo2bo2b2obo3bo35bo2bo2bob
2o73bo2bo2bo40bo2bo2bo38bo2bo2bo39bo2bo2bo34bo2bo2bo46bo2bo2bo34bo
2bo2bo$7b2o41bo2bo6b3o31bo2bo18bo31bo2bo41bo2bo45bo2bo50bo2bo2bo
46bo2bo2bo40bo2bo2bo6b2o42bo2bo45bo2bo47bo2bo7bobo3bobo31bo2bo2b2o
38bo2bo2b2o36bo2bo2b2o4bo43bo2bo56bo2bo6b2o52bo2bo44bo2bo11b2o31bo
2bo8bobo34bo2bo79bo2bo43bo2bo41bo2bo42bo2bo37bo2bo42b2o5bo2bo37bo
2bo5bo$7bobo41b2o7bo34b2o52b2o43b2o47b2o12b2o38b2o51b2o45b2o10bobo
42b2o47b2o49b2o14bo34b2o44b2o42b2o7b2o45b2o58b2o8b2o52b2o46b2o11bo
34b2o9b2o36b2o81b2o45b2o43b2o44b2o39b2o44b2o5b2o39b2o6b2o3bo$7bo
53bo44b2o149bobo149bo295b2o113bo215b3o288bo55bobo3bobo$57b2o46b2o
150bo727b3o48bo352b2o$2b3o51bobo48bo406b2o411b2o46b3o7bo51bo$2bo5b
2o48bo193b3o258b2o42b2o367bobo48bo8bo$3bo3b2o87b3o153bo158bo97b2o
4bo40bobo147b3o219bo47bo54b3o54bo$9bo51bo36bo149b2o3bo156b2o4bo91b
obo47bo147bo324bo56b2o$60b2o35bo149bobo160bobo2b2o93bo196bo319b2o
3bo54bobo$60bobo186bo9b2o154bobo564bo43bobo$258b2o721b2o45bo$260bo
244b2o10b2o462bobo351b3o$504bobo9b2o817bo$506bo11bo817bo3$836b3o$
801b2o33bo$800bobo34bo$802bo28b2o$830b2o219b3o$832bo218bo$1052bo!

[Chris857]

xs32_8k8g08oa52zxj9c8278k8zw121 in 28G from soup

Code: Select all

x = 392, y = 132, rule = B3/S23
384bo$384bobo$384b2o3$261bo$262bo$260b3o22$338bobo$144bobo39bobo149b2o
$145b2o39b2o151bo$145bo41bo8$34bo$34bobo$34b2o$8bo121bo$9b2o120b2o68b
o$8b2o120b2o67b2o$35bobo162b2o$35b2o$36bo9bobo$46b2o$47bo276b2ob2o$289b
o34b2ob2o$290b2o$161b2o126b2o30b2o$6bo153bo2bo156bo2bo$bo5b2o152b2o158b
2o$2bo3b2o$3o2$163b2o158b2o$163b2o12bo145b2o12bo$176bobo157bobo$176bo
bo157bobo$171b2o4bo132b2o19b2o4bo$171b2o137b2o19b2o7b2o$340b2o$310b2o
$159b2o149b2o7b2o19b2o$154bo4b2o153bo4b2o19b2o$153bobo157bobo$153bobo
157bobo$154bo12b2o145bo12b2o$167b2o158b2o2$49b3o$44b2o3bo$43b2o5bo118b
2o158b2o$45bo122bo2bo156bo2bo$169b2o158b2o30b2o$360b2o$323b2ob2o34bo$
4bo318b2ob2o$4b2o$3bobo9bo$15b2o$14bobo113b2o$42b2o87b2o67b2o$41b2o87b
o68b2o$43bo157bo$16b2o$15bobo$17bo8$144bo41bo$144b2o39b2o125bo$143bob
o39bobo124b2o$311bobo22$389b3o$389bo$390bo3$266b2o$265bobo$267bo!

[WhiteHawk]

Just a little question: can we find a synthesis for this 36-cell still life?

Code: Select all

...

Here is some progress (xs37_660uhe8gz09fgc89a52zx1252 from xs27_kc32ar4koz125a43, also unsynthesized):

Code: Select all

Components mostly found on Catagolue.

EDIT: I should have waited a little longer before posting!
xs37_660uhe8gz09fgc89a52zx1252 in 73g:

Code: Select all

Is the potential for conversion of the loaf end to a hook?

Code: Select all

x = 27, y = 7, rule = LifeHistory
6.2A16.2A$3.2A2.A10.3B2A2.A$2.E2.2A11.2BE2.2A$.E.E.A12.BD.E.A$E2.E.A12.
DBCE.A$.2E2.A.2A9.B2DB.A.2A$5.2A.A9.4B.2A.A!

[AbhpzTa]

Just a little question: can we find a synthesis for this 36-cell still life?

Code: Select all

...

Here is some progress (xs37_660uhe8gz09fgc89a52zx1252 from xs27_kc32ar4koz125a43, also unsynthesized):

Code: Select all

Components mostly found on Catagolue.

EDIT: I should have waited a little longer before posting!
xs37_660uhe8gz09fgc89a52zx1252 in 73g:

Code: Select all

Is the potential for conversion of the loaf end to a hook?

Code: Select all

x = 27, y = 7, rule = LifeHistory
6.2A16.2A$3.2A2.A10.3B2A2.A$2.E2.2A11.2BE2.2A$.E.E.A12.BD.E.A$E2.E.A12.
DBCE.A$.2E2.A.2A9.B2DB.A.2A$5.2A.A9.4B.2A.A!

7G loaf-to-hook (3G loaf-to-beehive + 4G beehive-to-hook):

Code: Select all

x = 79, y = 33, rule = B3/S23
75bo$74bo$74b3o$62bo$60bobo$61b2o$58bo$56bobo$57b2o2$2bo$3bo$b3o$16b2o
58b2o$13b2o2bo55b2o2bo$12bo2b2o55bo2b2o$11bobobo55bobobo$10bo2bobo55bo
bobo$11b2o2bob2o53bo2bob2o$15b2obo56b2obo6$b2o$obo13b2o$2bo13bobo$16bo
2$58b2o$57bobo$59bo!

[pifricted]

xs60_256o804s0s408o652zxol55o0o55loz253x11011x352 in 18G:

Code: Select all

x = 285, y = 45, rule = B3/S23
247bo17bo$248bo15bo$246b3o15b3o4$252bo7bo$251bobo5bobo$251bobo5bobo$164b
o87bo7bo$162bobo$163b2o$283bo$175bobo104bo$175b2o105b3o$3bo100bo71bo$
bobo100bobo142bo13bo$2b2o100b2o142bobo11bobo$232b3o14b2o3b2ob2o3b2o14b
3o$251b2o2bobo2b2o$230bo5bo14bo3bobo3bo14bo5bo$61bo89bo39bo38bo5bo15b
3o3b3o15bo5bo$11bo48bobo5b3o25bo53bobo5b3o21b3o5bobo37bo5bo39bo5bo$12b
2o47b2o31b2o55b2o37b2o60b3o3b3o$11b2o82b2o135b3o16bo3bobo3bo16b3o$251b
2o2bobo2b2o$249b2o3b2ob2o3b2o$12b2o80b2o152bobo11bobo$13b2o78b2o133b3o
18bo13bo$12bo82bo80bo53bo$175b2o52bo$175bobo$b2o102b2o$obo102bobo55b2o
$2bo102bo56bobo$164bo87bo7bo$251bobo5bobo$251bobo5bobo$252bo7bo4$246b
3o15b3o$248bo15bo$247bo17bo!

xs60_8u1u0u1u8zraah0haarz2fgf0fgf2 in 25G:

Code: Select all

x = 343, y = 123, rule = B3/S23
109bo109bo$107bobo109bobo$108b2o109b2o36$180bobo115bo19bo$180b2o114bo
bo19bobo$181bo115b2o19b2o2$159bo$19bo138bo116bo65bo$19bobo136b3o115bo
63bo$19b2o253b3o25bo11bo25b3o$302bo11bo$302bo11bo4$155bo13b2o$153bobo
13b2o112b2o47b2o$154b2o2bo120b2o2b2o47b2o2b2o$158bobo118b2o25bo3bo25b
2o$158b2o19b3o123bobobobo$179bo125bobobobo$180bo123b2obobob2o$305bobo
bobo$304bo2bobo2bo$304b3o3b3o2$304b3o3b3o$304bo2bobo2bo$305bobobobo$148b
o155b2obobob2o$149bo155bobobobo$147b3o19b2o134bobobobo$168bobo108b2o25b
o3bo25b2o$170bo2b2o104b2o2b2o47b2o2b2o$6b2o150b2o13bobo107b2o47b2o$ob
o2b2o151b2o13bo$b2o4bo$bo2$302bo11bo$302bo11bo$274b3o25bo11bo25b3o$168b
3o105bo63bo$170bo104bo65bo$169bo2$147bo149b2o19b2o$147b2o147bobo19bob
o$146bobo149bo19bo36$108b2o109b2o$107bobo109bobo$109bo109bo!

