Still Life Synthesis Thread

[iNoMed]

Snake stack synthesis blueprint (snake formation, defusing the wick, and a way to easily scoop up the block-stack):

Code: Select all

x = 100, y = 95, rule = B3/S23
10bo$11b2o$10b2o3$29bo$6bobo20bobo$7b2o20b2o$obo4bo$b2o$bo40bo$41bo$
41b3o$98bo$97bo$97b3o$42bo$41bo$4bo36b3o$2bobo$3b2o8b3o3b3o4b3o$15bo$
14bo27bo$36b2o3bo38b2obo4b2o$4bo31bobo2b3o36bob2o4b2o$2bobo31bo$3b2o8b
3o3b3o4b3o51bob2o4b2o6bobo$15bo64b2obo4b2o6b2o$14bo27bo54bo$36b2o3bo
38b2obo4b2o$4bo31bobo2b3o36bob2o4b2o$2bobo31bo$3b2o8b3o3b3o4b3o51bob2o
4b2o$15bo64b2obo4b2o$14bo27bo$36b2o3bo38b2obo4b2o$4bo31bobo2b3o36bob2o
4b2o$2bobo31bo$3b2o8b3o3b3o4b3o51bob2o4b2o$15bo64b2obo4b2o$14bo27bo$
36b2o3bo38b2obo4b2o$4bo31bobo2b3o36bob2o4b2o$2bobo31bo$3b2o8b3o3b3o4b
3o51bob2o4b2o$15bo64b2obo4b2o$14bo27bo$36b2o3bo38b2obo4b2o$4bo31bobo2b
3o36bob2o4b2o$2bobo31bo$3b2o8b3o3b3o4b3o51bob2o4b2o$15bo64b2obo4b2o$
14bo27bo$36b2o3bo38b2obo4b2o$4bo31bobo2b3o36bob2o4b2o$2bobo31bo$3b2o8b
3o3b3o4b3o51bob2o4b2o$15bo64b2obo4b2o$14bo27bo$36b2o3bo38b2obo4b2o$4bo
31bobo2b3o36bob2o4b2o$2bobo31bo$3b2o8b3o3b3o4b3o51bob2o4b2o$15bo64b2ob
o4b2o$14bo27bo$36b2o3bo38b2obo4b2o$4bo31bobo2b3o36bob2o4b2o$2bobo31bo$
3b2o8b3o3b3o4b3o51bob2o4b2o$15bo64b2obo4b2o$14bo$36b2o$36bobo$36bo$13b
3o3b3o4b3o$15bo$14bo$36b2o$36bobo$36bo5$7bo$7b2o20b2o$6bobo20bobo$29bo
2$12b2o$11bobo20b2o$13bo19b2o$35bo3b3o$39bo$40bo!

[wwei47]

An independent solution for the snakes:

Code: Select all

x = 40, y = 105, rule = B3/S23
9bo$7bobo11bobo$8b2o12b2o$22bo2$obo32bobo$b2o32b2o$bo34bo3$13b2o10bo
13bo$14b2o2bo5bobo10b2o$2bobo8bo4bo6bo12b2o$3b2o13bo$3bo2$13b2o24bo$
14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$
13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o
$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$
3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13b
o6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o
$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo
6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bo
bo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo
11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b
2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o
24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bo
bo$13b2o$14b2o2bo6bo$2bobo8bo4bo6bo$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b
2o$14b2o2bo6bo$13bo4bo6bo$18bo6bo7bo$32b2o$32bobo15$26b3o$26bo$27bo!

EDIT: Better cleanup:

Code: Select all

x = 40, y = 103, rule = B3/S23
9bo$7bobo11bobo$8b2o12b2o$22bo2$obo32bobo$b2o32b2o$bo34bo3$13b2o10bo13b
o$14b2o2bo5bobo10b2o$2bobo8bo4bo6bo12b2o$3b2o13bo$3bo2$13b2o24bo$14b2o
2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24b
o$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo
$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b
2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7b
o$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o
13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b
2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o$2bobo8bo
4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2bo6bo11b2o
$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24bo$14b2o2b
o6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o24b
o$14b2o2bo6bo11b2o$2bobo8bo4bo6bo12b2o$3b2o13bo6bo7bo$3bo28b2o$32bobo
$13b2o$14b2o2bo6bo$2bobo8bo4bo6bo$3b2o13bo6bo7bo$3bo28b2o$32bobo$13b2o
$14b2o2bo6bo$13bo4bo6bo$18bo6bo7bo$32b2o$32bobo13$23b2o$23bobo$23bo!

[dvgrn]

EDIT: Better cleanup...

No need to worry about cleaning up the blocks just one or a few at a time! With our new Living Dangerously Fuse (TM) product, just light one end of the blocks and let them burn, and hope you don't fumble any gliders and let the reaction get out of control.

Code: Select all

x = 136, y = 36, rule = B3/S23
5b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2o
b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2o$5bo3bo
bo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bo
bo3bobo3bobo3bobo3bobo3bobo3bobo3bo$6bobo3bobo3bobo3bobo3bobo3bobo3bob
o3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bob
o3bobo$5b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2o5$5b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2o$
5b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2o
b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2o7$13b2o
$2o12b2o$b2o10bo12bo$o25b2o$25bobo$38b2o$39b2o$38bo12bo$51b2o$50bobo$
63b2o$64b2o$63bo12bo$76b2o$75bobo$88b2o$89b2o$88bo12bo$101b2o$100bobo!

(Posted to Discord yesterday, but without the gratuitous advertising. Cleans up five blocks per glider in the limit instead of just three.)

[iNoMed]

Cheaper repeating "core" for the snake-track that eliminates the block-track cleanup entirely:

Code: Select all

x = 83, y = 51, rule = B3/S23
75bo$74bo$74b3o$23bo$22bo$22b3o2$78bo$78bobo$20bo5bo5bo5bo5bo5bo5bo5bo
5bo9b2o$19bo5bo5bo5bo5bo5bo5bo5bo5bo$19b3o3b3o3b3o3b3o3b3o3b3o3b3o3b3o
3b3o2$bo79bo$2b2o75b2o$b2o77b2o5$13bo5bo5bo5bo5bo5bo5bo5bo5bo5bo$11bob
o3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo3bobo$12b2o4b2o4b2o4b2o4b2o4b
2o4b2o4b2o4b2o4b2o4$13bo5bo5bo5bo5bo5bo5bo5bo5bo5bo$13bo5bo5bo5bo5bo5b
o5bo5bo5bo5bo$13bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5$13bo5bo5bo5bo5bo5bo5bo
5bo5bo5bo$13bo5bo5bo5bo5bo5bo5bo5bo5bo5bo$3o10bo5bo5bo5bo5bo5bo5bo5bo
5bo5bo$2bo78bo$bo78b2o$80bobo5$8b3o3b3o3b3o3b3o3b3o3b3o3b3o3b3o3b3o3b
3o$10bo5bo5bo5bo5bo5bo5bo5bo5bo5bo$9bo5bo5bo5bo5bo5bo5bo5bo5bo5bo2$79b
2o$8b2o18b3o3b3o3b3o3b3o3b3o3b3o3b3o3b3o5b2o$9b2o17bo5bo5bo5bo5bo5bo5b
o5bo9bo$8bo20bo5bo5bo5bo5bo5bo5bo5bo!

maybe there's some synthesis for a 6c/12o blinker puffer that allows a fixed-cost blinker-track construction?

Edit: Here's a demonstration of a suitable 6c/12o puffer that should allow fixed-cost construction for one of the two tracks (not sure how the other track would be built):

Code: Select all

x = 99, y = 44, rule = B3/S23
97bo$96bo$96b3o25$bo2bo$5bo$bo3bo$2b4o6b2o$11b4o$11b2ob2o$o12b2o$o5bob
o$5bo2b2o$o5bobo$o12b2o$11b2ob2o$11b4o$2b4o6b2o$bo3bo$5bo$bo2bo!

