Still Life Synthesis Thread

[I6_I6]

Crossposting some possible synthese:

Code: Select all

x = 64, y = 71, rule = B3/S23
59bo$59bobo$59b2o$4bo$2bobo$3b2o3$52bo$52bobo$52b2o17$5bo$4bo$4b3o2$o
bo$b2o8bo$bo9bobo$11b2o25$49b2o$48b2o$50bo4$b2o$obo$2bo$61b2o$61bobo$
61bo!

Code: Select all

x = 20, y = 32, rule = B3/S23
5bo$6bo$4b3o9$14b3o$8b2o3bo3bo$8b2o3b2ob2o$12bo4bo$12b2ob2o$12bo3bo$13b
3o2$18b2o$18b2o3$4bo8bo$4bo7bobo$4bo8b2o2$3o3b3o2$4bo$4bo$4bo!

Code: Select all

x = 25, y = 27, rule = B3/S23
4bo$3bobo$3bo2bo$4b2o3$6b2o$2o4b2o$2o3$2bo$3o20bo$obo19bobo$bo20b3o$22b
o3$23b2o$17b2o4b2o$17b2o3$19b2o$18bo2bo$19bobo$20bo!

The first one is basically a complete synthesis, which I've already completed in 11G. The third is an oscillator synthesis, but the second looks promising.
EDIT:
Actually, all of these already have pretty minimal syntheses.

[hotcrystal0]

Alternative 8G synthesis for xs16_0gila8oz3421:

Code: Select all

x = 113, y = 21, rule = B3/S23
54bo$44bobo5b2o$45b2o6b2o$3bo41bo63bo$2bobo77b3o23bobo$3bo20bo35bo30b
o17bo$3o22bo7bo25bobo28bobo13b3o$o2b3o17b3o7bobo23bobo28bobo13bo2b3o$
3bo2bo26b2o25bo30bo17bo2bo$4bobo23bo79bobo$5bo22b2o81bo$29b2o2$88bo15b
2o$56b3o29bo15b2o$88bo$74b3o6b2o$76bo5b2o$75bo8bo14b3o$101bo$100bo!

I'm not sure if this is useful for anything.

[WhiteHawk]

Somewhat related to the xs23 project, but something I though would be better here, but I recently noticed several synthesis in the collection (at least on Catagolue) suffer from unnecessary steps which undo/redo previous steps which ultimately cost unnecessary gliders.

For example, here is the current synthesis for xs23_0o80j5c4goz8k9611

Code: Select all

x = 743, y = 49, rule = B3/S23
66bo$67bo$65b3o$82bo$81bo$81b3o6$81bo$79b2o$80b2o3$324bo$2bo321bobo359b
o$obo47bo273b2o294bo63b2o$b2o3bo41bobo70bo317bobo143b2o34bo63b2o$5bo33b
o9b2o69bo16b2o61b2o38b2o45bo15b2o61b2o56b2o13b2o34b2o52b2o42b2o4bobo3b
obo31b3o12b2o39b2o45b2o$5b3o32bo79b3o14bo62bo39bo40bo3bobo15bo62bo57b
o15bo34bo53bo43bo6b2o3bo48bo40bo46bo$38b3o97b3obo14b2o42b3obo35b3obo36b
o3b2o16b3obo58b3obo53b3obo46b3obo49b3o41b3o3bo54b3o38b3o44b3obo$139bo
b2o14b2o43bob2o31b2o3bob2o34b3o17b2o3bob2o54b2o3bob2o49b2o3bob2o42b2o
3bob2o45b2o3bo2bo35b2o3bobo53b2o3bobobo31b2o3bobobo5bo31b2o3bob2o$118b
2o14b2obo59b2obo36bo2bo59bo2bo59bo2bo54bo2bo47bo2bo50bo2bo3b2o35bo2bo
4bo52bo2bo4b2o31bo2bo4b2o3b2o32bo2bo$41b2o42b3o30b2o14bob3o52bo5bob3o
36bob2o59bob2o8bo50bob2o54bob2o47bob2o50bob2o6bobo31bob2o4bo52bob2o37b
ob2o9b2o32bob2o$40bobo96bo14b3o35b2o8bo36bo2bo59bo10bobo49bo57bo50bo53b
o8b2o33bo5b2o53bo40bo46bo$42bo39b2o54b2o16bo34b2o8b2o38b2o60bobo7b2o51b
2o56b2o46bobo51bobo9bo31bobo58bobo38bobo44bobo$82bobo70bo39b2o107b2o61b
o57bo46b2o52b2o42b2o46bobo3bo6b2o38bobo10b2o32bobo$82bo111b2o51bo62b2o
53bo58bo55b3o3bo90b2o40b2o4b2o45bo11bobo32bo7b3o3bo$196bo50bobo48bo11b
obo52b2o57b2o56bo2b2o49b2o38b2o41bo4b2o58bo44bo2b2o$247b2o47bobo11bo164b
o5bo3bobo47b2o41bo143bo5bo3bobo$190b2o44b2o5b2o52b2o176b2o60bo184b2o$
189bobo45b2o4bobo55b3o170bobo244bobo$51b2o138bo44bo6bo57bo322b3o$52b2o
248bo108b2o213bo$51bo319b2o37bobo8b2o12b3o187bo$357b2o11b2o40bo8bobo11b
o58b2o245b2o$294b2o62b2o6b2o4bo48bo14bo56b2o138b2o105b2o$295b2o60bo7b
obo46b2o79bo136b2o108bo$294bo72bo46bobo217bo$321bo92bo$49b3o268b2o$51b
o245bo22bobo$50bo234bo11b2o65b2o$65b3o217b2o9bobo66b2o36b3o$65bo218bo
bo30b3o44bo40bo$66bo250bo86bo$318bo!