[KtT]

xs23_69ajc321e8zx123 in 20G, down from 21G:

Code: Select all

x = 167, y = 183, rule = B3/S23
16bo$14bobo$15b2o12$15bo$13bobo$14b2o51$114bo$113bo$113b3o9$86bo$86bo
9b2o$86bo9b2o6$105bo$105bo$105bo3$101bo$100bobo$100bobo$101bo6$102bo$
101bobo$101bo2bo$102b2o$78b2o17bo$79b2o16bo$78bo18bo62$164b3o$164bo$165b
o10$b2o$obo$2bo!

xs24_ck3123ckz11624611 in 14G, down from 16G:

Code: Select all

x = 226, y = 54, rule = B3/S23
40bo$31bobo7bo$32b2o5b3o83bobo$32bo92b2o$126bo2$81bo$42bobo34b2o$43b2o
35b2o$43bo3$92bo65bo$92bobo64b2o$92b2o64b2o8$182b3o$190b2obo$190bob2o
9b2o$188b2o4b2o6bo2bo$188bo5bo8b2o$179b2o8bo5bo$178bo2bo6b2o4b2o$179b
2o9b2obo$190bob2o$199b3o8$34b2o188b2o$33bobo187b2o$35bo189bo3$84bo$46b
2o35b2o$47b2o34bobo$46bo2$bo$b2o92bo$obo83b3o5b2o$86bo7bobo$87bo!

2026-08-02:
xs24_69ajc3qiczx123 in 10G from soup, down from 51G:

Code: Select all

x = 174, y = 98, rule = B3/S23
93bobo$94b2o$94bo10$68bobo$69b2o$69bo44$bo$2bo$3o17b3o3b2o120b3o3b2o$
26b2o126b2o4$20b2o126b2o$19bo2bo124bo2bo$20b2o126b2o10$146b2o$146b2o15$
171b3o$135b2o34bo$35b3o98b2o34bo$35bo99bo$36bo!

2026-08-07:
xs24_ggmkljgoz1w62ac in 8G, down from 9G:

Code: Select all

x = 127, y = 122, rule = B3/S23
o$b2o$2o23$125bo$124bo$124b3o7$119bo$117b2o$118b2o2$67bo$68bo$66b3o3$
102bo$100b2o$101b2o36$102b3o$102bo$103bo2$102bo$101b2o$101bobo32$9b2o
$8bobo$10bo!

2026-08-15:
xs36_gg0s4lb8oz1074la9e123zy011 in 28G from soup:

Code: Select all

x = 321, y = 121, rule = B3/S23
303bo$302bo$302b3o14$202bo$200bobo$201b2o3$152bo$152bobo$152b2o2$235b
o$233bobo$234b2o3$43bobo$43b2o$44bo$136bo157bo$53bo81bo157bo$51b2o82b
3o155b3o$52b2o38bo$4bobo86bo$5b2o84b3o$5bo37bobo$43b2o$44bo$261bo$260b
obo$260bobo$o8bo251bo$b2o7b2o$2o7b2o6$105bo21bo4b3o122bo4b3o$103bobo21b
o129bo$104b2o21bo129bo$123bo129bo$123bo11b3o115bo11b3o$123bo119b2o8bo
$242bo2bo$243b2o31b2o$275bo2bo$137bo129bo8b2o$123b3o11bo115b3o11bo$137b
o129bo$133bo21b2o106bo$133bo21bobo105bo$126b3o4bo21bo100b3o4bo6$50b2o
7b2o$49b2o7b2o$51bo8bo198bo$258bobo$258bobo$259bo$16bo$16b2o$15bobo37b
o$54b2o111b3o$54bobo110bo$7b2o159bo$8b2o113b3o99b3o$7bo117bo101bo$124b
o101bo$16bo$16b2o$15bobo3$285b2o$285bobo$285bo2$107b2o$106bobo$108bo3$
318b2o$318bobo$318bo14$216b3o$218bo$217bo!

2026-08-20:
xs30_69b8b9ab96zx3553 in 11G from soup, down from 36G:

Code: Select all

x = 78, y = 75, rule = B3/S23
obo$b2o$bo10$25bo$26b2o$18bo6b2o$12bobo4bo$13b2o2b3o$13bo4$14bobo45bo
10bobo$15b2o44bo11b2o$15bo45b3o10bo26$23b3o$25bo$24bo8$70bo$69b2o$69b
obo3$75b2o$75bobo$75bo6$68b2o$68bobo$68bo!

[Anivec]

These are currently the only stable catalysts that are apart of an oscillator. If one is to finish one of these, an oscillator is more than likely synthesizable.

Code: Select all

x = 115, y = 88, rule = B3/S23
8b2o16b2o3b2obo25b2o16bo27b2o2b2o$9bo16bo2bo2bob3o23b2o15bobobo2bo21b
2o3bo$4b2obo19b4obo4bo17b2o20bobob4o15b2o9bob2o$5bob2o23bob2obo16bo2b
o2b2o13b2o2b2o19bo2bo6b2o2bo$3bo3bo17b7o2bobo18bobo3b3o12bobo3bo19b2o
2bo5bo$b3obo2bo16bo8bo18bobobobo4bo11bo2bob2o20bobobo2b2o$o4b4o19b2o3b
2o16b3o2bobob2obo13b2o24bo2b2o2bo$b3o24b2o20bo3b2o2bo2b2o39b2o7bo$3bo
b2o44b3o4b2o50b2o$4bobo46bo15$10b2o20b2o27b2o12b2o8b2o17b2obob2o$2o9b
o15b2obo2bo22b2obo2bo12bo2bob2obo2bo16bobob2obo$o2bo2bobo2bob2o13bob3o
22bobob2o15b3obob4o14bo2bobo$b6ob3o2bo14bo26bobobo26b3o11b3o2bo$13bo12b
3ob3o23bobo2bo16b4obobo2bo14b2o$3b2o5b3o12bo3b2o2bo18bobobobob2o16bo3b
2obo14b2o$3b2o5bo15b2o4b2o17bob2obobo20b2o3bo15bo$28b4o19bo3bo2bo22b3o
17bo$28bo2bo18b2o3bobo23bo18b2o$56bo16$6bo25b2o27b2o19b2obo21b2ob2o$5b
obo23bobo28bo19b2ob3o16bobob2obo$5bob3obo19bo23b2o5bob2o22bo14bob2o$3b
obo4b2o18b2o2bo20b2o2b2obo2bo16b2ob3o13b3o3bob2o$b3ob4o16b2obo3b3o25b
ob2o19bobo14bo3b3o3bo$o3bo3bob2o13b2ob4o28bo17b2obo19b3o3b3o$2o2bobob
o2bo20bo26b2o18bob2o20bo2bo$5b2ob2o15b6obo21b2obo21bo2bo23b2o$25bo5bo
18b2obobob4o15b2ob2o$27bobo20bob2o2bo3bo16bo$26b2ob2o23bobo2bo15bobo$
54b2o3b2o14b2o14$12b2o17bo3b2o$12bo15bobobo3bo$13bo12b3ob2o3bo$12b2o11b
o3bo4bo$14b2o10b2o2b5obo$2b2o3b2ob4o2bo11b2o5bobo$3bo2bobobo4bobo10bo
2bo2bo2bo$3o3bobobob2obobo12b2o3b2o$o2b4obobobo2b2o$3bo3bobobo2bo$4bo
2bobobob2o$3b2o3b2obo$11bo$11b2o!

[Chris857]

These are currently the only stable catalysts that are apart of an oscillator. If one is to finish one of these, an oscillator is more than likely synthesizable.

Code: Select all

x = 115, y = 88, rule = B3/S23
8b2o16b2o3b2obo25b2o16bo27b2o2b2o$9bo16bo2bo2bob3o23b2o15bobobo2bo21b
2o3bo$4b2obo19b4obo4bo17b2o20bobob4o15b2o9bob2o$5bob2o23bob2obo16bo2b
o2b2o13b2o2b2o19bo2bo6b2o2bo$3bo3bo17b7o2bobo18bobo3b3o12bobo3bo19b2o
2bo5bo$b3obo2bo16bo8bo18bobobobo4bo11bo2bob2o20bobobo2b2o$o4b4o19b2o3b
2o16b3o2bobob2obo13b2o24bo2b2o2bo$b3o24b2o20bo3b2o2bo2b2o39b2o7bo$3bo
b2o44b3o4b2o50b2o$4bobo46bo15$10b2o20b2o27b2o12b2o8b2o17b2obob2o$2o9b
o15b2obo2bo22b2obo2bo12bo2bob2obo2bo16bobob2obo$o2bo2bobo2bob2o13bob3o
22bobob2o15b3obob4o14bo2bobo$b6ob3o2bo14bo26bobobo26b3o11b3o2bo$13bo12b
3ob3o23bobo2bo16b4obobo2bo14b2o$3b2o5b3o12bo3b2o2bo18bobobobob2o16bo3b
2obo14b2o$3b2o5bo15b2o4b2o17bob2obobo20b2o3bo15bo$28b4o19bo3bo2bo22b3o
17bo$28bo2bo18b2o3bobo23bo18b2o$56bo16$6bo25b2o27b2o19b2obo21b2ob2o$5b
obo23bobo28bo19b2ob3o16bobob2obo$5bob3obo19bo23b2o5bob2o22bo14bob2o$3b
obo4b2o18b2o2bo20b2o2b2obo2bo16b2ob3o13b3o3bob2o$b3ob4o16b2obo3b3o25b
ob2o19bobo14bo3b3o3bo$o3bo3bob2o13b2ob4o28bo17b2obo19b3o3b3o$2o2bobob
o2bo20bo26b2o18bob2o20bo2bo$5b2ob2o15b6obo21b2obo21bo2bo23b2o$25bo5bo
18b2obobob4o15b2ob2o$27bobo20bob2o2bo3bo16bo$26b2ob2o23bobo2bo15bobo$
54b2o3b2o14b2o14$12b2o17bo3b2o$12bo15bobobo3bo$13bo12b3ob2o3bo$12b2o11b
o3bo4bo$14b2o10b2o2b5obo$2b2o3b2ob4o2bo11b2o5bobo$3bo2bobobo4bobo10bo
2bo2bo2bo$3o3bobobob2obobo12b2o3b2o$o2b4obobobo2b2o$3bo3bobobo2bo$4bo
2bobobob2o$3b2o3b2obo$11bo$11b2o!