[dvgrn]

maybe there's some synthesis for a 6c/12o blinker puffer that allows a fixed-cost blinker-track construction?

Edit: Here's a demonstration of a suitable 6c/12o puffer that should allow fixed-cost construction for one of the two tracks (not sure how the other track would be built)...

Heh, if you want fixed-cost construction for these Enough Snakes In A Pile To Make Indiana Jones Very Unhappy... without resorting to RCT hand-waving ... you won't get it with blinker puffers, because the activation gliders won't be fixed cost anyway.

Instead you might have to put together a recipe for a universal constructor that will cycle N times. On each cycle it will add one unit to the blinker trails, and one unit to a one-time spitter/shotgun structure that produces each of the four sets of perfectly aligned gliders. A faraway glider shuts down the UC and triggers a self-destruct, while other gliders/the same glider trigger the shotgun seeds.

EDIT: That's probably a silly design, though. Is there a known way to add a snake to a pile of snakes -- any cost? If so, then there's a fixed-cost recipe for building any Pile O' Snakes by building a glider-constructible snakestacker made out of slide guns, then shooting it all down when the snakestack reaches the right size.

[mniemiec]

EDIT: That's probably a silly design, though. Is there a known way to add a snake to a pile of snakes -- any cost? If so, then there's a fixed-cost recipe for building any Pile O' Snakes by building a glider-constructible snakestacker made out of slide guns, then shooting it all down when the snakestack reaches the right size.

The stack of 2 snakes is easy, and can be made from 5 gliders.

The stack of 3 snakes used to be unexpectedly difficult; Extrementhusiast found a Rube-Goldberg synthesis of it that required 69 gliders - now replaced by a 31-glider synthesis based on the new snake stack technology (29 to make 4 snakes, and 2 more to remove one of them).

No way was previously known to make stacks of 4 or more snakes. In particular, there was no converter known to just add an additional snake to such a stack (although it has long been known how to add an additional snake offset by one row, without mirroring).

EDIT: That's probably a silly design, though. Is there a known way to add a snake to a pile of snakes -- any cost? If so, then there's a fixed-cost recipe for building any Pile O' Snakes by building a glider-constructible snakestacker made out of slide guns, then shooting it all down when the snakestack reaches the right size.

EDIT: Unfortunately, not at this time. You would need to use some kind of constructor technology to incrementally build 2 "constructor arms" that simultaneously release arbitrarily-long waves of gliders. E.g. make a puffer that builds an array of self-destroying one-shot glider generators, that can be triggered (and destroyed by a single glider that is then released when the arms are in place. Interesting as a proof of concept, but given how likely it is to actually need such a snake stack, this is not likely to see any actual practical use.

[wwei47]

No way was previously known to make stacks of 4 or more snakes. In particular, there was no converter known to just add an additional snake to such a stack (although it has long been known how to add an additional snake offset by one row, without mirroring).

I disagree. See this old result from myself and apgoucher found September last year.

Code: Select all

x = 39, y = 47, rule = B3/S23
2bobo$5bo$5bo$2bo2bo$3b3o12bo$16b2o$17b2o4$25bo$25bobo$25b2o2$9b2o$9b
2o2$7b4o$7bo3bo3b2ob2o$10bobo2b2ob2o$10b2o$4b2o$4bo$5bo$4b2o$9b2obob2o
$8bo2b2ob2o$4b2obobo$4b2ob2o$11b2o$11b2o3$12b2ob2o$12b2ob2o$bo19b2o$b
2o15bo3bo$obo14bobo2bobo11b2o$16bobo4b2o11bobo$17bo18bo4$29b2o$23b2o4b
obo$23bobo3bo$23bo!

EDIT: I really hope I didn't forget to post this to the forums earlier.

[dvgrn]

See this old result from myself and apgoucher found September last year.
... EDIT: I really hope I didn't forget to post this to the forums earlier.

Very nice! It seems a little strange that this is true, but for large enough snakestacks, a construction based on temporary slide guns will be cheaper than iNoMed's recent discovery.

[Ian07]

EDIT: I really hope I didn't forget to post this to the forums earlier.

You didn't forget: viewtopic.php?p=135883#p135883

[mniemiec]

I disagree. See this old result from myself and apgoucher found September last year. ...
EDIT: I really hope I didn't forget to post this to the forums earlier.

Oh wow! Very nice. I must have missed that (although in fairness, it is a fairly recent discovery). I figured that there might be some way of doing this, but I had never seen anyone get anything close before. (I had worked on the problem a bit in the past, with no useful results).

[May13]

10G synthesis of xs15_03iaczmq1 :

Code: Select all

x = 63, y = 57, rule = B3/S23
o$b2o$2o5$19bobo$20b2o5bo$20bo6bobo$27b2o5$28bo$21b2o4bo$21b2o4b3o2$
32bo$31b2o$31bobo6bo$39bo$39b3o6$43b3o$43bo$44bo23$61b2o$60b2o$62bo!

Is this component known? It looks familiar, but is not in Catagolue (component leads to xs15 canoe and snake in 9G and xs22 canoe in 13G):

Code: Select all

x = 157, y = 32, rule = B3/S23
154bobo$154b2o$155bo5$144bo$142bobo8bo$15b2o126b2o6b2o$16bo53b2o80b2o$
15bo53bobo$14bo53bo$13bo53bo73bo$8bo5b3o45bo5b3o69bobo$9bo6bo46bo6bo
68bo2bo$7b3o51b3o74bo3b2o$133bo5b3o$134bo6bo$132b3o2$153b2o$152b2o$9bo
53bo90bo$9b2o11bo40b2o11bo$8bobo10b2o39bobo10b2o$2o19bobo30b2o19bobo
56bo$b2o52b2o77b2o11bo$o53bo78bobo10b2o$125b2o19bobo$126b2o$125bo!

There are 80 expensive (11G) 15-bit still lifes left before reaching 15-in-10.
Edit: predecessor of xs15_358ge12ko from soup by Charity Engine (third in C1 section):

Code: Select all

x = 12, y = 19, rule = B3/S23
6b4o$5bo4b2o$4bo$5bo5bo$6bo$7bobo$8bo$5bo$4bobo$5bo7$2o$b2o$o!

Edit 2: 10G synthesis of xs15_03p68oz6221:

Code: Select all

x = 271, y = 65, rule = B3/S23
218bobo$218b2o$219bo16$268b2o$267bobo$267bo$265b2obo$265bo2bo$173bo93b
o$172bobo93b3o$172bobo95bo$173bo3$184bo$183bo$183b3o2$116bo60bo$115bob
o59bo87bo$115bobo59bo87bo$16bo99bo67b2o79bo$15bo157b3o3b3o2b2o$15b3o
45bo203b3o$62bobo$62bobo$63bo197bo$261b2o$120bo139bobo$120bo52b3o3b3o$
120bo$127b2o48bo$116b3o3b3o2b2o48bo$177bo$bo169b3o$2b2o$b2o61bobo7b2o$
65b2o7b2o$65bo$b2o113b3o3b3o$obo$2bo117bo$108bo11bo$65bo43bo10bo$65b2o
40b3o$64bobo2$110b2o$109bobo$111bo!

Edit 3: 9G synthesis of xs15_069jzkq221:

Code: Select all

x = 259, y = 87, rule = B3/S23
257bo$256bo$256b3o6$250b2o3b2o$250b2o2bo2bo$255b2o2$87b2o$86bo2bo$87b
2o5$74bo$74b2o14b2o$73bobo14b2o71b2o81b2o$bo161b2o11b2o69bo$2bo74b3o
77b2o16bo2bo67bo$3o3bo70bo79b2o17b2o69b3o$7b2o69bo171bo$6b2o241bo$248b
o$3b2o242bo$2bobo242bobo$4bo174b2o5b2o60b2o$157bo21b2o5bobo$157bo28bo$
157bo$63bo$63b2o$62bobo48$124b2o$123bobo$125bo!