These five steps at the end involve 16 gliders, 11 of which involve converting an aircraft carrier to a canoe to a snake to a long-1 snake and back to an aircraft carrier, punctuated by the conversion of an eater head to a tub-with tail head.

Code: Select all

x = 217, y = 24, rule = B3/S23
160bo$94bo63b2o$59b2o34bo63b2o$3b2o42b2o4bobo3bobo31b3o12b2o39b2o45b2o
$3bo43bo6b2o3bo48bo40bo46bo$4b3o41b3o3bo54b3o38b3o44b3obo$2o3bo2bo35b
2o3bobo53b2o3bobobo31b2o3bobobo5bo31b2o3bob2o$o2bo3b2o35bo2bo4bo52bo2b
o4b2o31bo2bo4b2o3b2o32bo2bo$bob2o6bobo31bob2o4bo52bob2o37bob2o9b2o32b
ob2o$2bo8b2o33bo5b2o53bo40bo46bo$obo9bo31bobo58bobo38bobo44bobo$2o42b
2o46bobo3bo6b2o38bobo10b2o32bobo$51b2o40b2o4b2o45bo11bobo32bo7b3o3bo$
10b2o38b2o41bo4b2o58bo44bo2b2o$9b2o41bo143bo5bo3bobo$11bo184b2o$195bo
bo$98b3o$100bo$99bo$215b2o$107b2o105b2o$106b2o108bo$108bo!

However, the snake conversion ends up being completely unnecessary since the eater to tub conversion can ultimately occur without the need to convert the carrier end, reducing the synthesis from 63 cells to 52 cells

Code: Select all

x = 22, y = 23, rule = B3/S23
2bo$3bo$b3o12b2o$16bo$17b3o$13b2o3bo2bo$13bo2bo3b2o$14bob2o$15bo$13bo
bo$obo3bo6b2o$b2o4b2o$bo4b2o4$6b3o$8bo$7bo2$15b2o$14b2o$16bo!

I have reduced at least two dozen or so xs23 syntheses in this manner. If anyone wants to go through the collection and find more unnecessary aircraft/snake conversions, there are probably a lot of syntheses which can be reduced by removing similar unnecessary conversion steps.

[KtT]

xs64_x8e1v0sicz0mk1v0v0mmzo5t0v0ra01z01w321 in 14G from soup:

Code: Select all

x = 169, y = 91, rule = B3/S23
72bo$70bobo$71b2o3$27bo32bobo$27bobo31b2o$27b2o32bo5$20bo$19bo$19b3o8$
137bo$137bobo$137b2o2$104bo$102bobo$103b2o5$118bo$118bo$118bo5$97b2o$
97b2o8$20b2o108b2o$20b2o108b2o5$o109bo$o109bo$o17bo91bo$17b2o$17bobo3$
124b2o$124bobo$124bo2$90b2o$89bobo$91bo15$167bo$166b2o$166bobo3$156b2o
$156bobo$156bo!

[I6_I6]

Possible but hard potential method for a constellation of 4 cis-boat with tails:

Code: Select all

x = 11, y = 11, rule = B3/S23
2o7b2o$bo7bo$bobo3bobo$2b2o3b2o$5bo$5bo$5bo$2b2o3b2o$bobo3bobo$bo7bo$
2o7b2o!

I haven't been able to find anything that can fit the fishhooks in there.
It's much easier to just add the tails like this:

Code: Select all

x = 21, y = 24, rule = B3/S23
16bobo$2o7b2o5b2o$bo7bo7bo$bob2ob2obo$2bobobobo$3bo3bo2$3bo3bo8bo$2bob
obobo5b2o$bob2ob2o7b2o$bo$2o$17b2o$17bobo$17bo7$18b2o$18bobo$18bo!

But I'll be interested to see it completed in the first method.

[ElijahKen]

-2g to xs29_0g89fgkczg5t178cz11 (table variant of the hickerson eater):

Code: Select all

x = 66, y = 20, rule = B3/S23
3b2o49b2o$4bo50bo$4bob2o47bob2o$2b3o2bo45b3o2bo$bo3b2o45bo3b2o5bobo$b
4o47b4o7b2o$4bo50bo8bo$b2obob2o44b2obob2o$obobo2bo43bobobo2bo$bo3b2o
45bo3b2o2$59b2o$8bo49bo2bo$8b2o3b2o36b2o5bo2bo$7bobo3bobo29bo4b2o7b2o$
13bo31b2o5bo$44bobo$57b2o$58b2o$57bo!