Here's two of them that already had synths, just not in isolation. Do you know which oscillators they come from? I know the top from at least a synthesized p18 and an unsynthesized p65 that's waiting on another from your list. I think I remember the second one, but not where from exactly. Edit: second one from p33 pi hassler.

Code: Select all

x = 907, y = 261, rule = B3/S23
78bo$78bobo$78b2o10$770bo$769bo$769b3o4$621bo$619b2o$620b2o113bobo$579b
o156b2o$580b2o154bo35bobo$579b2o191b2o$186bo586bo$185bo287bo$185b3o285b
obo$473b2o2$293bobo$294b2o$294bo10$739b2o$738bo2bo$739b2o6$322b3o132b
o4b3o142bo4b3o132bo4b3o126b2o$456bobo147bobo137bobo132bo$326b2o128bob
o7b2o138bobo7b2o128bobo7b2o108bo16bo2bo$326b2o129bo8b2o139bo8b2o129bo
8b2o109bo14b5o$865b3o$164bo159bo139bo137b2o10bo127b2o10bo129bo$163bob
o157bobo137bobo135bo2bo8bobo125bo2bo8bobo127bobo$164b2o158b2o138b2o136b
2o10b2o126b2o10b2o128b2o3$39bo2bob2obo111bo2bob2obo151bo2bob2obo131bo
2bob2obo141bo2bob2obo131bo2bob2obo121bo2bob2obo$39b4obob2o111b4obob2o
151b4obob2o131b4obob2o141b4obob2o131b4obob2o102b2o17b4obob2o$43bo119b
o159bo139bo149bo139bo107b2o20bo$41bo119bo159bo139bo149bo139bo108bo6b2o
12bo$41b2o118b2o158b2o138b2o148b2o138b2o115b2o11b2o$867bo3$183b3o$183b
o$184bo112bo$297b2o$b3o292bobo$3bo192b2o$2bo192b2o$197bo2$3o$2bo$bo2$
422bo$422b2o$421bobo3$421b2o$420bobo$422bo2$701b2o$700bobo$702bo109$586b
o$587bo$585b3o6$738bo126bo$736bobo124bobo$737b2o125b2o38bo$904bobo$771b
o7bo124b2o$771bobo5bobo$771b2o6b2o2$906bo$616bo287b2o$616bobo286b2o$616b
2o12$882bo$748b2o128b2obobo$748b2o128b2ob2o2$608b2o138b2o128b2ob2o$609b
o6b2o131bo129bobobo$604b2obo7b2o127b2obo126b2obo4bo$605bob2o8bo127bob
2o126bob2o$605bo2bo136bo2bo126bo2bo$602b2ob2o135b2ob2o125b2ob2o$603bo
139bo129bo$601bobo137bobo127bobo$601b2o138b2o128b2o8$776b2o$776bobo$776b
o$771b2o$770b2o$772bo2$737b2o$738b2o$737bo!

I'm pretty sure you can get from xs23_c88mhf033zbd to xs25_c88mhf03213zbd (edit: yes), but the first one doesn't have a synth on catagolue even though it's 23-bits, so that must be one of the "trivial" ones that was on a separate database. Can someone point it out?

Code: Select all

x = 48, y = 38, rule = B3/S23
2bo$obo$b2o2$5bo$6b2o39bo$5b2o38b2o$46b2o$41bo$41bobo$41b2o19$27b2o$27b
2o2$27b4o$27bo3bo$28b2obo$30bo$30bobob2o$29b2ob2obo!

And for context, I know that two of them are used in this p162 pi shuttle.

Here's the easier of the two in the p162, but that last step doesn't have enough clearance to fit against the harder one assuming this comes second.

Code: Select all

x = 311, y = 62, rule = B3/S23
265bo$263bobo$264b2o43bo$308bo$260bo47b3o$258bobo$259b2o3$128bo$126bo
bo$127b2o4$6bo$4bobo$5b2o11$35b2o118b2o138b2o$36bo113bo5bo139bo$33bo2b
ob2o109bobobo2bob2o128bo2bobo2bob2o$33b3o2bo111b2ob3o2bo129b4ob3o2bo$
38bo119bo139bo$35b3o117b3o130b2o5b3o$35bo119bo132b2o5bo12$9b2o$8bobo$
10bo$124b2o$123bobo$9bo115bo$b2o6b2o117b2o122b2o$obo5bobo118b2o122b2o
4b3o$2bo125bo123bo8bo$260bo4$257bo$257b2o$256bobo!

2026-08-30:
Another one. Lefthand clump of steps from catagolue. Also lowers cost of xs28_xdb8o6piczcc0f9 by 1G, to 37G. Edit: May13 basically already found this on November 24th, 2024. Missed it somehow.

Code: Select all

x = 1395, y = 72, rule = B3/S23
1215bobo$1123bobo90b2o$1123b2o12bo78bo55bo$1124bo10b2o133b2o$1136b2o133b
2o$1082bo$1080bobo$1081b2o270bo$1351bobo$698bo653b2o$485bo213b2o691bo
$485bobo10bo199b2o692bobo$485b2o10bo250bo643b2o$497b3o247bo604bo$455b
o239bo51b3o151bo213bo152bo81bobo$456b2o238bo205bo211bo152bo83b2o$455b
2o237b3o203b3o211b3o150b3o$566bo$564bobo$565b2o355bo$912bo8bo$910bobo
8b3o$911b2o3$920bo$10bo903bobo2bo$2bo6bo8bo896b2o2b3o$obo6b3o4b2o897b
o$b2o14b2o155bo60bo$173bo61bobo778bo4bobo$12bo50b2o47b2o48b2o4bo4b3o48b
2o9b2o778bo5b2o$3bo6b2o38bo13bo48bo49bo3bo57bo789b3o4bo86b2o126b2ob2o
135b2o$4b2o5b2o38bo4bob2ob3o3bo37bob2ob3o42bob2ob3o4b3o47bob2ob3o783b
2o98bobo127bob2o136bo$3b2o44b3o4b2obobo5bobo35b2obobo44b2obobo56b2obo
bo598bo186bo99bo129bo139bob2o$59bo7b2o31bo7bo49bo61bo256b2o126b2ob2o125b
2ob2o79bobo13b2ob2o75b2ob2o85b2obo96b2obo126b2obo136b2obo2bo$59b2o40b
2o5b2o48b2o60b2o5bobo246bobo127bob2o126bob2o80b2o14bob2o76bob2o86bob2o
96bob2o126bob2o136bob2o$11b3o86b2o4b2o48b2o60b2o7b2o247bo129bo129bo99b
o79bo89bo99bo129bo139bo$11bo93bobo49bo59bo2bobo5bo246b2o128b2o128b2o98b
2o78b2o88b2o98b2o128b2o138b2o$12bo93bo48bo61b2o2b2o247b2obo126b2obo126b
2obo84bo6b2o3b2obo76b2obo86b2obo13b3o80b2obo126b2obo136b2obo$111bobo30b
obo8b2o312bobob4o122bobob4o119b2obobob4o82bo5bobobobob4o69b2obobob4o79b
2obobob4o10bo78b2obobob4o119b2obobob4o129b2obobob4o$111b2o32b2o322bo2b
o3bo122bo2bo3bo119b2obo2bo3bo80b3o8b2o2bo3bo69bob2o2bo3bo79bob2o2bo3b
o11bo77bob2o2bo3bo119bob2o2bo3bo129bob2o2bo3bo$52b3o9bo42b2o3bo32bo82b
o241bobo2bo124bobo2bo124bobo2bo94bobo2bo74bobo2bo84bobo2bo94bobo2bo124b
obo2bo134bobo2bo$54bo8b2o42bobo117b2o242bo3b2o124bo3b2o124bo3b2o84bo8b
2o3b2o73b2o3b2o83b2o3b2o93b2o3b2o123b2o3b2o133b2o3b2o$53bo9bobo41bo119b
obo591b2o$820bobo$104b2o41b2o23b2o$57b2o46b2o41b2o22bobo426bo$56bobo45b
o42bo24bo408b3o16b2o$58bo96b3o8b3o37b3o4b2o4bo363bo16bobo$157bo4bo3bo
41bo3bobo3b2o362bo$60bo95bo5b2o3bo39bo6bo3bobo229b3o620b2o$59b2o100bo
bo288bo619bobo$59bobo389bo622bo$213bo$207b3o3b2o$209bo2bobo$208bo481b
2o$691b2o$690bo2$699bo$221b3o475b2o572bo$223bo474bobo571b2o$222bo1049b
obo3$702b2o$703b2o46bo$702bo47b2o466b2o$750bobo464bobo$1219bo!