[May13]

Solved 8 more 15-bit still lifes (10G or less):

Code: Select all

x = 393, y = 512, rule = B3/S23
39bo37bo$37bobo36bo$38b2o36b3o4$42bo$37bo5bo$35bobo3b3o$36b2o3$241bo$
239b2o48b2o58b2o$240b2o47b2o58b2o$244b2o51b3o57b3o$42bo201bobo$43b2o
34bo164bo50bo5bo53bo5bo$42b2o34bo216bo5bo53bo5bo$78b3o214bo5bo53bo5bo
2$297b3o57b3o$243b3o$245bo$244bo4$352bo$352b2o$351bobo$359b3o$359bo$
360bo6$72b2o279b2o$72bobo277bo2bo$72bo280b2o$296b2o$296bobo$76b2o218bo
$76bobo210b2o$76bo211bobo$43bo246bo$43b2o$42bobo4$86b2o$85b2o$87bo82$
390bobo$390b2o$391bo2$359bobo$43bo316b2o$43bobo314bo$43b2o$65bo$65bobo
$65b2o$36bo105bo$34b2o106b3o$35b2o108bo$141bob2o$141b2obobo$36b2o107bo
bo$35b2o109bo5bo$37bo114bo$140b2o10bo$140b2o3$374bo$44bo112b2o215bobo$
43b2o112bobo214b2o$43bobo88b2o21bo211bo$133bobo231bobo$135bo232b2o3$
290bo$50b2o237bo$50bobo236b3o87bo$50bo329bo$43b2o329bo3b3o$42bobo330bo
$44bo315bo12b3o$359bobo$292bo66bobo16b2o$291b2o67bo17bobo$291bobo84bo
2$365b2o$364bo2bo$365b2o82$344bo$344bobo$344b2o$339bo$337bobo$338b2o$
349bo$347b2o$348b2o10$156bo$157bo32bo$155b3o30b2o$184bo4b2o$183bo$183b
3o2$156bobo196b2o$157b2o196bobo$157bo135bobo51b2o6bo$293b2o52bobo$294b
o52bo3$19bo$19bobo$19b2o261bobo50b2o$282b2o50bo2bo$283bo3b2o45bobo$
286b2o47bo$288bo2$329b3o2$15b3o74b2o$15bo72b2o2b2o89b2o$16bo71b2o89b2o
2b2o$179b2o4$71bobo$72b2o94b3o$72bo$179b3o$179bo$180bo2$82b2o$81b2o$
83bo10$384b3o$384bo$385bo111$306bo$307bo$305b3o3$5bobo$6b2o$o5bo$b2o$
2o2$333bo$333bobo$333b2o$316bo21bo$317b2o17b2o$97bo218b2o19b2o$96bobo$
bo93bo2bo76bo$2bo91bob2o76bobo$3o85b2o3bo2bo76bo2bo$88b2o3b2o3bo4b3o
66bob2o$97b2o72bo2bo141bo$2o91b2o76b2o3bo138bo$b2o90b2o80b2o138b3o$o
170b2o$82b3o25b3o58b2o$2b2o80bo25bo$2bobo78bo27bo$2bo312bo$175b3o136bo
$175bo138b3o$176bo3$25bo$24b2o6b2o278b2o$24bobo4b2o279bobo$33bo278bo3$
323bo$322b2o$322bobo21$286b3o$288bo$287bo!

70 still lifes left.
Edit: 69

Code: Select all

x = 287, y = 63, rule = B3/S23
252bobo$253b2o$253bo3$126bo$127bo140bobo$125b3o140b2obo$260b2o4b2o3bo$
259bo2bo2bo3b2o$259bobo4b3o$139bo17bo102bo7bo$122b3o13bo17bobo$3bo120b
o13b3o14bo2bo$2bo120bo32b2o$2b3o2$2o156b2o$b2o2bo130b2o19bo2bo115b2o$o
3b2o129bobo19bobo116b2o$4bobo130bo20bo5$285bo$284b2o$284bobo33$83bo$
83b2o$82bobo!

Edit 2 (06.03.2022): another xs15 in 10G:

Code: Select all

x = 351, y = 30, rule = B3/S23
159b2o84bo$159b2o83bobo$14bo229bo2bo84bo$15bo225b2obo3bo82bobo$13b3o
76b2o147bobo5bo81bo2bo$92b2o156bo77b2obo3bo$249b2o4bo72bobo5bo$254bobo
80bo$13b2o239bo2bo78b2o4bo$14b2o143bo95b2o84bobo$13bo144bobo180bo2bo$
159bo182b2o2$92bo$91bobo$92bo67b2o186b3o$160b2o186bo$349bo2$166bo$93b
2o70bo$88bobo2bobo60b2o7b3o$89b2o2bo61bobo92b2o$89bo66bo93b2o3$2o85b3o
155b3o$b2o86bo79bo77bo$o87bo79b2o76bo$168bobo!

[GUYTU6J]

Is it possible to complete the following xs18_358mikozx66 synthesis? It emerges from a couple of soups in this manner, but I do not seem to get any result with spark-search.py:

Code: Select all

x = 67, y = 16, rule = LifeHistory
5.A$4.A.A18.C$6.2A16.2C.3C$27.3C$7.A16.C3.2C30.5B$7.A17.C2.C31.2BA3B$
7.A18.3C31.2BA4B$6.2A52.3B2A2B$2.A3.2A14.A37.2BABA2B$2A.A16.2A.A35.3B
2A3B$2A.A16.2A.A35.BA6B$.2A.2A15.2A.2A33.A7B$3.A2.A16.A2.A33.2AB2A2B$
3.3A17.3A36.AB2AB$4.2A18.2A36.A2BAB$63.A3B!

[dvgrn]

Is it possible to complete the following xs18_358mikozx66 synthesis? It emerges from a couple of soups in this manner, but I do not seem to get any result with spark-search.py...

I didn't have any better luck than you did with spark_search, and didn't try popseq. But is the purpose of this just to get the cost down under one glider per bit? One of the two G1 soups was hiding this reaction, which could probably be completed at a total cost of around 15G:

Code: Select all

x = 38, y = 29, rule = B3/S23
o24b2o$b2o22b2o$2o2$17b2o$17b2o$25bo4bo$24bo4bo$24b3o2b3o$36b2o$35bobo
$35b2o3$20b3o$20bo$21bo$18bo$17bobo$18b2o12b3o$32bo$33bo5$21bo$20b2o$
20bobo!

Looks like there's a later stage in this that amounts to honeyfarm plus pre-beehive plus B-heptomino plus (beehive plus pre-loaf spark), or some other possible assembly options, which might be a bit cheaper.

[dani]

Is it possible to complete the following xs18_358mikozx66 synthesis? It emerges from a couple of soups in this manner, but I do not seem to get any result with spark-search.py:

The left one looks like it might yield some results. Here's a way to stabilize it in 2G (1 untimed), so the only problem would be synthesizing that weird object:

Code: Select all

x = 16, y = 25, rule = B3/S23
13bobo$13b2o$14bo7$5bo$4bobo$6b2o2$7bo$7bo$7bo$6b2o$2bo3b2o$2obo$2obo$
b2ob2o$3bo2bo$3b3o8b2o$4b2o7b2o$15bo!