Old steps:

Code: Select all

x = 108, y = 20, rule = B3/S23
7b2o36b2o49b2o$8bo37bo50bo$8bob2o34bob2o47bob2o$6b3o2bo32b3o2bo45b3o2b
o$5bo3b2o32bo3b2o45bo3b2o5bobo$5b4o34b4o47b4o7b2o$8bo37bo50bo8bo$5b2ob
ob2o31b2obob2o44b2obob2o$4bobobo2bo30bobobo2bo43bobobo2bo$5bo3b2o31b2o
3b2o44b2o3b2o$2bo85bobo$obo86b2o10b2o$b2o47bo38bo10bo2bo$6b2o42b2o3b2o
43bo2bo$5b2o42bobo3bobo43b2o$7bo47bo36b3o$94bo$93bo5b2o$100b2o$99bo!

EDIT: This is not rewindable. However, a 1g reduction should still be possible.

[Chris857]

-2g to xs29_0g89fgkczg5t178cz11 (table variant of the hickerson eater):

Code: Select all

x = 66, y = 20, rule = B3/S23
3b2o49b2o$4bo50bo$4bob2o47bob2o$2b3o2bo45b3o2bo$bo3b2o45bo3b2o5bobo$b
4o47b4o7b2o$4bo50bo8bo$b2obob2o44b2obob2o$obobo2bo43bobobo2bo$bo3b2o
45bo3b2o2$59b2o$8bo49bo2bo$8b2o3b2o36b2o5bo2bo$7bobo3bobo29bo4b2o7b2o$
13bo31b2o5bo$44bobo$57b2o$58b2o$57bo!

This does not seem to be rewindable.

[KtT]

xs19_8ehn84czw1226 in 12G from soup, down from 19G:

Code: Select all

x = 194, y = 126, rule = B3/S23
74bo$75b2o$74b2o21$69bobo$70b2o$70bo9$78bo$79bo$77b3o6$37bo$36bo$36b3o
$bo$2bo$3o16$121b2o$120bo2bo$121b2o$31bo102bo$30bobo100bobo$30bo2bo99b
o2bo$31b2o101b2o4$10bo102bo$9bobo100bobo$9bobo100bobo$10bo102bo13$139b
3o$139bo$140bo$101bo$101b2o$100bobo29$191b3o$191bo$192bo!

xs34_1no3tgzwbs1u8zx56074 in 16G from soup:

Code: Select all

x = 209, y = 88, rule = B3/S23
95bo85bo$96bo83bo$94b3o83b3o5$53bo$53bobo$53b2o7$8bo$6bobo34bo$7b2o34b
obo$43b2o3$158bo$157bo$157b3o18bo$178bobo$178b2o6$138b2o$138b2o5$135b
o$135bo$135bo2$131b3o3$61b3o105b3o2$59bo107bo$59bo107bo$59bo107bo5$bo
53b2o106b2o$b2o52b2o106b2o$obo5$123b2o$122bobo$124bo18b3o$145bo$144bo
20$120b3o83b3o$122bo83bo$121bo85bo!

[PK22]

xs120_y2gg0j96069j0ggzggwmk4b413x314b4kmwggzhaah0hhy7hh0haahz11wd54q4goxog4q45dw11zy2110pic0cip011 (pseudo still life) in 12G:

Code: Select all

x = 39, y = 39, rule = B3/S23
23bo$23bobo$23b2o$12bobo$12b2o$13bo7$34b2o$bo31b2o$2bo14bobo15bo$3o14b
2o$18bo$23b2o$22b2o$14bo9bo$15b2o$14b2o$20bo$20b2o14b3o$3bo15bobo14bo$
4b2o31bo$3b2o7$25bo$25b2o$24bobo$14b2o$13bobo$15bo!

[ElijahKen]

Related still life, xs30_xg8imk2156zgb607401z123, in 12g, down from 18g (found by hand):

Code: Select all

x = 47, y = 47, rule = B3/S23
29bobo$29b2o$30bo2$22bobo$22b2o$23bo2$32bo$30b2o$31b2o4$36bobo$36b2o8b
o$37bo6b2o$45b2o$5bo$4bo$4b3o2$42bo$40b2o$41b2o5$o9bo$b2o6bo$2o7b3o4$
15bo$15bobo$15b2o3$26bo$26bobo$26b2o2$16bo$15b2o$15bobo!

Edit: Note: I found this by modifying the old synthesis.
EDIT 2:
Incredibly, now reduced to 8g (via better cleanup):

Code: Select all

x = 41, y = 41, rule = B3/S23
23bo$21b2o$22b2o10$5bo$4bo$4b3o3$38bobo$38b2o$39bo4$o9bo$b2o6bo$2o7b3o
4$15bo$15bobo$15b2o3$26bo$26bobo$26b2o2$16bo$15b2o$15bobo!