I've already done a quick check (4 or 8 still lifes in queue, I don't remember) and haven't made much progress. Maybe I'll do this tomorrow with bigger queue (the search process is quite long). Right now I'm testing automatic 22-bit still life synthesis search.

The user affamatodidio made a suggestion for what the steps may look like:

EDIT
Alternative solutions:

Code: Select all

x = 163, y = 9, rule = B3/S23
27b2o22b2o$4b2o20bo2bo18b2o2bo17b2ob2o17b2ob2o17b2ob2o17b2ob2o17b2ob2o
$bobobo17bobob3o15bobob3o15bobob2obo14bobob2obo14bobob2obo14bobob2obo
14bobob2obo$ob2o18bob2o18bob2o18bob2o15bo2bob2o15bo2bob2o15bo2bob2o18b
ob2o$o3bo17bo3bob2o14bo3bob2o14bo3bob2o11b4o3bob2o11b4o3bob2o11b4o3bo
b2o12b3o3bob2o$b3o2bo16b3o3bo15b3o3bo15b3o3bo15b3o3bo15b3o3bo15b3o3bo
11bo3b3o3bo$4b3o19b3o19b3o19b3o14bobo2b3o14b2o3b3o12b4o3b3o13b3o3b3o$
3bo21bo21bo21bo17b2o3bo15bobo2bo15bo2bo2bo18bo2bo$3b2o20b2o20b2o20b2o
38bo3b2o20b2o20b2o!

2 steps back

Code: Select all

x = 202, y = 75, rule = B3/S23
199bo$199bobo$199b2o$149bobo$150b2o$150bo$197bo$145bobo48bo$146b2o48b
3o$146bo12$156bobo$157b2o$157bo$169bo15bo$167bobo14bo$158bo9b2o3bobo3b
o4b3o$159b2o13b2o3bobo$158b2o14bo4b2o2$171bo$172bo$170b3o$34b2ob2o145b
2ob2o$31bobob2obo142bobob2obo$27bo2bob2o143bo2bob2o$27b4o3bob2o139b4o
3bob2o$31b3o3bo143b3o3bo$29b2o3b3o140b4o3b3o$28bobo2bo143bo2bo2bo$29b
o3b2o148b2o2$170b3o$172bo$171bo2$174bo4b2o$174b2o3bobo$168b2o3bobo3bo
$167bobo$169bo$156b2o$155bobo$157bo5$6b2o$7b2o$2o4bo$b2o40b2o$o42bobo
$43bo2$146bo$146b2o48b3o$145bobo48bo$197bo$150bo$150b2o$149bobo$199b2o
$199bobo$199bo!

maybe useful? (saw these steps in xs22_8ehe8gzw12ehe2)

Code: Select all

x = 132, y = 42, rule = B3/S23
29bo$29bobo$29b2o3$21bo$19b2o$20b2o8$24b2ob2o95b2ob2o$21bobob2obo92bo
bob2obo$20bob2o93bo2bob2o$18b3o3bob2o89b4o3bob2o$17bo3b3o3bo93b3o3bo$
18bobo3b3o90b2obo3b3o$19b2o2bo93bob2o2bo$23b2o98b2o8$bo$b2o$obo2$105b
2o$106b2o$2b2o101bo$bobo125b3o$3bo125bo$29bo100bo$28b2o$28bobo!

a cheaper step

Code: Select all

x = 50, y = 47, rule = B3/S23
2bo$obo$b2o$11bo$12b2o$11b2o10$35b2ob2o$32bobob2obo$28bo2bob2o$28b4o3b
ob2o$32b3o3bo$30b2o3b3o$29bobo2bo$30bo3b2o2$7b3o$9bo$8bo15$44b2o$4bo38b
2o$4b2o39bo$3bobo42bo$47b2o$47bobo!

if only there was a way to do both these steps at once, but the envelopes are badly overlapping

Code: Select all

x = 57, y = 114, rule = LifeHistory
51.A$51.A.A$51.2A3$48.A.A$48.2A$49.A2$45.A$43.2A$44.2A10$21.2A$18.A.A
.A$17.A.2A$15.3A3.A.2D$14.A3.3A2.AD$15.A.A3.3A$16.2A2.A$20.2A16$44.3A
$44.A$45.A11$43.A.A$43.2A$44.A5$47.A$2.A44.A.A$A.A44.2A$.2A36.A$39.A.
A$39.2A$48.A$46.2A$47.2A2$54.A$54.A.A$54.2A15$21.2A.2D$18.A.A.AD.D$17.
A.2A$15.3A3.A$14.A3.3A2.A$15.A.A3.3A$16.2A2.A$20.2A7$46.2A$45.2A$47.A
4$49.3A$49.A$50.A!

[MathAndCode]

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!

While that particular method is not valid, it turns out that that part of the synthesis can be improved. Specifically, combining it with the previous step allows the cost for getting from xs20_gil5a8oz1wbd to xs20_gil5ak8z1wbd to be decreased from five gliders to four.

Code: Select all

x = 14, y = 19, rule = B3/S23
3b2o$4bo2bo$4bobobo$ob2o2bobo$2obobobo4bo$5bo5bo$4b2o5b3o5$9b3o$b2o6b
o$obo7bo$2bo2$12b2o$11b2o$13bo!

I also improved another part of the synthesis, reducing the total cost to 169 gliders.