[GUYTU6J]

Remark: at the time of writing the only two 14-bit SLs that cost 10G are xs14_3lozx3lo and xs14_dbgzw1qm, and all other ones can be constructed with at most 9G.
Daily reduction practice, continued in another thread...
xs18_0mkkm96z641, xs18_0kc0cp3z64311, xs18_08u1qcz32x113 and xs18_0ggc9jzpi611

Code: Select all

x = 511, y = 48, rule = B3/S23
71b2o4bo$70bobo3bobo$14bobo55bo3bobo89bo82bo15bo160bobo$5bobo6b2o61bo
90bobo79bo16bobo153bo4b2o$6b2o7bo152b2o80b3o14b2o121bo31bo6bo74bo$2o4b
o138bo245b2o6bo22b3o78bo$b2o78bo61bobo85bo158b2o5bobo103b3o$o12b3o64bo
bo2bo58b2o86bo165b2o$6bo6bo66bob4o144b3o$6b2o6bo66bo$5bobo64b2o4bo3b4o
153bo198bobo59bo$71bobo3bobo4bo59bo95bo170bo26b2o60bo$17b3o53bo3bobo6b
o58bo8bo83b3o171b2o25bo60bo$10b2o5bo60bo6b2o56b3o6bobo176bo79b2o$10b2o
6bo134b2o175bobo$330bo2bo$329b2ob2o$257bo72bobo$256bo71bo4b3o$256b3o
69b2o5bo2$500b2o$500bo$415bo86bo$153bo170b2o88bobo84b2o$153b2o169b2o
89bobo82bo2b2o$152bobo8b2o71bo95b2o82bo84b2o2bo$163bobo69bobo94b2o169b
2o$163bo71bobo81b3o181bo$236bo84bo183bo$320bo6b3o174b2o$238b2o89bo$
238bobo87bo$140b3o95bo270bo$142bo32b2o80bo250bo$141bo33bobo78b2o250b3o
$175bo80bobo160b2o$161b3o228bo25b2o$163bo228b2o26bo$162bo228bobo111bo$
505bo$505bo$432b2o$432bobo5b2o$144b2o261b3o22bo6b2o$143bobo256bo6bo31b
o$145bo256b2o4bo$401bobo!

The second one is an index fossil with the following reactions:

Code: Select all

x = 83, y = 16, rule = B3/S23
79bo$79b2o$79bobo$79bobo$2b3o74b2obo$2b2ob2o70bo2b2o$2b2o3bo69b2o3bo$
7bo69b2o$7bo$b2obo$3o$o3bo2bo4$71b3o!

The last 17G synthesis used spark-search-python3.py to inject the spark from above&below, but to my surprise none of the results is clean. I think there should be some known 3G component for the carrier-like motif...right?
Speaking of spark-search.py, I made another experiment and it suddenly reduced xs18_3p6kicz643, one of the most expensive 18-bit SLs, by 5G:

Code: Select all

x = 92, y = 39, rule = B3/S23
14b2o$14b3o$14b3o$13bob2o$13b3o64bobo$14bo6bo58b2o$21bobo50bobo4bo$21b
2o52b2o$75bo2$19bo9bo49bo$19bobo5bo3bo47bobo$19b2o5bo52b2o$26bo4bo$26b
5o2$24bo59bo$23bo59bo$15bo7b3o49bo7b3o$14bobo57bobo$7b2o5bobo50b2o5bob
o$7bo2b2o3bo51bo2b2o3bo$8b2o2bo55b2o2bo$9bobobo55bobobo$8bo2bobo54bo2b
obo$8b2o2bo55b2o2bo2$21bo59bo$20b2o58b2o$20bobo57bobo2$b2o58b2o$obo4b
2o21bo29bobo4b2o21bo$2bo5b2o19b2o31bo5b2o19b2o$7bo21bobo35bo21bobo2$
13b2o4bo53b2o4bo$13bobo2b2o53bobo2b2o$13bo4bobo52bo4bobo!

Well, it needs a bit more work to get the cost down below 1 glider per bit... but the last demonstration is still impressive anyway.
xs18_8k4ria4z643:

Code: Select all

x = 145, y = 37, rule = B3/S23
60bo$61bo$59b3o3$137bo$138bo$54bo81b3o$55b2o7bo$54b2o7b2o$63bobo64bo
10b3o$131bo$129b3o4$135b2o$60b3o72b2o$60bo79bo2b2o$61bo77bobo2bo$6b2o
48b2o61bo19bo2b2o$bo3bo2bo42bo3bo2bo61bo16b2ob2o$bo4bobo42bo4bobo59b3o
17bo2bo$bo5bo43bo5bo80bobo$139bo$3b3o47b3o68b2o$123bo2bo$124b2o2$53b2o
$53b2o$b2o$obo$2bo$7b2o$7bobo$7bo!

EDIT on March 11, morning: it looks like we still have a lot to explore in the 8G space... xs18_j2araicz11 from a C1 soup:

Code: Select all

x = 99, y = 28, rule = B3/S23
8bo$9b2o$8b2o6$19bo$18bobo$18bobo$19bo$93bo$94bo$92b3o3$97b2o$97b2o$
17b2o$17bobo$17bo68bo2bo$30b2o54b6o$b2o26b2o61bo$obo28bo56b3obo$2bo8b
2o73bo2bobo$12b2o72b2o$11bo!

A useless discovery related to xs18_0g4qijz343w23
At night: xs18_32qbap56, xs18_0h7o4cz345d, xs18_0ciab4koz321

Code: Select all

x = 413, y = 45, rule = B3/S23
395bobo$392bo3b2o$390bobo3bo15bo$152bo162b2o74b2o17b2o$151bo164bo94b2o
$151b3o162bob2o$163bo153bobo$79bo82bo152bobo$7b2o58b2o9bo68b2o13b3o
149bob2o81bo$7b2o58b2o9b3o66b2o90bo74bo83bo$239bobo73b3o80b3o$73bo84b
2o79b2o76bo$72bo85b2o64bobo$72b3o150b2o$3o57b3o162bo$243b2o$74b3o166b
2o$74bo224b2o18bo$75bo71b2o150b2o17bobo$147bobo168bobo77b2o$145b2o2bo
169bo77b2o$146bobo72b2o80b3o93bo$146bob2o70bobo20b3o57bo101bo$64bo80b
2obo73bo20bo60bo17b3o79b2o$64bo83bo95bo77bo81bobo$64bo83b2o80bo92bo$
230b2o$229bobo$7b3o211bo$7bo213b2o$3b2o3bo211bobo$2bobo$4bo$402b2o$
402bobo$402bo3$377b3o$86b2o291bo$86bobo289bo$86bo$403b3o$403bo$404bo!

I am increasingly dependent on spark-search.py... xs18_oid9icz6221, xs18_ggc2pmz6943, xs18_69n8bdzw23, xs18_3pabaa4zw23

Code: Select all

x = 644, y = 63, rule = B3/S23
28bobo63b2o173bo71bo211bo$28b2o64b2o171b2o72bobo207bobo$29bo238b2o71b
2o209b2o2$98b3o$98bo450bo$5bo93bo238bo211bo$6b2o9bo3bobo314bobo207b3o
19bo$5b2o8bobo3b2o315b2o229bo$16b2o4bo546b3o2$32bo$30b2o143b2o78b2o$
31b2o52bo89bobo77bobo$85b3o88b2o78b2o$88bo89b2o78b2o$85b2o2bo81b2o5bob
o70b2o5bobo65bo$85bob2obo80bobo5b2o70bobo5b2o65bo$87bo2bo81b2o78b2o10b
2o60bo$86bo2bo84b2o78b2o7b2o$87b2o85bobo77bobo8bo$175b2o78b2o82b2o$
338b2o70b2ob2o$160bo179bo70bobobo$161b2o247bo2bobo$90b2o68b2o83b2o89b
2o72b3obo218bo3b2o$90b2o144bo8bobo87bobo75bo220bo2bobo$165bo71b2o7b2o
88bo75bo68bo150b3o3bo$2o164bo69b2o10b2o162b2o68bo$b2o91b3o67b3o74b2o5b
obo229b3o79bo$o93bo146bobo5b2o168bo73bo69bo9bo$95bo146b2o174bo74bo67b
3o3bo5bo$164bo79b2o172b3o72bo72bobo4bo$163b2o79bobo319bobo73b2o$163bob
o79b2o167b2o151bo71b2o2bo$30b3o380bo2bo66b3o151bo2bobo$30bo383b2o69bo
5b2o78b2o64b2obob2o$31bo452bo6b2o78b2o67bobo$640bobo$641bo5$232b2o$
233b2o$232bo2$321bo$321b2o$320bobo$342b3o$342bo$343bo7$349b2o$348b2o$
350bo!