[PK22]

xs18_mk21lmz122101 in 20G, down from 29G, thanks to my Quasi_C2_2_Test runs:

Code: Select all

x = 347, y = 94, rule = B3/S23
71bo$70bo$70b3o9$319bo$320bo$318b3o2$323b2o$322bo2bo$267bo55b2o$267bob
o$267b2o3$o74bo$b2o72bobo$2o73b2o$246b2o2b3o$245bo2bo$246b2o$257bo12bo
bo57b2ob2o$255b2o13b2o59bobobo$256b2o13bo58bo4bo$147b2o2b3o175bo4bo$
146bo2bo179bobobo$147b2o181b2ob2o2$133bobo104bo$134b2o104bo19b2o$134bo
105bo19bobo$260bo$232bo$230bobo19bo$231b2o19bo$252bo$163bo$131b2o28b2o
177b2o$132b2o28b2o175bo2bo$131bo208b2o$221bo13b2o$221b2o13b2o106b3o$
220bobo12bo108bo$245b2o98bo$244bo2bo$160bo79b3o2b2o$159b2o$159bobo2$
146b2o$145bo2bo$141b3o2b2o76b2o$223bobo$225bo9$8b2o73b2o$7bobo72b2o$9b
o74bo20$12b3o$14bo$13bo!

Old synth:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs18_mk21lmz122101 costs 29 gliders (pseudo).
#CLL state-numbering golly
x = 226, y = 43, rule = B3/S23
118bo$119b2o$118b2o3$105bo$62bo43bo59bo$54bo6bo42b3o60b2o$55bo5b3o
102b2o$53b3o$59bo109bo$60bo108bobo$58b3o108b2o2$3bobo126b2o41bobo$
3b2o113bo11bo2bo36b2o3b2o$4bo48bo19bo45bo10b3o37b2o4bo$54b2o15b2o
44b3o$2bo17bo32b2o8bo8b2o58b3o35b4o5bo38b2o$obo17bobo39bobo66bo3bo
33bo4bo3b2o37bo2bobo$b2o17b2o38b3ob3o64b2ob2o33b2o2b2o3bobo36b2o2b
2o$59bo7bo48b2o$60b3ob3o50b2o12b2ob2o33b2o2b2o36bobo3b2o2b2o$8bo
53bobo51bo14bo3bo33bo4bo37b2o3bo4bo$7b2o44b2o8bo8b2o58b3o35b4o38bo
5b4o$7bobo44b2o15b2o$53bo19bo58b3o37b2o41bo4b2o$132bo2bo36b2o41b2o
3b2o$17b3o100b2o12b2o78bobo$17bo101bobo$18bo41b3o58bo99b2o$62bo
157bobo$61bo160bo$55b3o$57bo5b3o158b2o$56bo6bo159b2o$64bo160bo4$
120b2o$121b2o$120bo! 

The max cost of pseudo 18-cell still lifes is reduced to 24G. Next target is xs18_8e12kmz31243.
EDIT 27/11: xs26_9f0c88gz330355lo in 13G, down from 21G, thanks to a Quasi_1G_Seeds_stdin result:

Code: Select all

x = 310, y = 102, rule = B3/S23
53bo$54bo$52b3o33$252bo$251bo$251b3o2$69bobo$70b2o$70bo15$213b2o$209b
2obobo$208bobobo$208bobobo$207b2ob2o2$207b2ob2o$206bobob2o$207bo$223bo
84b2o$222bobo79b2obobo$210bo11bobo78bobobo$209bobo11bo79bobobo$209bo2b
o89b2ob2o$129b2o79b2o$128bo2bo165bo4b2ob2o$129b2o85b3o79bo2bobob2o$
296b3o3bo$214bo5bo$8b2o204bo5bo$8bobo203bo5bo$8bo286b3o$b2o213b3o76bo$
obo203b2o88bo$2bo202bo2bo$206b2o$220b3o$220bo$221bo4$125b2o$125bobo
103b3o$121bo3bo105bo$121b2o109bo$120bobo2$128b2o$128bobo$128bo3$192b2o
$191bobo$193bo!

[ElijahKen]

-5g to xs21_0gad1eoz320f9:

Code: Select all

x = 22, y = 32, rule = B3/S23
19bobo$obo16b2o$b2o17bo$bo4bobo$7b2o$7bo$2bobo$3b2o$3bo3$15b2o$11b2obo
2bo$11b2obobo$14bob2o$14bo3bo$15b2o2bo$16bob2o$16bo$15b2o2$6bo$6b2o$5b
obo2$9b2o$8bobo$10bo2$12b2o$12bobo$12bo!