Code: Select all

x = 5132, y = 57, rule = B3/S23
bo$2bo$3o6$33bo$32bo763bo$32b3o4bo754bobo$38bo756b2o$38b3o2$713bo688b
obo$711b2o323bo366b2o$712b2o91bo229bo263bo103bo$520bo285bo228b3o262b2o
711bo$520bobo91bo91bo97b3o492b2o710bobo$520b2o92b2o4bo86bo220bo1083b2o
$517bo95bobo2b2o85b3o92b3o124bo108bo979bo$515bobo101b2o181bo124b3o105b
o980bobo291bo1706bo$516b2o5bo277bo233b3o264bobo705bo5b2o290bobo1706bo
bo$22bo498b2o185bo594b2o311bobo290bo101b2o191bo104b2o685bobo1018b2o812b
o$20b2o189bo310b2o100b2o82b2o593bo306bobo3b2o289bobo100b2o193bo791b2o
1831bo$21b2o186bobo411b2o82bobo589b2o310b2o4bo290b2o293b3o791bo1628bo
203b3o$210b2o194bobo216bo400bo271bobo310bo696bo3b2o1595bo717b2o499bo$
116b2o98b2o98b2o89b2o7b2o98b2o98b2ob2o98b2o82b3o13b2o92b2o4b2o7b2o83b
2o4b2o5bo86b2o4b2o86bo5b2o4b2o79bo12b2o4b2o98b2o79bobo16b2o98b2o90b2o
6b2o90b2o6b2o98b2o98b2o92b2o4b2o92b2o4b2o88bo2bobo4b2o98b2o98b2o98b2o
98b2o98b2o98b2o98b2o98b2o98b2o98b2o98b2o98b2o98b2o98b2o98b2o86bobo9b2o
98b2o98b2o98b2o98b2o98b2o98b2o6bo91b2o5b2o3bobo85b2o98b2o98b2o98b2o98b
2o7bobo$21b2o92bobo7b2o88bobo2bo96bo2bo86bo9bo2bo96bo2bo96bobo96bo2bo
85bo10bo2bo93bo2bo2bo8bobo82bo2bo2bo6bo86bo2bo2bo88bo4bo2bo2bo93bo2bo
2bo96bo2bo81b2o16bo99bo91bo7bo91bo7bo85b3o4b2o5bo93bo5bo94bo4bo94bo4b
o87b3o4bo4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo93b
2o4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo93b2o4bo88b2o3b2o
4bo99bo99bo99bo99bo99bo99bo6bo6bo85bo11b2o86bo99bo99bo99bo99bo8b2o$21b
obo91bobob2o4bobo87bobobobo95bobobo95bobobo93bobobobo93bobobo95bobobo
84bo10bobobo94b2obobo8bo85b2obobo94b2obobo86b3o5b2obobo94b2obobo95bob
obo81bo11b2ob2obo89bo3b2ob2obo92b3ob2obo81bo10b3ob2obo87bo4bobob2obo92b
obob2obo94bob2obo94bob2obo93b2ob2obo93bo2b2obo93bo2b2obo93bo2b2obo93b
o2b2obo79bobo11bo2b2obo93bo2b2obo93bo2b2obo93bo2b2obo93bo2b2obo93bo2b
2obo93bo2b2obo93bo2b2obo93bo2b2obo93bo2b2obo93bo2b2obo93bo2b2obo96b2o
bo96b2obo96b2obo96b2obo96b2obo96b2obo6b3o3bo83b2obo12bo83b2obo6b2o88b
2obo6b2o88b2obo96b2obo96b2obo$21bo92b2obob2o4bo88b2obobobo91bob2o2bob
o82bo8bob2o2bobo92bobo2bobo92bobo2bob2o91bobo2bob2o88b2obobo2bob2o93b
o2bob2o93bo2bob2o93bo2bobo94bo2bobo87bo6bo2bobo92bobo2bobo90bobobo2bo
bo85bobo2bobobo2bobo92bobo2bobo80bo11bobo2bobo84bo7bobo2bobo90bobobo2b
obo89b2obobo2bobo86b2ob2obobo2bobo90bo3bo2bobo87bo4bobo2bobo93b2o2bob
o93b2o2bobo93b2o2bobo78b2o13b2o2bobo93b2o2bobo92b3o2bobo92b3o2bobo92b
3o2bobo92b3o2bobo87bo4b3o2bobo92b3o2bobo92b3o2bobo92b3o2bobo92b3o2bob
o92b3o2bobo86b2o6bo2bobo94bo2bobo94bo2bobo94bo2bobo94bo2bobo94bo2bobo
10b3o81bo2bobo2b2o90bo2bobo3bobo88bo2bobo3bobo88bo2bobo94bo2bobo2b2o90b
o2bobo2b2o$113bo2bo96bo2bo3bo92b2obobobo4bo76bobo8b2obobobo92bo2bobob
o92bo2bobobobo90bo2bobobobo88bob2obobobobo93bobobobo93bobobobo84bo8bo
bobobo93bobobobo85bobo5bobobobo81bo8bo2bobobobo90bo2bobobobo85b2o3bo2b
obobobo93bobobobo77b3o15bobobo90b2o3bobobo90b2o3bobobo88bob2o3bobobo84b
obobob2o3bobobo90b2o3bobobo87bo2b2o3bobobo95bobobo84bobo8bobobo95bobo
bo77bo17bobobo95bobobo95bobobo95bobobo95bobobo95bobobo87bo7bobobo95bo
bobo95bobobo95bobobo86bobo6bobobo95bobobo85b2o8bobobo95bobobo95bobobo
95bobobo95bobobo95bobobo95bobobo2bo92bobobobo93bobobobo93bobobob2o6bo
85bobobo2bo92bobobo2bo$113b2o7b2o89b2o103bo5bo78b2o2b2o8bobo93b2o2bob
o10bo82b2o2bobo93b2o2bobo97bobo97bobo97bobo88bo8bobo2bo94bobo2bo86b2o
6bobo2bo82b2o6b2o2bobo2bo93b2obo2bo93b2obo2bo93b2obo2bo92b3obo2bo92b3o
bo2bo80bo11b3obo2bo83bo8b3obo2bo85bo6b3obo2bo83b3o6b3obo2bo85b3o4b3ob
o2bo92b3obo2bo85b2o5b3obo2bo92b3obo2bo92b3obo2bo92b3obo2bo93b2obo2bo93b
2obo2bo93b2obo2bo93b2obo2bo85b3o5b2obo2bo93b2obo2bo93b2obo2bo93b2obo2b
o87b2o4b2obo2bo84bo8b2obo2bo91b4obo2bo91b4obo2bo91b4obo2bo91b4obo2bo91b
4obo2bo5bo85b4obo2bo91b4obo2b2o90b4obo2b2o90b4obo2b2o8bo81b4obo2b2obo
4b2o82b4obo2bobo89b4obo2bobo4bo$123b2o192b2o5b3o81b2o8bo99bo3b2o4b2o88b
o99bo99bo99bo99bo87b3o9bo3b2o95bobo97bobo82b2o13bobo97bobo97bobo97bob
o82b3o8bo3bobo93bo3bobo82b2o4b2o3bo3bobo84b2o7bo3bobo93bo3bobo86bo6bo
3bobo93bo3bobo93bo3bobo86bo5bo4bobo92bo4bobo92bo2bobobo92bo2bobobo82b
2o9bobobobo93bobobobo93bobobobo95bobobo95bobobo95bobobo95bobobo95bobo
bo6bobo79bo6bobobo83bobo8bo2bobo91bo2bo2bobo91bo2bo2bobo92bo2bobobo92b
o2bobobo92bo2bobobo6bobo83bo2bobobob2o4b3o82bo2bobobo92bo2bobobo92bo2b
obobo9b2o81bo2bobobo9b2o81bo2bobobobo90bo2bobobobo5bobo$122bo86b3o195b
o113bobo5b2o679b2o7b2o98b2o98b2o98b2o98b2o98b2o85bo12b2o98b2o82b2o5bo
bo6b2o84bobo11b2o98b2o86bo11b2o98b2o98b2o93b2o3b2o94bo3b2o94bobob2o82b
2o4bo5bobob2o83b2o8bo2bob2o93bo2bob2o94bobob2o81bo8bo3bobob2o95bo2b2o
96bob2o96bob2o96bob2o7b2o87bobob2o83b2o10b2ob2o90b2o3b2ob2o90b2o3b2ob
2o95b2ob2o96bob2o95bo2b2o5b2o88bo2bobo5bo88bo2bo96bo2bo97bobo4b2o3bob
o85bobo97bobo97bo2bo6b2o$211bo6b3o302bo685b2o502bo91bo204bo599bo100bo
2b2o100bo85bobo3b2o6bo97bobo93bo3bobo99bo86bo5bobo3b2o95bo3bobo99bo99b
o99bo10bo88bo91b3o406bo101bo2bo96bobo6bo90b2o98b2o96b2o4bobo91b2o98bo
bo3bo92b2o$210bo7bo911bo80bo502b2o95b2o597b2o199b2o96bobo192bo3bobo104b
o94b2o3bo185b3o6b2o98bobo4b2o97bobo97bobo100bobo2b3o185bo405b2o103b2o
97bo304bo97b2o93bo4bobo98b2o$219bo467b2o344b2o95bobo269bo310b2o96bobo
597b2o197b2o98b2o397bobo194b2o103b2o103b2o98b2o102b2o2bo186bo614b2o398b
2o97b2o98b2o$322b3o361bobo343b2o96b2o270b2o407bo392b3o203bo306b2o586b
obo417bo91bo97b2o306bo102bo4bo193b2o398bo189b2o4b2o4bo$314b2o6bo365bo
327b3o15bo366bobo103b2o697bo308bo201bobo398bo90bo97bo11b2o93b2o107bob
o290b2o97bobo199b2o99bo4bobo94b2o3b2o3b2o92bo102bo186b2o8bo297b2o90bo
bo4bobo$313bobo7bo378b3o313bo487bo2bo204b2o489bo309b2o3b2o89bo97b2o6b
o394b2o3b2o91b2o4b2o100b2o94bobo106b2o95b2o95b2o97bobo96bo200b2o100b2o
3b2o96b2o2bobo2bobo91b2o2b3o90b2o192b2o6b2o207b3o86b2o93bo4bo$315bo388b
o99b2o211bo7b2o480b2o204bobo798bobo2b2o90b2o97b2o399b2o4bobo89b2o4b2o
94b3o6bo93bo109bo94bobo96b2o398bo98bobo100bo102bobo2bo93b2o190bo8bobo
189bo7b2o7bo90bo$703bo13b2o84bobo219bobo82b3o3bo598bo805bo88bobo96bo100b
o302bo103bo95bo203b2o101bo96bo494b2o215bo91bo196b3o194b2o6bobo7bo$325b
2o390bobo85bo219bo86bo3b2o1387b2o302bobo500bo3b2o198bobo694b2o505bo193b
obo6bo$324b2o391bo316b3o74bo3bobo588bo797bobo302bobo397b2o104bobo200b
o693bo506bo$326bo494b2o211bo368b2o301b2o798bo303bo399b2o105bo1603bo$820b
2o213bo76bo11b2o171b2o103bobo300bobo1501bo401b2o1308b2o$822bo289b2o9b
obo170bobo105bo2207b2o1296b2o8bobo$1111bobo11bo172bo2312bo1297bobo$3606b
o1304bo$3606b2o6b3o$1295b2o2308bobo6bo$1294bobo2318bo19b3o$1296bo2338b
o$3636bo3b3o$3640bo$3641bo!