EDIT on March 12, morning: how about 16-in-12? xs16_3iacga6z121, xs16_c88m952z065, xs16_0c88m96z6421 can be done in at most 10G:

Code: Select all

x = 348, y = 32, rule = B3/S23
186b2o$13bo63bo109bo56bo100bo$13bobo60bobo107bo58b2o98bobo$13b2o61bobo
8bo97bo58b2o99b2o$6bo70bo7b2o97bob3o$4bobo79b2o95bobo2bo$5b2o6bo168bo
2bo$13bobo73bo93b2o$13b2o73b2o87bo$82bo5bobo87bo63bo$81bo94b3o62bobo$
3bo66b2o9b3o156bo2bo78bo9bo$4bo65b2o6bo162b2o80b2o6bobo$2b3o72bo103b2o
139b2o6bo2bo$77b3o101b2o135b2o11b2o6b3o$10b2o61b2o166bo77b2o$2o8b2o60b
obo165bobo75bo18bo5bo$b2o71bo165bo2bo87bo4bobo3bobo$o240b2o87bobo3bobo
3bobo$4b3o323bo2bo3bo5bo$4bo326b2o$5bo255b2o76b2o$243b2o15b2o77b2o$
244b2o16bo$243bo5$111bo$110b2o$110bobo!

A component that attaches cis-hook with tail motif to a beehive, like the last one:

Code: Select all

x = 128, y = 45, rule = B3/S23
37bobo$22b2o13b2o73b2o$21bo2bo13bo72bo2bo$22b2o88b2obo5b2o$114bobo4b2o
$114bo2bo$113b2o3bo$22b2o93b2o6b3o$22b2o101bo$126bo$35bo$33b2o$34b2o5$
38b3o$38bo$39bo$110bo$110bo$28bo81bo$28bobo$28b2o$24b2o86b3o$23b2o87bo
$25bo87bo2$2o$b2o$o11$48bo$47b2o$47bobo!

Evening: 14G xs18_2ld2koz34a4 and 17G xs18_696kiaczx65 from their only C1 soups, and finishing dvgrn's suggestion above at 15G:

Code: Select all

x = 858, y = 85, rule = B3/S23
bo$2bo$3o14$60bobo$60b2o$61bo11$210bo$211bo129bo333bo$209b3o129bobo
331bobo$51bo289b2o332b2o$50bo284bo334bo$50b3o7b2o271bobo332bobo77bo$
59b2o154b3o116b2o86b2o245b2o78b2o$61bo359bobo3b2o89bo229b2o11b2o$45bo
377bo2bo2bo87bobob2o213bobo22b2o$45bobo379b2o88bob2o2bo213b2o$45b2o
471bo3b2o213bo$40b3o227bo79bo89bo79b2o232bo$40bo229bo4bo74bo4bo84bo4bo
75bo233bo$41bo228bo3bobo73bo3bobo83bo3bobo9bo63bo232b3o$70bo203bo2bo
76bo2bo86bo2bo8bobo61b2o$68b2o205b2o78b2o88b2o9b2o384bo13b2o$69b2o124b
2o394bo3b2o85b2o69b3o16b2o67bobo11bobo$194bo2bo320b2o71bo2b2o85bobo71b
o15bobo68bo11bo$195b2obo319b2o71bo4bo84b2o71bo16b2o77b2obob2o$196bo2bo
162b2o88b2o126b2o88b2o88b2o88b2obo2bo$195bo2b2o161bo2bo86bo2bo125b2o
78bo9b2o88b2o78b3o10bobo$39bo154bo146bo20b2o88b2o60b2o13bo128bobo181bo
10b2o$38bobo153bobo83bobo56bobo171bobo12bobo128b2o180bo$38bo2bo153bobo
77b2o3b2o58b2o173bo13b2o$39b2o155bo77bobo4bo81b2o61b2o9bo15b2o299bo$
276bo85bo2bo59bo2bo7bobo13bo2bo66b2o229bobo$207b2o154b2o61b2o8bo2bo13b
2o67b2o230b2o89b2o$207b2o62b3o59b2o102b2o231bo173bo2bo$273bo58bobo198b
2o134b2o173bobo$272bo61bo198bobo133bobo173bo$211b3o126b2o8b3o180bo$
211bo128bobo7bo$212bo127bo10bo$756b2o84b3o$66b2o687b2o87bo$65b2o690bo
85bo$67bo9$64b2o$63b2o$65bo6$95b2o$95bobo$95bo!

Today's last batch: xs18_178n9aczx23, xs18_178cik8z0c93 (index fossil again, and the key region hitting damaged pre-honeyfarm has defeated spark-search.py), xs18_0j96o8zc9521, xs18_0gjp642sgz32

Code: Select all

x = 655, y = 72, rule = B3/S23
653bo$652bo$652b3o$646b2o$645bo2bo$646b2o2$2b3o67b3o67b3o135bo17bo112b
o168b3o$281b2o2bo12bobo108b2o164b2o$o69bo69bo139b2o4b2o10b2o110b2o162b
o2bo$o69bo69bo144b2o288b2o$o8bo60bo69bo72b2ob2o$9bobo65bo69bo66bobobo
428b2o$9b2o65bobo67bobo65bobo2bo426bobo$76bo2bo66bo2bo65bob3o422b2o2bo
$77b2o68b2o67bo425bo2b2o$217bo84bo340b2o$216b2o74bo8bo342bo$293b2o6b3o
73bo265bo$15b2o202b2o71b2o83bobo108bo155b3o5bo$14b2o203b2o76bo9b2o68b
2o108bo81bo76bo4bo$8b3o5bo280b2o8bobo177b3o79b2o80b3o$3b2o3bo64b2o68b
2o7b2o142bobo9b2o258bobo$2bo2bo3bo62bo2bo66bo2bo5bo2bo$3b2o68b2o68b2o
7b2o2b3o325bo76b2o21bo61b2o$81bo74bo58bo160bo106bobo74bobo20b2o61b2o$
81b2o74bo56bobo3b3o3b3o145bobo105bo2bo76bo12b3o5bobo$80bobo2b2o127bobo
3bo5bo148b2o4bo101b2o90bo$85bobo64b2o61bo5bo5bo151b2o195bo$85bo65bo2bo
225b2o$151bobo329b2o$152bo330bo2b2o2b2o$484bobobo2bo$485bo3b2o87b2o$
486b3o89bobo$488bo89bo3$82bo$82b2o392bo$81bobo292bo99bo10b2o4b3o$375bo
bo98bo10b2o$375bobo113bo$376bo114bo$491bo$367b3o109b3o$479bo$480bo14b
3o$495bo$496bo13$360b3o$362bo$361bo5$410b2o$409b2o$411bo!

EDIT on March 13, morning: xs16_03loz25aic, xs16_c8idiczw56, xs16_0oe12koz643, xs16_069q453z311

Code: Select all

x = 486, y = 45, rule = B3/S23
484bo$483bo$483b3o3$183bo$181b2o$182b2o$2bobo130bo105bo$3b2o128bobo
104bo$3bo130b2o41bo62b3o215bo$176bo276bo2bobo$176b3o143bo128bobo3b2o$
9bo232bo77bobo129b2o$2bo6bobo229bobo77b2o$obo6b2o230bobo$b2o239bo72bo$
316bo$314b3o$247b2o74b2o$246bo2bo72b2o$74bo164bo7b2o65bo9bo53bo$11bo
61bobo162bobo72b2o62bobo$9b2o62bo2bo159bo2bobo71bobo61bo2bo$10b2o62b2o
bo105b3o50b2obobo134b2o3bo$3b2o71bo106bo54bobo60b2o15bo57bo3b2o$3bobo
68b2o108bo53bo61bobo14b2o58bo61bo$4bo69bo164bo61bo15bobo55bobo62b2o$
68b2o5bo162b2o71bo63b2o5b3o54b2o19bo10bo$bo65bo2bo5bo233b2o148bo9b2o$b
o66b2o5b2o233bobo147bo9bobo$bo152b2o231b3o$153bobo150bo80bo$62b3o90bo
150b2o80bo72b2o$64bo12bo103b2o122bobo135bo17b2o$63bo13bo102b2o262bo$bo
75bo104bo259b3o$b2o$obo168bo$73b3o94b2o270b2o$75bo94bobo270b2o$74bo
367bo$152bo$152b2o$151bobo!