[KtT]

xs21_4akg9fg4czw6221 in 76G, down from 84G:

Code: Select all

x = 222, y = 62, rule = B3/S23
44bo$bo41bo$2bo40b3o$3o2$7bo$8bo$6b3o9$84bobo$85b2o$85bo4$31bo74bo92b
o$30bobo72bobo90bobo$29bobo69b2obobo87b2obobo$29bo72bobo90bobo$30bo71b
o2bo89bo2bo$28bob3o70bob3o88bob3o$28b2o3bo70bo3bo88bo3bo$31b2obo71b2o
bo88b4o$32bo2bo71bo2bo$30bo3b2o69bo3b2o89b2o$30b2o73b2o93b2o8$2b2o$3b
2o$2bo4$6b2o$5bobo$7bo2$42bo$41b2o80bo$41bobo78b2o89bo$122bobo51bo35b
2o5b2o$176b2o34bobo4bobo$175bobo41bo4$52bo123b2o$51b2o122bobo$51bobo123b
o!

xs21_o8b9ak8zca321 in 75G, down from 82G:

Code: Select all

x = 343, y = 63, rule = B3/S23
127bo$126bo$126b3o$132bo$132bobo$92bobo37b2o$93b2o$93bo$46bo$obo42bo$
b2o42b3o$bo$56bobo$56b2o$57bo8$91bo$89bobo$90b2o4$171b2o76b2o66b2o$171b
o2bo74bo2bo64bo2bo$172b3o75b3o65b3o$114bo$112b5o55b5o73b5o63b5o$111bo
5bo53bo5bo71bo4bo62bo4bo$112bobo2bo54bobo2bo72bobo65bobo$113b4o56b4o74b
3o65b3o2$113b2o58b2o76b3o65b3o$113b2o57bobo75bo2bo64bo2bo$172b2o76b2o
67b2o7$46b2o91bo$45b2o91b2o$47bo90bobo2$197bo$5b2o189b2o$4bobo189bobo
$6bo2$340b2o$340bobo$95bo36b2o206bo$95b2o35bobo94b3o67b3o$94bobo35bo98b
o69bo$230bo35b2o32bo$266bobo$266bo!

The maximum synthesis cost for 21-cell still life is lowered to 80G.

[Chris857]

xs21_0j9m44oz34a511 in 17G from soup, down from 73G.

Code: Select all

x = 430, y = 146, rule = B3/S23
124bobo$124b2o$125bo52$247bobo$195bo51b2o$196b2o50bo$195b2o6$31bo$29b
2o272bo$30b2o272b2o$303b2o$o$b2o$2o299bo$299bobo$300b2o2$227b2o$226bo
2bo$216b2o9b2o$215bobo$215b2o4$224b2o108b2o87b2o$215b2o6bo2bo2b2o94b2o
6bo2bo2b2o81bo2bo2b2o$4bo210b2o5bobo2bo2bo94b2o5bobo2bo2bo80bobo2bo2b
o$3bobo217bob2ob2o103bob2ob2o82bob2ob2o$3b2o207b2o11bo2bo93b2o11bo2bo
85bo2bo$212b2o11bo2bo93b2o11bo2bo85bo2bo$220b2o4b2o102b2o4b2o81b2o4b2o
$26bo193b2o108b2o87b2o$25bo$25b3o$223b2o108b2o87b2o$223bobo107bobo86b
obo$213bo10bo98bo10bo88bo$213bo109bo$213bo109bo5$b2o$b2o7$397b2o$21b2o
373bobo$21bobo374bo$21bo3$400b2o$399bobo$401bo$23b3o$23bo$24bo24$90b2o
$89b2o$91bo!

previous synth

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs21_0j9m44oz34a511 costs 73 gliders (true).
#CLL state-numbering golly
x = 798, y = 148, rule = B3/S23
741bo$741bobo$741b2o$735b2o$734bobo$736bo4b2o$740b2o$742bo31$689bo
bo94bobo$690b2o94b2o$682bo7bo96bo$683bo$681b3o3bo$688bo$686b3o$
781bo$779b2o$689bo90b2o$690bo$688b3o$782bo$781bo8bo$781b3o4b2o$
789b2o2$787bo$785b2o$786b2o24$251bo376bo$55bo196b2o375bo$56b2o44bo
bo146b2o279bo94b3o$55b2o45b2o362bo65bobo$103bo362bobo56bobo4b2o$
199bobo258bobo3b2o58b2o111bo$96bobo101b2o259b2o7bobo4bo48bo110bobo
$2bo56bo3bobo31b2o101bo9bo250bo8b2o5bobo40bo47bo62bo6b2o$obo57bo2b
2o32bo3bobo5bo99bo118bo142bo5b2o42bo6bo37bobo60bobo$b2o21bo33b3o3b
o36b2o4b2o100b3o46bo67b2o37bo153b3o6bobo36b2o10bo50b2o$22b2o78bo5b
2o149b2o66b2o37bo161b2o47b2o47b2o$23b2o129bo103b2o104b3o112bobo33b
2o61b2o45bobo$152b2o325b2o35b2o73bo35bo19bo$14bo128b2o8b2o44b2o13b
o36bobo16b2o5b2o32b2o5b2o6b2o3bo36b2o110bo34bo17b2o54b3o53b3o79b2o
$13bo46b2o38bo2b2o37bo2bo52bo2bo12bobo35b2o3b2o10bo2bo3bobo32bobo
3bobo5b2o4bobo34bobo3b2o34b2o3b2o48b2o3b2o51b2o8bobo41b2o9bo45bo6b
o2bo81bo2bo$13b3o43bo2bo36bobo2bo36bobo2bo50bobo2bo11b2o36bo5b2o8b
obo2bo2bo32bobo2bo2bo9bo3b2o33bobo2bo2bo32bobo2bo2bo46bobo2bo2bo
49bobo2bo7bo42b2o7b2o2bo44b2o4bobo2bo79bobo2bo$18b2o39bob2o37bob2o
38bob2o5b2o45bob2obo14b2o37bo11bob2obob2o31b2ob2obob2o47b2ob2obobo
bo30b2ob2obobobo9bobo32b2ob2obobo49b2ob2obob2o48bo6bob2obob2o39bob
o5bob2obob2o76bob2obob2o$17b2o38bobobo36bobobo37bobobo5b2o5b2o37bo
bobo2bo14bobo50bo2bo37bo2bo53bo2bo2b2o33bo2bo2b2o9b2o36bo2bobob2o
49bo2bobo58bo2bobo50bo2bobo79bo2bobo$19bo37b2o4bo34b2o4bo35b2o4bo
5bo3b2o38b2o3b2o15bo52bo2bo37bo2bo53bo2bo37bo2bo14bo36bo2bobo2bo
38b2o9bo2bobobo56bo2bobobo48bo2bobobo77bo2bobobo$62b2o39b2o40b2o
11bo51b2o60b2o39b2o55b2o39b2o53b2o3b2o40b2o9b2o3b2o57b2o3b2o49b2o
3b2o78b2o3b2o$209b2o301bo$189b2o20bo$15b3o133bo38b2o$17bo132b2o37b
o24bo205b3o$16bo133bobo52b2o6b2o205bo$192b3o9b2o7bobo200b2o3bo$
194bo11bo208bobo$193bo223bo$200b2o$199bobo$201bo4$195b2o$194bobo$
196bo16$796bo$795b2o$795bobo5$791bo$790b2o$790bobo3$782b2o$782bobo
$782bo!