By the way, as a result of a mix-up, I ended up also finding these (where the boat has the wrong orientation, but it's still more efficient than making a block then turning it into a boat):

Code: Select all

x = 125, y = 1138, rule = B3/S23
4bo$5b2o$4b2o6$8bo12bo$6bobo10b2o$7b2o11b2o6$21b2o$18bo2bo$17bobobo$16b
obo2bobo$15bo2bobobobo$15b2o2bobo2bo$21bobo$21b2o7$5b2o$4bobo$6bo3$18b
3o$18bo$19bo64$4bobo$5b2o$5bo5$8bo12bo$6bobo10b2o$7b2o11b2o6$21b2o$18b
o2bo$17bobobo$16bobo2bobo$15bo2bobobobo$15b2o2bobo2bo$21bobo$21b2o7$5b
2o$4bobo$6bo3$18b3o$18bo$19bo64$2bobo$3b2o$3bo5$8bo12bo$6bobo10b2o$7b
2o11b2o6$21b2o$18bo2bo$17bobobo$16bobo2bobo$15bo2bobobobo$15b2o2bobo2b
o$21bobo$21b2o7$5b2o$4bobo$6bo3$18b3o$18bo$19bo63$19bo$17b2o$18b2o6$8b
o12bo$6bobo10b2o$7b2o11b2o6$21b2o$18bo2bo$17bobobo$16bobo2bobo$15bo2b
obobobo$15b2o2bobo2bo$21bobo$21b2o7$5b2o$4bobo$6bo3$18b3o$18bo$19bo64$
16bobo$16b2o$17bo5$8bo12bo$6bobo10b2o$7b2o11b2o6$21b2o$18bo2bo$17bobo
bo$16bobo2bobo$15bo2bobobobo$15b2o2bobo2bo$21bobo$21b2o7$5b2o$4bobo$6b
o3$18b3o$18bo$19bo64$16bobo$16b2o$17bo5$8bo12bo$6bobo10b2o$7b2o11b2o6$
21b2o$18bo2bo$17bobobo$16bobo2bobo$15bo2bobobobo$15b2o2bobo2bo$21bobo
$21b2o7$5b2o$4bobo$6bo3$18b3o$18bo$19bo63$18bo$17bo$17b3o6$8bo12bo$6b
obo10b2o$7b2o11b2o6$21b2o$18bo2bo$17bobobo$16bobo2bobo$15bo2bobobobo$
15b2o2bobo2bo$21bobo$21b2o7$5b2o$4bobo$6bo3$18b3o$18bo$19bo64$21bo$19b
2o$20b2o5$8bo12bo$6bobo10b2o$7b2o11b2o6$21b2o$18bo2bo$17bobobo$16bobo
2bobo$15bo2bobobobo$15b2o2bobo2bo$21bobo$21b2o7$5b2o$4bobo$6bo3$18b3o
$18bo$19bo63$19bo$19bobo$19b2o3$6bo$4bobo14bobo$5b2o14b2o$22bo8$21b2o
$18bo2bo$17bobobo$16bobo2bobo$15bo2bobobobo$15b2o2bobo2bo$21bobo$21b2o
7$5b2o$4bobo$6bo3$18b3o$18bo$19bo68$6bobo$7b2o$7bo$2bo$obo$b2o6$21b2o
$18bo2bo$17bobobo$16bobo2bobo$15bo2bobobobo$15b2o2bobo2bo$21bobo$b2o18b
2o$2b2o$bo5$5b2o$4bobo$6bo3$18b3o$18bo$19bo71$6bobo$7b2o$7bo3$4bo$5bo
$3b3o$21b2o$18bo2bo$17bobobo$16bobo2bobo$15bo2bobobobo$15b2o2bobo2bo$
5b2o14bobo$6b2o13b2o$5bo6$5b2o$4bobo$6bo3$18b3o$18bo$19bo69$22bo$8bo12b
o$6bobo12b3o$7b2o2$17bo$15b2o$16b2o3$21b2o98b2o$18bo2bo93bo5bo$17bobo
bo92bobob2obo$16bobo2bobo91b2obo2bobo$15bo2bobobobo93bobobobo$15b2o2b
obo2bo93b2obo2bo$21bobo97bobo$21b2o98b2o4$112b2o$112b2o2$5b2o$4bobo$6b
o113b2o$119b2o$121bo$18b3o$18bo$19bo!

[Anivec]

And for context, I know that two of them are used in this p162 pi shuttle.

Here's the easier of the two in the p162, but that last step doesn't have enough clearance to fit against the harder one assuming this comes second.

Code: Select all

x = 311, y = 62, rule = B3/S23
265bo$263bobo$264b2o43bo$308bo$260bo47b3o$258bobo$259b2o3$128bo$126bo
bo$127b2o4$6bo$4bobo$5b2o11$35b2o118b2o138b2o$36bo113bo5bo139bo$33bo2b
ob2o109bobobo2bob2o128bo2bobo2bob2o$33b3o2bo111b2ob3o2bo129b4ob3o2bo$
38bo119bo139bo$35b3o117b3o130b2o5b3o$35bo119bo132b2o5bo12$9b2o$8bobo$
10bo$124b2o$123bobo$9bo115bo$b2o6b2o117b2o122b2o$obo5bobo118b2o122b2o
4b3o$2bo125bo123bo8bo$260bo4$257bo$257b2o$256bobo!

An attempt at the "harder one" (xs34_mk1f8bp6o8a6z1011343):

Code: Select all

x = 654, y = 36, rule = B3/S23
79bobo$79b2o297bo$22bo57bo295bobo$22bobo45bo218bo87b2o$22b2o44bobo218b
obo$59bo9b2o3bo214b2o44bo44bobo14bobo$18bo41b2o11bo260bo46b2o14b2o$16b
2o41b2o12b3o210bo47b3o44bo16bo$17b2o265b2o45bo106bo$285b2o42bobo41bo65b
o45bobo47bo5bo$330b2o42b2o13b2o46b3o46b2o48bo3bo$bo110bobo258b2o14b2o
95bo47b3o3b3o$2bo110b2o106bo$3o69bo40bo108b2o352bo48bo$71bobo48b2ob2o
32b2ob2o57b2o6b2ob2o53b2ob2o34b2o2b2ob2o49b2o2b2ob2o8b2o45b2ob2o45b2o
b2o35b2o6b2ob2o26bo18bob2ob2o23bo20b2ob2o$70bobo2bo47bobo2bo30b2obo2b
o63b2obo2bo49bo2bobo2bo33bo3bobo2bo48bo3bobo2bo6bobo45bobo2bo44bobo2b
o32bobo7bobo2bo25bo20bobo2bo22bo14b2o2bobobo2bo$3b2o64bo2bob2o40b3o3b
o2bob2o33bob2o66bob2o49b2o3bob2o33bobo3bob2o48bobo3bob2o6bo43bobo3bob
2o42bo3bob2o34bo5bo3bob2o16b11o14bo2bo3bob2o13b11o13bo3bo3bob2o$4b2o63b
4obo43bo3b4obo31b4obo64b4o54b4o37bob4o52bob4o53b2ob4o42bobob4o42bob4o
28bo17bob4o25bo15b3ob4o$3bo16b2o33b2o17bo42bo9bo31bo4bo52b2o10bo4b2o51b
o4b2o36bo4b2o51bo4b2o53bo4b2o39b2o2bo4b2o39bobo4b2o24bo18bobo4b2o21bo
18bobo4b2o$20bobo33b2o13b3o50b3o34b3o52bobo4bo7b3obo53b3obo36bob3obo51b
ob3obo39bobo11bob3obo43bob3obo38b2obob3obo23bo17bobobob3obo20bo21bob3o
bo$20bo34bo15bo52bo35b2o20bo35bo5b2o4b2o41b3o12b2o41b2o38bo17b2o44b2o
12b2o48b2o46b2o45b2o3b2o46bobo$3o178bo41b2o50bo95b2o3b2o57bo54bo157bo
$2bo114bo63b3o90bo95bobo4b2o112b2o$bo115b2o257bo66bo46b2o$116bobo3b2o
313b2o3b2o$121b2o99b3o211bobo3bobo$123bo100bo52b3o158bo52b2o$223bo55b
o210bobo$278bo213bo$287bo$162bobo121b2o200b2o$163b2o121bobo198bobo$163b
o3bobo319bo$167b2o112bo$168bo112b2o$280bobo!

Alternative route:

Code: Select all

x = 609, y = 41, rule = B3/S23
454bo$452b2o$453b2o3$79bobo$79b2o297bo$22bo57bo295bobo71bo$22bobo45bo
218bo87b2o70bo$22b2o44bobo218bobo157b3o$59bo9b2o3bo214b2o44bo44bobo14b
obo$18bo41b2o11bo260bo46b2o14b2o$16b2o41b2o12b3o210bo47b3o44bo16bo$17b
2o265b2o45bo164bo$285b2o42bobo41bo58bobo59b2o$330b2o42b2o13b2o42b2o60b
2o$bo110bobo258b2o14b2o42bo3bobo50b2o$2bo110b2o106bo215b2o50bobo$3o69b
o40bo108b2o214bo52bo$71bobo48b2ob2o32b2ob2o57b2o6b2ob2o53b2ob2o34b2o2b
2ob2o49b2o2b2ob2o8b2o46b2ob2o40bo3b2ob2o48b2ob2o46b2ob2o$70bobo2bo47b
obo2bo30b2obo2bo63b2obo2bo49bo2bobo2bo33bo3bobo2bo48bo3bobo2bo6bobo46b
obo2bo37bobo3bobo2bo23bo21bobobo2bo21bo17b2o2bobobo2bo$3b2o64bo2bob2o
40b3o3bo2bob2o33bob2o66bob2o49b2o3bob2o33bobo3bob2o48bobo3bob2o6bo44b
obo3bob2o38bo2bo3bob2o24bo20bo3bob2o22bo16bo3bo3bob2o$4b2o63b4obo43bo
3b4obo31b4obo64b4o54b4o37bob4o52bob4o54b2ob4o42b2ob4o28bo17b2ob4o26bo
16b3ob4o$3bo16b2o33b2o17bo42bo9bo31bo4bo52b2o10bo4b2o51bo4b2o36bo4b2o
51bo4b2o54bo4b2o42bo4b2o16b11o14bo2bobo4b2o14b11o17bobo4b2o$20bobo33b
2o13b3o50b3o34b3o52bobo4bo7b3obo53b3obo36bob3obo51bob3obo54bob3obo42b
ob3obo25bo15b2o3bob3obo23bo20bob3obo$20bo34bo15bo52bo35b2o20bo35bo5b2o
4b2o41b3o12b2o41b2o38bo17b2o59b2o47b2o28bo21bobo26bo21bobo$3o178bo41b
2o50bo95b2o3b2o150bo23bo26bo23bo$2bo114bo63b3o90bo95bobo4b2o$bo115b2o
257bo$116bobo3b2o$121b2o99b3o$123bo100bo52b3o$223bo55bo$278bo$287bo141b
2o$162bobo121b2o142b2o22bo$163b2o121bobo140bo23b2o$163bo3bobo283bobo$
167b2o112bo$168bo112b2o$280bobo!