EDIT on March 14, evening: xs16_08o6413zrm, xs16_08obap3z32 and xs16_08u15acz65 all from 13G to 9G:

Code: Select all

x = 405, y = 40, rule = B3/S23
12bo$10bobo$11b2o$18bo65b2o$17bo66b2o$17b3o2$2o68b2o13b2o67bobo154bo$
2o68b2o13b2o68b2o155bo$5bo69bo79bo17bo136b3o$4bobo67bobo94b2o$3bo2bo
66bo2bo95b2o$4b2o68b2o3b2o$78b2o$80bo73bobo171bo$84bo70b2o171bobo$83b
2o70bo172b2o$83bobo231b2o69bo$247bo68bo2bo69bo3bo3b2o$80bo156bob2o5bo
70bobo67b3o2bobo2bobobo$80b2o155b2obo5b3o69bo74bo6b4o$79bobo7bo314bo$
88b2o145b5o81b2o79bobo$88bobo145bo2bo2b2o73b2ob2o79bobo$234bo7b2o73b2o
3bo78b2o$234b2o$255bo$254bo$254b3o$328b2o$328bobo$249b3o60b2o14bo$313b
2o$151bo21bo138bo$151b2o20b2o6bobo$150bobo19bobo6b2o$182bo$177b2o$176b
2o$178bo!

EDIT on March 16, evening: 10G xs16_31ke1e8z032, 10G xs16_2lm853z056, 11G xs16_35iczw11db and two related 12G xs16_32qkz5b8o constructions

Code: Select all

x = 754, y = 70, rule = B3/S23
51bo128bo168bo317bo$50bo130b2o165bo319b2o$50b3o127b2o166b3o316b2o$589b
o$18bo345bo222b2o$18bobo343bobo221b2o$2bo15b2o344b2o$obo$b2o14bo$5bobo
7bobo166bo417bo$6b2o8b2o167bo415bo$6bo110b2o64b3o415b3o$107bo9bo75bobo
68bo$105bobo10bo74b2o69bobo$28bo77b2o11bob2o71bo69b2o$7b2o18bobo88b2ob
o304bo$6bobo18b2o81b3o3bo2bobo139bo163bo180b2o$8bo14b2o91b2o2bo139bobo
162b3o158bo18b2o$23b2o235bobo81bo240bobo19bo$261bo82bobo237bo2bo151bo$
344b2o76bo83bobo76b2o12b3o138bo$422bo6b2o14bo60b2o91bo80bo57b3o$197bob
o69b2o151bo5bobo13bo62bo92bo77bobo$191bo5b2o69bobo62b3o91bobo14b3o120b
o111b2o$192bo5bo68bo54b3o10bo82b3o6bo140bo114b3o57b2o$190b3o70b2obob2o
64bo93bo11b2o63b3o58b3o12b2o89bo10bo59b2o$263bob2obobo67b2o85b4o10bo2b
o137bo2bo86bobo11bo$269bo67b2o82b2o2bo14b2o118bo19bobo88b2o$320b2o17bo
81b2o3bo134b2o18bo$320b2o103b2o133b2o$501b2o178b3o$500bo2bo177bo$191bo
308bobo179bo$191b2o308bo241bobo3b2o$190bobo371b3o175bob2o3bo$566bo175b
o3b2obo$183b3o379bo175b2o3bobo$185bo483bo$184bo485bo$668b3o$199b2o377b
2o$198b2o379b2o$200bo377bo100b2o$183b2o154b2o338bobo$184b2o153bobo337b
o67b2o$183bo155bo327b2o78b2o$666bo2bo$667bobo$668bo82b3o$751bo$752bo
17$683b2o$682b2o$684bo!

The second one has a slightly complex but interesting to note one-step 11-glider synthesis, made by me yesterday in several steps:

Code: Select all

x = 51, y = 35, rule = LifeSuper
33.I6.A$33.I.I2.2A$33.2I4.2A$14.I$12.I.I$13.2I25.A$39.A$10.K28.3A$8.K
.K$9.2K2$19.2D$19.2D2$43.3A$43.A$2K42.A$.2K4.K$K6.2K$6.K.K8.I$17.2I$
16.I.I4$.2M$2.2M$.M5$49.2M$48.2M$50.M!

0. Extracted the R+LoM+junk reaction from soup.
1. Used spark_search.py on the junk to find a dirty 3-glider replacement, as marked in state 1.
2. Used synthesise-patt.py on the Lom to find a 3-glider recipe fitting the three gliders in 1. It turned out that only two of the outputs were valid in the given orientation and timing, one as marked in state 9.
3. After numerous failed attempts to put the R-pentomino with results from synthesise-patt.py, turned to spark_search.py and found a dirty 3-glider placement delightedly, as marked in state 11. Some non-trivial interaction happens in the area marked in state 4.
4. After confirming that the core reaction works, manually moved gliders around and found one-glider cleanup on two sides respectively, as marked in state 13.
It was later obsoleted today with the discovery of a new method. Coincidentally, this one was also completed by using synthesise-patt.py once and spark_search.py twice. A glider is saved from cleanup.
The following incomplete and invalid reaction for the third still life seems to have potential for another motif:

Code: Select all

x = 28, y = 19, rule = B3/S23
23bobo$24b2o$24bo$6bo$5bo$5b3o3$13b2o11b2o$12bo2bo9b2o$13b2o12bo3$16bo
$b2o12bobo$obo11bo2bo$2bo7bo4b2o$10bo$10bo!
#C [[ STOP 46 ]]

One more today: 11G xs16_39cggzx10pic

Code: Select all

x = 117, y = 55, rule = B3/S23
13bo$14bo$12b3o2$43bo$42bo$42b3o2$49bobo$39bo9b2o$38bo11bo$38b3o2$112b
o$111bo$111b3o2$obo$b2o105bo$bo105bobo$107bobo$108bo6b2o$113bo2bo$113b
2o$111b2o$112bo$107b2o2bo$107bo2bo$108b2o4$13b2o$12bobo90b3o$14bo23b2o
$38bobo62bo5bo$38bo64bo5bo$103bo5bo$47bo$46b2o57b3o$46bobo3$109b3o$
109bo$110bo7$2b2o$3b2o$2bo!

Making 16-in-12 is becoming harder... Carry on!
EDIT on March 17, evening: xs15_259q4gozw23 in 8G, using a trick I saw in another synth: the 2G loaf+blinker constellation is a 1G century/bookend seed with moderate forward clearance.

Code: Select all

x = 145, y = 54, rule = B3/S23
62bo$60b2o$61b2o3$42bo$41bo$41b3o3$41bo$40bo$40b3o8$131bo$130bobo$11bo
118bo2bo2bo$11bo119bob4o$11bo120bo7bo$5b2o127bo5bo$2o2bo2bo125b2o5bo$b
2o2bobo$o5bo$142b3o$142bo$143bo20$41bo$40b2o$40bobo!