Edit: 16G

Code: Select all

x = 149, y = 146, rule = B3/S23
146bobo$146b2o$147bo61$53bo$51b2o$52b2o2$22bo$23b2o$22b2o14$26bo$25bo
bo$25b2o3$48bo$47bo$47b3o19$43b2o$43bobo$43bo6$45b3o$45bo$46bo$2o$b2o
$o21$112b2o$111b2o$113bo!

[ElijahKen]

xs21_0j9m44oz34a511 in 17G from soup, down from 73G.
...
Edit: 16G

Code: Select all

x = 149, y = 146, rule = B3/S23
146bobo$146b2o$147bo61$53bo$51b2o$52b2o2$22bo$23b2o$22b2o14$26bo$25bo
bo$25b2o3$48bo$47bo$47b3o19$43b2o$43bobo$43bo6$45b3o$45bo$46bo$2o$b2o
$o21$112b2o$111b2o$113bo!

14g:

Code: Select all

x = 41, y = 42, rule = B3/S23
17bo$18b2o$6bo10b2o$7b2o$6b2o$o$b2o$2o12$37b2o$36bo2bo$26b2o9b2o$25bob
o$25b2o4$34b2o$25b2o6bo2bo2b2o$25b2o5bobo2bo2bo$33bob2ob2o$22b2o11bo2b
o$16b2o4b2o11bo2bo$15bobo12b2o4b2o$17bo12b2o3$33b2o$33bobo$23bo10bo$
23bo$23bo!

EDIT: xs20_0gg0si96z34b8o -1g to 6g:

Code: Select all

x = 25, y = 14, rule = B3/S23
10bo$8b2o$9b2o2$19bo$17b2o$2o16b2o$b2o19bobo$o10b2o9b2o$11bobo9bo$11bo
$15b3o$15bo$16bo!

[hibiscus]

xs29_0caab96zgjl453z1023 in 11G from soup:

Code: Select all

x = 101, y = 87, rule = B3/S23
2bo$obo$b2o28$27bobo$28b2o$28bo5bo$35b2o$34b2o6$61bo$60bo$60b3o3$42bo$
40bobo$41b2o$25bo27b3o$25b2o26bo$24bobo27bo3$36b2o$35bobo$37bo$43b2o$
43bobo$43bo2$59b2o$58b2o$60bo22$99b2o$98b2o$100bo!

[KtT]

xs32_g8o6khv079cz1247066 in 10G from soup:

Code: Select all

x = 194, y = 53, rule = B3/S23
191bo$46bo70bo73bobo$44b2o71bobo71b2o$45b2o70b2o14$18b2o61b2o71b2o$17b
o2bo59bo2bo69bo2bo$18b2o61b2o71b2o3$87bo72bo$15bo62bo7bobo62bo7bobo$14b
obo60bobo6bobo61bobo6bobo$15b2o61b2o7bo63b2o7bo3bo$163bobo$163bobo$164b
o$84b2o71b2o$84b2o71b2o15$2o$b2o$o186b2o$187bobo$114b2o71bo$43b3o68bo
bo$43bo70bo$44bo!

[ElijahKen]

xs29_0caab96zgjl453z1023 in 11G from soup:

Code: Select all

x = 101, y = 87, rule = B3/S23
2bo$obo$b2o28$27bobo$28b2o$28bo5bo$35b2o$34b2o6$61bo$60bo$60b3o3$42bo$
40bobo$41b2o$25bo27b3o$25b2o26bo$24bobo27bo3$36b2o$35bobo$37bo$43b2o$
43bobo$43bo2$59b2o$58b2o$60bo22$99b2o$98b2o$100bo!