[Chris857]

Some progress on xs47_oe1e8z2fgjlmzwck542sgzw110oge21, the catalyst from the p182 B-heptomino shuttle.

Code: Select all

x = 277, y = 49, rule = B3/S23
26bo79bo79bo69bo$25bobo77bobo77bobo67bobo$25bobo77bobo77bobo67bobo$24b
2ob2o75b2ob2o75b2ob2o65b2ob2o$24bo79bo79bo69bo$25bob2o76bob2o76bob2o66b
ob2o$24b2obobo74b2obobo74b2obobo64b2obobo$25bo2b2o75bo2b2o75bo2b2o65b
o2b2o$25bo79bo79bo69bo$26b4o76b4o76b4o66b4o$28bo79bo79bo69bo$30bo79bo
79bo69bo$26b4obo74b4obo74b4obo64b4obo$26bo4bo74bo4bo74bo4bo64bo4bo$27b
o3b2o74bo3b2o74bo3b2o64bo3b2o$26b2o78b2o78b2o68b2o$111b2o78b2o68b2o$111b
obo2b2o73bobo68bo$112b2o2b2o74b2o65bo$259b2o2$120b3o$120bo$121bo5$275b
o$274b2o$274bobo6$168b2o$167bobo$169bo37b2o4b3o$206b2o5bo$208bo5bo$12b
o$12b2o40b3o$11bobo40bo$55bo2$2o60b2o$b2o59bobo$o61bo!

[MathAndCode]

Some progress on xs47_oe1e8z2fgjlmzwck542sgzw110oge21, the catalyst from the p182 B-heptomino shuttle.

Code: Select all

x = 277, y = 49, rule = B3/S23
26bo79bo79bo69bo$25bobo77bobo77bobo67bobo$25bobo77bobo77bobo67bobo$24b
2ob2o75b2ob2o75b2ob2o65b2ob2o$24bo79bo79bo69bo$25bob2o76bob2o76bob2o66b
ob2o$24b2obobo74b2obobo74b2obobo64b2obobo$25bo2b2o75bo2b2o75bo2b2o65b
o2b2o$25bo79bo79bo69bo$26b4o76b4o76b4o66b4o$28bo79bo79bo69bo$30bo79bo
79bo69bo$26b4obo74b4obo74b4obo64b4obo$26bo4bo74bo4bo74bo4bo64bo4bo$27b
o3b2o74bo3b2o74bo3b2o64bo3b2o$26b2o78b2o78b2o68b2o$111b2o78b2o68b2o$111b
obo2b2o73bobo68bo$112b2o2b2o74b2o65bo$259b2o2$120b3o$120bo$121bo5$275b
o$274b2o$274bobo6$168b2o$167bobo$169bo37b2o4b3o$206b2o5bo$208bo5bo$12b
o$12b2o40b3o$11bobo40bo$55bo2$2o60b2o$b2o59bobo$o61bo!

I added the ship more efficiently.

Code: Select all

x = 99, y = 24, rule = B3/S23
2bo79bo$bobo77bobo$bobo77bobo$2ob2o75b2ob2o$o79bo$bob2o76bob2o$2obobo
74b2obobo$bo2b2o75bo2b2o$bo79bo$2b4o76b4o$4bo79bo$6bo79bo$2b4obo74b4o
bo$2bo4bo74bo4bo$3bo3b2o74bo3b2o$2b2o78b2o$87b2o$87bobo$88bo2$90b2o$12b
3o76b2o3b2o$12bo77bo5bobo$13bo82bo!

[KtT]

xs28_gs2qr0rbz6606221 in 16G from soup:

Code: Select all

x = 149, y = 86, rule = B3/S23
14bo$12bobo$13b2o5$83bo$83bobo$83b2o$21bo$22bo$20b3o2$64bobo$64b2o$5b
o59bo$3bobo$4b2o4$15bo$16b2o$15b2o3$74bo$74bobo$74b2o6$142b2o$142b2o3$
145bob2o$143b3ob2o$142bo$142bob2ob2o$141b2ob2obo$147bo$141b2ob3o$141b
2obo3$146b2o$146b2o6$10b2o$9bobo106b2o$11bo105bobo$119bo2$69b2o$68b2o
$70bo4$80b2o$80bobo$20bo59bo$20b2o$19bobo2$63b3o$63bo$64bo$b2o115b2o$
obo114bobo$2bo116bo5$71b2o$71bobo$71bo!

[MathAndCode]

An attempt at the "harder one" (xs34_mk1f8bp6o8a6z1011343):

Code: Select all

x = 654, y = 36, rule = B3/S23
79bobo$79b2o297bo$22bo57bo295bobo$22bobo45bo218bo87b2o$22b2o44bobo218b
obo$59bo9b2o3bo214b2o44bo44bobo14bobo$18bo41b2o11bo260bo46b2o14b2o$16b
2o41b2o12b3o210bo47b3o44bo16bo$17b2o265b2o45bo106bo$285b2o42bobo41bo65b
o45bobo47bo5bo$330b2o42b2o13b2o46b3o46b2o48bo3bo$bo110bobo258b2o14b2o
95bo47b3o3b3o$2bo110b2o106bo$3o69bo40bo108b2o352bo48bo$71bobo48b2ob2o
32b2ob2o57b2o6b2ob2o53b2ob2o34b2o2b2ob2o49b2o2b2ob2o8b2o45b2ob2o45b2o
b2o35b2o6b2ob2o26bo18bob2ob2o23bo20b2ob2o$70bobo2bo47bobo2bo30b2obo2b
o63b2obo2bo49bo2bobo2bo33bo3bobo2bo48bo3bobo2bo6bobo45bobo2bo44bobo2b
o32bobo7bobo2bo25bo20bobo2bo22bo14b2o2bobobo2bo$3b2o64bo2bob2o40b3o3b
o2bob2o33bob2o66bob2o49b2o3bob2o33bobo3bob2o48bobo3bob2o6bo43bobo3bob
2o42bo3bob2o34bo5bo3bob2o16b11o14bo2bo3bob2o13b11o13bo3bo3bob2o$4b2o63b
4obo43bo3b4obo31b4obo64b4o54b4o37bob4o52bob4o53b2ob4o42bobob4o42bob4o
28bo17bob4o25bo15b3ob4o$3bo16b2o33b2o17bo42bo9bo31bo4bo52b2o10bo4b2o51b
o4b2o36bo4b2o51bo4b2o53bo4b2o39b2o2bo4b2o39bobo4b2o24bo18bobo4b2o21bo
18bobo4b2o$20bobo33b2o13b3o50b3o34b3o52bobo4bo7b3obo53b3obo36bob3obo51b
ob3obo39bobo11bob3obo43bob3obo38b2obob3obo23bo17bobobob3obo20bo21bob3o
bo$20bo34bo15bo52bo35b2o20bo35bo5b2o4b2o41b3o12b2o41b2o38bo17b2o44b2o
12b2o48b2o46b2o45b2o3b2o46bobo$3o178bo41b2o50bo95b2o3b2o57bo54bo157bo
$2bo114bo63b3o90bo95bobo4b2o112b2o$bo115b2o257bo66bo46b2o$116bobo3b2o
313b2o3b2o$121b2o99b3o211bobo3bobo$123bo100bo52b3o158bo52b2o$223bo55b
o210bobo$278bo213bo$287bo$162bobo121b2o200b2o$163b2o121bobo198bobo$163b
o3bobo319bo$167b2o112bo$168bo112b2o$280bobo!