EDIT on March 18, evening: xs16_358g0ggzy011012ko, xs16_3h4e1daz011, xs16_3hik8zpic, xs16_3loz12215a4

Code: Select all

x = 470, y = 54, rule = B3/S23
2bo306bo52bo104bo$obo304b2o51bobo104bobo$b2o27bo277b2o51b2o104b2o$28b
2o355b3o54bo$29b2o409bobo$383bo5bo51b2o$366bo16bo5bo$364bobo16bo5bo57b
o$365b2o81b2o$98bobo346b2o17bo$25bo73b2o22b2o341bobo$23b2o74bo8bo13bob
o6bo334b2o$24b2o82bo12bo9bo315bo$12bo95bo11bo10bo256b2o55bobo$13b2o
104bo268b2o56b2o$12b2o12b2o76b3o3b3o6b2o6b3o3b3o$25b2o93bo255b3o7bo$
27bo80bo10bo11bo246bo6b2o$14b2o92bo9bo12bo131bo105b3o5bo7bobo$15b2o91b
o6bobo13bo8bo54bo66bobo106bo$14bo100b2o22b2o55bo65bobo105bo$139bobo52b
3o66bo115b3o$381bo$380bo$195b2o$196b2o7bo69bo$9b2o184bo9bo69bo$10b2o
193bo69bo$9bo27b2o171b2o68b2o$37bobo169bo2bo53b2o11bo2bo2b2o$37bo171bo
bo54b2o11bobo2b2o173b2o$210bo69bo5bo171b2o$191b2o267bo$190bobo256bo$
192bo256bo6bo$449bo6b2o$455bobo4bo$461b2o$461bobo13$304b2o$303b2o$305bo!

[GUYTU6J]

Another help request: how to insert the uppermost active region for a <12G synthesis of xs16_3lo0kcz3421?

Code: Select all

x = 44, y = 14, rule = B3/S23
36bo$36bo$35bo$35b2ob2o2$39b3o$38bo3bo$b2o6b2o20b2o4bo$o2bo5bobo18bo2b
o4bo4bo$b2o7bo20b2o6b2ob2o$41bo$9b2o$8bobo$10bo!

It vaguely looks like a possible outcome of something hitting a ship or a boat. The original soup is a bit too messy to provide a clue:

Code: Select all

x = 16, y = 16, rule = B3/S23
2bo2b3ob6o$ob2o6bo2b2o$2ob2obo2b3obobo$o2b4ob2obo2bo$b14o$b7obo3bobo$
3b2o5b5o$obo7b2o$ob2o4bo2b2obo$2b3ob3ob2o3bo$b2ob4o2bo2b2o$5bobob2o2bo
bo$3ob3o2bo3b2o$2o2b2o6b2o$3obo2b6o2bo$2b4obob4obo!

[Hdjensofjfnen]

Another help request: how to insert the uppermost active region for a <12G synthesis of xs16_3lo0kcz3421?

This is the best that's available from the soup itself, although I agree that the solution probably won't come from it:

Code: Select all

x = 14, y = 17, rule = B3/S23
8bo$9bo$7b3o3$9b2o2$8b3obo$8b3o2$5b3o4$b2o6b2o$o2bo5bob2o$b2o7b3o!

[mniemiec]

Another help request: how to insert the uppermost active region for a <12G synthesis of xs16_3lo0kcz3421? ...

This gets close; you just need to find a way to add a honeyfarm around generation 32. I couldn't find a way to do it. It might be easier if you use a different LOM predecessor, but the ones I tried interfered with the top honeyfarm. There might be a way to juggle these three pieces to all fit:

Code: Select all

x = 165, y = 33, rule = B3/S23
8bobo15bo$9boo13boo$9bo15boo4$69b3o47b3o40b3o$69bobo47bobo$4bobo61bobb
o46bobbo$5boo54bo7boo40bo7boo$5bo37bo15bo4bo28bo15bo4bo28bo$44bo13bo5b
o29bo13bo5bo29bo$40b6o13bo4bo5b3o17b6o13bo4bo5b3o17b6o$44bo16bo7bo3bo
20bo16bo7bo3bo20bo8boo3boo$43bo25bo23bo25bo23bo9bobobobbo$70bobbo46bo
bbo32boobo$7boo49boo31b3o14boo17boo29bo$8boo30b3ob3o12boo29bo3bo14boo
15bobbo25bobo$7bo34bo3bo11bobo32bo14bobo14booboo25boo$23boo16boob3o13b
3o29bo17b3o13bobo$22bobbobbo13bobo15boo30bo17boo15bo$23boobbo12b3ob3o
15bo49bo$27b3o50bo11bo37bo$79boo48boo$oo77bobo47bobo$boo$o$19boo$18boo
$20bo$38bo$37boo$37bobo!

[May13]

Improvements for 3 xs15's (8G, 10G, 10G; 62 still lifes left):

Code: Select all

x = 280, y = 189, rule = B3/S23
248bo28bobo$246b2o29b2o$247b2o29bo4$224bobo$225b2o$225bo4$30bo$31bo$
29b3o5$29bobo$30b2o24bo$30bo25bobo180bo$56b2o179b2o$238b2o2$248b2o$
247b2o$249bo2$230bo$228b2o$229b2o3$230b2o$229b2o$231bo6b2o$30b2o206bob
o$23b2o4bobo206bo$24b2o5bo$23bo11$51b2o$50b2o$52bo$19b3o$21bo$20bo2$9b
3o$11bo$10bo19$159b2o$160b2o$159bo4$165b2o$166b2o$165bo50$8bo$7bo$7b3o
7$2bo$obo$b2o3bo$5bo$5b3o6$o15bo$b2o12bo74b2o$2o13b3o73bo$90bo$89bo$
90b3o$93bo$92bobo$93bo4$110bo$108b2o$109b2o2$5b2o93bo$4bobo93bobo$6bo
93b2o7$101b2o$101bobo$101bo3$103b3o$103bo$104bo!

Edit: potential 10G?

Code: Select all

x = 16, y = 16, rule = B3/S23
8b2o$7bo2bo$6bo3bo$6bo2bo$b2o3bo2bo$o2bo3b2o$b2o$9bo$7b3o$6bo$6b3o$2b
2o$2b2o$13b2o$13bobo$13bo!

Edit 2 (8 April): 60 xs15's left:

Code: Select all

x = 203, y = 251, rule = B3/S23
72bo$70b2o$71b2o33$56bobo$56b2o$57bo2$55bo$53b2o$54b2o8$bo$2bo$3o4$30b
o$20bo8bo$19bo9b3o$19b3o162b2o$179b2o2bobo$179bo2bobo$16bo164b2o$14bob
o165bo$15b2o163bo$180b2o3$195b2o$194bobo$195bo4$201b2o$200b2o$202bo20$
54b2o$54bobo$54bo4b3o$59bo$60bo116$74bo$74bobo$74b2o$65bo$63bobo$64b2o
65b2o$130bo2bo4b2o$71bo48b2o9b2o4bo2bo$72b2o47bo2bo13bobo$62bo8b2o46bo
2b3o14bo$63b2o54b3o$62b2o58bo$76bo44bo$60bo15bobo42b2o$60b2o14b2o$59bo
bo3$75bo$74b2o$68bo5bobo56bo$67b2o64bo$67bobo63bo$122b3o$124bo10b3o$
123bo8$123bo$123b2o$122bobo!

Edit 3 (9 April): 58 xs15's left (I uploaded these syntheses):

Code: Select all

x = 796, y = 114, rule = B3/S23
607bo$608bo$606b3o29$244bobo$244b2o$245bo19$127bo$127bobo82bobo$127b2o
84b2o$121bo91bo$119bobo$120b2o5$227b2o$226bo2bo$227b2o$102b3o2$3bo$2bo
221b2o$2b3o201b3o14b2o547b2o$225bo546bo$6b2o766bo$3o3bobo653bo8bo101b
2o$o5bo96bo559bo5b2o102bo$bo100bobo556b3o6b2o10b2o90bo$102b2o577bo2bo
90bo$682b2o89bobo$207bo564bobo$206bobo563b2o$206b2o2$786bo$785bobo6b2o
$785bobo6b2o$786bo2$268b2o$267b2o383bo$269bo382b2o$651bobo125b2o$779b
2o2$791bo$790b2o$790bobo6$790bo$789b2o$789bobo7$616bo$616b2o$243b3o
369bobo$243bo$244bo!

[May13]

14-in-9 is getting closer to reality!
8G synthesis of xs14_3lozx3lo:

Code: Select all

x = 40, y = 40, rule = B3/S23
o26bo$b2o23bo$2o15bobo6b3o$17b2o$18bo17bo$35bo$5bo29b3o$6b2o$5b2o18$
10b2o$9bobo22bo$11bo21b2o$33bobo8$38bo$37b2o$37bobo!