Reduced to 10g:

Code: Select all

x = 117, y = 102, rule = B3/S23
2bo$obo$b2o41$78bobo$78b2o$79bo2$56b2o$38b2o16bobo$37bobo16bo$39bo14$
28b2o$27bobo9b2o$29bo8bobo$40bo$56b2o$56bobo$56bo7$47b2o$48b2o$47bo2$
80b2o$79b2o$81bo16$115b2o$114b2o$116bo!

[I6_I6]

xs34_y28o653zgs2u065z1245d96 in 17G, down from 20G:

Code: Select all

x = 393, y = 190, rule = B3/S23
315bo$314bo$314b3o70$159bo$160bo$158b3o9$4bo$2b2o$3b2o$83b2o136bo$6bo
75bo138b2o$6bobo76bo135b2o$6b2o39bo35b2o137bo$b2o42bobo$obo43b2o$2bo2$
348bo$206bo142bo35bo$207bo139b3o34bo$205b3o176b3o$78bobo270b2o38bo$78b
2o143b3o125b2o18b2o17bo$79bo123bo29b2o135bob3o5b2o8b3o$72b2o130b2o15bo
5bo5b2o134bo5bo4bobo$73b2o128b2o16bo5bo141bob5o5b2o$72bo148bo5bo140b2o
bo11b2o$368bo2bo2b2o7bobo$202bo20b3o143b2o3bobobo5b2o$202b2o173b2o$77b
2o122bobo175b2o$77bobo151b2o146bobo$77bo153b2o147b2o$221b2o$220bo2bo$
221bobo$222bo51$116b3o$118bo$117bo21$276b3o$276bo$277bo!

Cleanup can likely be reduced.

[ElijahKen]

xs34_y28o653zgs2u065z1245d96 in 17G, down from 20G:

Code: Select all

x = 393, y = 190, rule = B3/S23
315bo$314bo$314b3o70$159bo$160bo$158b3o9$4bo$2b2o$3b2o$83b2o136bo$6bo
75bo138b2o$6bobo76bo135b2o$6b2o39bo35b2o137bo$b2o42bobo$obo43b2o$2bo2$
348bo$206bo142bo35bo$207bo139b3o34bo$205b3o176b3o$78bobo270b2o38bo$78b
2o143b3o125b2o18b2o17bo$79bo123bo29b2o135bob3o5b2o8b3o$72b2o130b2o15bo
5bo5b2o134bo5bo4bobo$73b2o128b2o16bo5bo141bob5o5b2o$72bo148bo5bo140b2o
bo11b2o$368bo2bo2b2o7bobo$202bo20b3o143b2o3bobobo5b2o$202b2o173b2o$77b
2o122bobo175b2o$77bobo151b2o146bobo$77bo153b2o147b2o$221b2o$220bo2bo$
221bobo$222bo51$116b3o$118bo$117bo21$276b3o$276bo$277bo!

Cleanup can likely be reduced.

At least reduced by 1g:

Code: Select all

x = 218, y = 192, rule = B3/S23
199bo$198bo$198b3o70$43bo$44bo$42b3o12$105bo$105b2o$105b2o$106bo6$90bo
$91bo$89b3o2$107b3o$87bo29b2o$88b2o15bo5bo5b2o$87b2o16bo5bo$105bo5bo2$
86bo20b3o$86b2o$85bobo$115b2o$115b2o$105b2o$104bo2bo$105bobo$106bo51$
3o$2bo$bo10$12b3o$14bo$13bo9$160b3o$160bo$161bo53b2o$215bobo$215bo!

[Chris857]

xs22_ci5q826zdbw23 down 1G to 99G.

Code: Select all

x = 139, y = 69, rule = B3/S23
2bo$obo$b2o6$20bo$2bo15bobo$3b2o14b2o$2b2o2$13bobo$14b2o$14bo27bobo$42b
2o$43bo18$116b2o3b2o$42bo72bo2bo2bo$41bobo2bo69b2o5bo2bo$41bob4o74bob
4o$42bo73b2o3b2o$44b5o66bo2bo5b5o$45bo2bo67b2o7bo2bo$43bo79bo$43b2o78b
2o23$6b2o128b3o$7b2o127bo$6bo130bo!

previous step

Code: Select all

x = 47, y = 38, rule = B3/S23
7$27b2o$27bo$24b2obo$25bob2o$25bobo2bo$24b2o3b2o$23bo2bo$14b2o3b2o3b2o
10bobo$15b2ob2o16b2o$14bo5bo16bo$10b2o$9bobo$11bo8b3o$20bo$21bo4b3o$13b
3o10bo$15bo11bo$14bo$23b3o$25bo$24bo!