Alternative route:

Code: Select all

x = 609, y = 41, rule = B3/S23
454bo$452b2o$453b2o3$79bobo$79b2o297bo$22bo57bo295bobo71bo$22bobo45bo
218bo87b2o70bo$22b2o44bobo218bobo157b3o$59bo9b2o3bo214b2o44bo44bobo14b
obo$18bo41b2o11bo260bo46b2o14b2o$16b2o41b2o12b3o210bo47b3o44bo16bo$17b
2o265b2o45bo164bo$285b2o42bobo41bo58bobo59b2o$330b2o42b2o13b2o42b2o60b
2o$bo110bobo258b2o14b2o42bo3bobo50b2o$2bo110b2o106bo215b2o50bobo$3o69b
o40bo108b2o214bo52bo$71bobo48b2ob2o32b2ob2o57b2o6b2ob2o53b2ob2o34b2o2b
2ob2o49b2o2b2ob2o8b2o46b2ob2o40bo3b2ob2o48b2ob2o46b2ob2o$70bobo2bo47b
obo2bo30b2obo2bo63b2obo2bo49bo2bobo2bo33bo3bobo2bo48bo3bobo2bo6bobo46b
obo2bo37bobo3bobo2bo23bo21bobobo2bo21bo17b2o2bobobo2bo$3b2o64bo2bob2o
40b3o3bo2bob2o33bob2o66bob2o49b2o3bob2o33bobo3bob2o48bobo3bob2o6bo44b
obo3bob2o38bo2bo3bob2o24bo20bo3bob2o22bo16bo3bo3bob2o$4b2o63b4obo43bo
3b4obo31b4obo64b4o54b4o37bob4o52bob4o54b2ob4o42b2ob4o28bo17b2ob4o26bo
16b3ob4o$3bo16b2o33b2o17bo42bo9bo31bo4bo52b2o10bo4b2o51bo4b2o36bo4b2o
51bo4b2o54bo4b2o42bo4b2o16b11o14bo2bobo4b2o14b11o17bobo4b2o$20bobo33b
2o13b3o50b3o34b3o52bobo4bo7b3obo53b3obo36bob3obo51bob3obo54bob3obo42b
ob3obo25bo15b2o3bob3obo23bo20bob3obo$20bo34bo15bo52bo35b2o20bo35bo5b2o
4b2o41b3o12b2o41b2o38bo17b2o59b2o47b2o28bo21bobo26bo21bobo$3o178bo41b
2o50bo95b2o3b2o150bo23bo26bo23bo$2bo114bo63b3o90bo95bobo4b2o$bo115b2o
257bo$116bobo3b2o$121b2o99b3o$123bo100bo52b3o$223bo55bo$278bo$287bo141b
2o$162bobo121b2o142b2o22bo$163b2o121bobo140bo23b2o$163bo3bobo283bobo$
167b2o112bo$168bo112b2o$280bobo!

Here are some reaction sketches that might be helpful.

Code: Select all

x = 246, y = 159, rule = B3/S23
84b2o2b2o3bo$84b3o6bo$82b4obo2b2o3bo$81b3o4b4o3bo16bobo$80bo2b2o10bo17b
2o$81bobo12bo16bo$81bo4b2ob2o$87bobo2bo27b2ob2o25b2ob2o$85bo3bob2o26b
obobo2bo18b2o2bobobo2bo22b2ob2o$79b2o3bob4o21b2o6bo3bob2o18bo3bo3bob2o
17b2o2bobobo2bo$79b3o2bobo4b2o17bobo4b2ob4o22b3ob4o20bo3bo3bob2o$79b2o
2b2obob3obo19bo5bobo4b2o21bobo4b2o18b3ob4o$77bo9b2o29bobob3obo21bobob
3obo20bobo4b2o$117b2obobo24b2obobo24bobob3obo$121bo29bo24b2obobo$145b
o34bo$85b2o2b2o$83b2ob2obobo54b3o2b3o$83b2o4bo58bo2bo22b2o$147bo4bo20b
obo5b3o$83b4o88bo5bo$83bo3bo94bo$94b2o82b2o$85b3o5b2o83bobo$95bo77b2o
3bo$174b2o$173bo22$52bo4bobo$50b2o5b2o$51b2o5bo$51bo$51bo$52bo$50b3o3b
obo$56b2o$57bo2$46bo3b2o$44bobo3b2o$5b2o38b2o6b2o3b2ob2o$6bo32bo13bob
obobobo2bo$2o38bo14bobo3bob2o$2bo3b2o2b2ob2o23b3o14b2ob4o$b3o3bo3bobo
2bo41bo4b2o$2b3o2bobo3bob2o32b2o7bob3obo$8bob4o32bob2obo7b2o$2bo7bo4b
2o27b2obobobo$6b2o2bob3obo27b2obo2b2o$11b2o33bo2$56b2o5bo$55bobo4b2o$
57bo4bobo$56bo$56b3o138bo$50bo5bobo136bobo$50b2o4bobo8b2o127b2o$49bob
o15bobo169bo$67bo132bo38bobo$191bo6b2o39b2o$192bo6b2o$190b3o2$111b2o$
109bo3bo$110bo89b2ob2o$111b2o2b2ob2o76b2o3bobo2bo29bo$116bobo2bo74bo2b
o3bob2o28bobo$111bo2bo3bob2o75b2ob4o30bo2bo$113bob4o79bobo4b2o28b2o$113b
obo4b2o74bobobob3obo$111bobobob3obo74b2o3b2o$111b2o3b2o$149bo$149bo$150b
o$151b2o2b2ob2o79b2ob2o$156bobo2bo76bobobo2bo$151bo2bo3bob2o76bo3bob2o
$153bob4o77b2ob4o$153bobo4b2o75bobo4b2o$151bobobob3obo73bobobob3obo$151b
2o3b2o77b2o3b2o$113bo$108bo3b5o$108bobo$108bo5bo79bobo$111b2o3b2ob2o73b
2o$110b3o4bobo2bo72bo$110b2o3bo3bob2o68b2o6b2ob2o$114bob4o72b2ob2o3bo
bo2bo$114bobo4b2o68bo3bo2bo3bob2o$112bobobob3obo73b2ob4o$112b2o3b2o78b
obo4b2o$195bobobob3obo$191bo3b2o3b2o$192bo$192bo$192bo3bo$190bobo3bo$
195bo17$166b2o$170bo$167bo3b3o$163bo2b4o$162b2o5b2o$163bo2bo3b3o$165b
o2bo$164bo3b3o$163bobo6b2ob2o$161bo3bo7bobo2bo$161b4o6bo3bob2o$163bo2b
o3bob4o$170bobo4b2o$165bo2bobobob3obo$165bobobo3b2o$168bo$164b2o$166b
o4b2o$164bo2b2o2bo$170bo$166bo!

Getting that overlapping-nine-and-claw motif (as found in trans-Cerberus) seems easier than the left-most step of the top row, but there are still clearance difficulties. The following method would get past some but not all of said clearance difficulties.

Code: Select all

x = 18, y = 21, rule = B3/S23
5b2o$9bo$6bo3b3o$2bo2b4o$b2o5b2o$2bo2bo3b3o$4bo2bo$3bo3b3o$2bobo6b2ob
2o$o3bo7bobo2bo$4o6bo3bob2o$2bo2bo3bob4o$9bobo4b2o$4bo2bobobob3obo$4b
obobo3b2o$7bo$3b2o$5bo4b2o$3bo2b2o2bo$9bo$5bo!

Of course, as your alternative route all but exactly demonstrates, it's at least possible to make the claw motif first. However, making the overlapping nine motif afterwards seems even more difficult.



Edit:

Some progress on xs47_oe1e8z2fgjlmzwck542sgzw110oge21, the catalyst from the p182 B-heptomino shuttle.

I added the ship more efficiently.

Code: Select all

x = 99, y = 24, rule = B3/S23
2bo79bo$bobo77bobo$bobo77bobo$2ob2o75b2ob2o$o79bo$bob2o76bob2o$2obobo
74b2obobo$bo2b2o75bo2b2o$bo79bo$2b4o76b4o$4bo79bo$6bo79bo$2b4obo74b4o
bo$2bo4bo74bo4bo$3bo3b2o74bo3b2o$2b2o78b2o$87b2o$87bobo$88bo2$90b2o$12b
3o76b2o3b2o$12bo77bo5bobo$13bo82bo!

I found a further improvement, where we can use the boat directly instead of having to turn it into a ship first.

Code: Select all

x = 28, y = 29, rule = B3/S23
7bo$6bobo$6bobo$5b2ob2o$5bo$6bob2o$5b2obobo$6bo2b2o$6bo$7b4o$9bo15bo$
11bo12bo$7b4obo11b3o$7bo4bo$8bo3b2o$7b2o$12b2o12bo$12bobo10bo$13bo11b
3o6$b2o19bo$obo18b2o$2bo13b2o3bobo$15b2o$17bo!

Another edit: I found an alternative way to perturb the tub that crowds the claw-addition region slightly less.

Code: Select all

x = 18, y = 20, rule = B3/S23
5b2o$9bo$6bo3b3o$2bo2b4o$b2o5b2o$2bo2bo3b3o$4bo2bo$3bo3b3o$2bobo6b2ob
2o$o3bo7bobo2bo$4o6bo3bob2o$2bo2bo3bob4o$9bobo4b2o$7bobobob3obo$6bobo
3b2o$7bo$4b2o$4bo3bo$7b3o$6bo3b2o!