[ElijahKen]

xs23_0j9cggzoif0254c (what was the most expensive xs23) reduced by 13g:

Code: Select all

x = 49, y = 26, rule = B3/S23
3bo$2bo$2b3o6$48bo$2bobo2bo38b2o$3b2o2bobo37b2o$3bo3b2o$39bo$38bobo$
38bobo$30b2o7bo$31b2o$8bo21bo14bo$2o4b3o28b2o4b3o$o2bobo31bo2bobo$b4ob
o31b4obo$6b3o34b3o$3bobo3bo30bobo3bo$2bob2o2b2o29bob2o2b2o$2bo36bo$b2o
35b2o!

Previous steps:

Code: Select all

x = 214, y = 18, rule = B3/S23
106bo6bo93bo$12bo54bo36b2o7bobo41bo48bo$12bobo51bo32bobo3b2o6b2o40b2o
49b3o$12b2o52b3o31b2o46bo7b2o53b2o$61bobo36bo45bobo62bobo$62b2o47b2o34b
2o10b3o49bo$11b2o4bo44bo47b2o42b2o3bo$10b2o3b2o95bo41bo5bo44b2o$12bo3b
2o89b2o46bo48bo2bo$8bo50b2o47bo47bo48b2o2bo$2o4b3o42b2o4b3o2bo36b2o4b
3o39b2o4b3o13bo31b2o4b3o$o2bobo13b2o30bo2bobo4b2o36bo2bobo42bo2bobo15b
2o31bo2bobo$b4obo6b2o3b2o32b4obo42b4obo42b4obo14bobo31b4obo$6b3o3b2o6b
o36b3o45b3o45b3o51b3o$3bobo3bo4bo39bobo3bo41bobo3bo41bobo3bo47bobo3bo
$2bob2o2b2o43bob2o2b2o6b2o32bob2o2b2o40bob2o2b2o46bob2o2b2o$2bo50bo12b
2o33bo47bo53bo$b2o49b2o14bo31b2o46b2o52b2o!

Using an induction coil edgeshooter I dug up from earlier in this thread, xs22_0ciiraa4z6aa4, xs22_wciiraa4z4aa6, and xs26_ggwciiraa4z034aa6, each in 8g, down from 20g, 12g, and 16g respectively:

Code: Select all

x = 190, y = 36, rule = B3/S23
39bo$38bo49bo$38b3o48bo$87b3o81bo$172b2o$171b2o$13bobo$14b2o18bobo75bo
bo$14bo19b2o55bobo18b2o54bobo$35bo56b2o19bo55b2o$92bo76bo17bo$187bobo$
187b2o5$4bobo148bobo$5b2o72bobo74b2o$5bo74b2o74bo$80bo$15bo150bo$16b2o
72bo76b2o$15b2o74b2o73b2o$90b2o6$9b2o149b2o$10b2o20bo51b2o75b2o20bo$2o
7bo21b2o52b2o20bo43b2o7bo21b2o$b2o28bobo41b2o7bo21b2o44b2o28bobo$o75b
2o28bobo42bo$75bo!

More are almost certainly possible.

[synperiplanar]

can we synthesize this

Code: Select all

x = 23, y = 8, rule = B3/S23
11b3o$11bo10bo$11b3o5b4o$2b3o13bo2bo$bo2bo13b3o$4o5b3o$o10bo$9b3o!

[Chris857]

can we synthesize this

Code: Select all

x = 23, y = 8, rule = B3/S23
11b3o$11bo10bo$11b3o5b4o$2b3o13bo2bo$bo2bo13b3o$4o5b3o$o10bo$9b3o!

Yes, 16G.
xs64_g88e1e8gz1230315aaa4zy33llmzy3122alk6gmiczy8343

Code: Select all

x = 275, y = 86, rule = B3/S23
131bo$129bobo$130b2o2$118bo$119b2o$118b2o60bo$178b2o$179b2o$183bo$182b
o$182b3o12$35b2o118b2o$27b2o6b2o110b2o6b2o$26bo2bo116bo2bo124bo$26bob
o117bobo116bo6b2o$27bo119bo117bo7b2o$258bo6bo$257bobo$257bobo7b3o$255b
3ob2o$254bo6bo$254bobob3o$255b2obo2b3o$260bo3bo$261b3o2$261b3o$261bo2b
o$262b3o2$262b3o$150bo110bo3bo$149bobo110b3o2bob2o$148bo2bo113b3obobo
$141b2o6b2o113bo6bo$141b2o122b2ob3o$256b3o7bobo$266bobo$260bo6bo$251b
2o7bo$252b2o6bo$251bo6$113b3o$115bo$114bo$117b2o$118b2o$117bo60b2o$177b
2o$179bo$46b2o$45b2o119b2o$2o45bo118bobo$b2o163bo$o12$9b2o$8bobo$10bo
!

[KtT]

xs27_o48c970si6z011d96 in 10G from soup:

Code: Select all

x = 143, y = 61, rule = B3/S23
135bobo$135b2o$136bo7$126bo$56bo68bo$55bo69b3o$55b3o2$53bo$51b2o$o51b
2o$b2o$2o10$31bo58bo$31bo58bo$31bo12b2o44bo12b2o$43bo2bo55bo2bo$44b2o
57b2o$88b2o$88b2o5$93b3o11$140b3o$140bo$141bo6$133b3o$133bo$134bo!