Thanks for Charity Engine for finding 9th soup in C1:

Code: Select all

x = 16, y = 16, rule = B3/S23
obob2o2b5ob2o$5ob4o5bo$ob3obobo3bob2o$ob4obob2o2bobo$2ob2ob6ob2o$b3obo
2b2o4b2o$2o5b2ob6o$ob2o3b3obobobo$2bo2b3ob2o3b2o$b2ob2obo3b2obo$o5b2o
2b2o3bo$b5obobobo3bo$3bo2bobo2b2o2bo$bo5bobobob2o$ob2o6bo$2obo3bob2obo
b2o!

I'm still working on 15-in-10. 4 more still lifes (54 left):

Code: Select all

x = 796, y = 80, rule = B3/S23
37bo$36bo$36b3o6$37bo$37bobo$37b2o$20b2o$20bobo$15b2o3bo$14bobo701bo8b
o$16bo84b2o19bo596b2o7bo$102bo2b2o15bobo197bo395b2o6b3o$102bobobo15b2o
197bo$21b2o80b2o216b3o$20b2o83bo393bo$22bo79bobo192bo199bobo$102b2o4b
2o188bo199b2o$108b2o7b3o176b3o2$115bo5bo$115bo5bo$115bo5bo2$117b3o244b
2o$364bo421bo$361bo3bo419bo5bo$361b4obo418b3o3bobo$366bo135bo288b2o$
363bobo137b2o$363b2o137b2o13b2o49b3o$6b2o303b2o194bo8b2o$5bobo285b3o5b
2o8bobo2b2o188bo11bo$7bo287bo6b2o7bo3b2o189b3o$294bo6bo15bo243b2o$322b
o36bo201bo$106b3o212b2o36bo202bo12bo$26b2o293bobo35bo201b2o2b2o7b2o$
26bobo533bobobo7bobo$26bo535bo2bo$3o497b2o61b2o$2bo496bobo$bo96b2o401b
o$97bobo$99bo265b3o$365bo126b2o$366bo124bobo$493bo$510b2o$510bobo$510b
o244bobo$755b2o$756bo2$741b2o$740bobo$742bo3$758bo$757b2o$757bobo6$
784bo8b3o$783b2o8bo$783bobo8bo4$785b2o$784b2o$786bo!

[GUYTU6J]

Meanwhile, I am also making efforts in 16-in-12.

8G xs16_69eg8k8zx56, xs16_641j871z321 and xs16_69ab88gzx321

Code: Select all

x = 364, y = 39, rule = B3/S23
90bo$89bo264bo$89b3o261bo$348b2o3b3o$347bo2bo$87bo113bobo144b2o$14bo
72bo62bo50b2o88bo$2bo11bobo70bo63b2o49bo87bo$obo6bo4b2o134b2o110bo27b
3o$b2o4bobo250bobo$8b2o251b2o10bo$273bobo73b2o2b2o$90bo182b2o74bo3bo$
4bo84bo260bo4bo$5b2o82b3o187bobo69bo2b2o$4b2o273b2o71bo$280bo72b3o6bo$
86b3o266bo5bo$361b3o$84bo5bo$84bo5bo$84bo5bo266b2o$260b2o95b2o$86b3o
172b2o8b2o$166b2o92bo9bobo$83bo83b2o6b3o94bo$83bo82bo8bo$83bo92bo2$
165b3o$83b2o82bo17b2o$2b2o16bo61bo2bo80bo7bo10bobo$3b2o14b2o62b3o88b2o
9bo$2bo16bobo64b2obo83bobo$85bo2b2o$84bobo$85bo96b2o$181b2o$183bo!

9G xs16_4a4o79k8zw11 and xs16_628q552z311

Code: Select all

x = 129, y = 50, rule = B3/S23
128bo$126b2o$127b2o10$7bo$8b2o$7b2o3$bo$2bo$3o2$98b3o3b3o$5bo$6bo95bo
9bo$4b3o95bo9bobo$102bo9b2o$25bobo$25b2o$26bo96bo$103bo19bobo$103b2o
18b2o$102bobo$14bo$14bo$14bo105b3o$122bo$121bo6$24b3o$24bo$25bo2$14b2o
$13bobo5b2o64b3o$15bo5b2o66bo$88bo!

10G xs16_3pmggozw4a4 and xs16_69akg4czx146

Code: Select all

x = 264, y = 70, rule = B3/S23
16$40bo$38b2o$39b2o2$233bo$232bo$232b3o4$15bo8bo145bo69bo$16b2o6bobo2b
obo136b3o67b3o$15b2o7b2o3b2o136bo69bo$30bo66b2o68b2o68b2o$97b2o$102bo
125b2o$101bobo123bobo$93b2o7bo126bo$92bobo$29b2o63bo5b5o129bo$28bobo
69bo3bo128bobo3bo$28b2o73bo129b2o4bobo$26b2o75bobo133b2o$25bobo5b2o69b
2o$25b2o5bobo64b2o59b3o$12bo19b2o65b2o61bo75b3o$12b2o16b2o129bo76bo$
11bobo15bobo133bo73bo$29b2o64b2o68b2o66b2o$94bobo67bobo66b2o$96bo$168b
3o$168bo$169bo14$244b2o$244bobo$244bo!

Unusual edge-shooter

Code: Select all

x = 16, y = 35, rule = B3/S23
4bo$5b3o$5b3o2$7bo6bo$6bobo4bobo$6bobo4bobo$7bo6bo2$2b2o7b2o$bo2bo5bo
2bo$2b2o7b2o2$7bo$6bobo$6bobo$b2o4bo$o2bo$b2o2$6bo$5bobo$5bobo$6bo7$o$
o$o2$2b3o!

EDIT: oh, I forgot the quick cleanup method. xs16_8e123ckzx311, xs16_69m88cz0643 and xs16_69p6426z32

Code: Select all

x = 387, y = 43, rule = B3/S23
375bo$373bobo$374b2o3$140bobo$141b2o$141bo$164bo$164bobo$164b2o$20bo$
20bobo354bo$20b2o356b2o$230bo146b2o$15bobo211bo64bo3bobo83b2o$bo13b2o
212b3o62bo3b2o84bobo$2bo13bo277bo4bo85b2o$3o$227bo$227bo$227bo60bo89bo
$287bobo87bobo$286bo2bo86bo2bo$13bo273b2o62bo25b2o$11bobo10bo57bobo
264bobo$12b2o9bo58b2obo142b2o120b2o$23b3o54b2o3bo79bo61bo2bo2b2o$81bo
3b2o78bobo60b2obo2bo$14bobo63bo84b2o63bob2o144bo$15b2o64b3o146bo147bo$
15bo3bobo61bo66b2o16bo5bo54b2o147bo$19b2o129b2o15b2o5bobo$20bo69b3o74b
obo4b2o114bo83b3o3b3o$289b2o$88bo200bobo86bo$88bo289bo$88bo197bo91bo$
286b2o$285bobo$91b2o$90b2o$92bo!

[May13]

8G xs16_69eg8k8zx56

Reduction (7G):

Code: Select all

x = 32, y = 38, rule = B3/S23
2bo$obo$b2o8$24bo$12bo11bobo$10bobo6bo4b2o$11b2o4bobo$18b2o3$14bo$15b
2o$14b2o16$12b2o16bo$13b2o14b2o$12bo16bobo!

Incomplete xs15 synthesis:

Code: Select all

x = 111, y = 18, rule = B3/S23
47b2o$46b2o$9b2o32b2o3bo52b2o$3b2o3b2obo32b2o54b2obo$2b3o6b2o30bo59b2o
$2bobo5b2o84bo5b2o$bo8bo85b2o4bo$b4o12bo77bobo11bo$b5o10b2o90b2o$obo2b
2o8b4o88b4o$obob3o11bo37bo53bo$4bobo7b2o2bo37bobo47b2o2bo$2bo48b2o3b2o
$3b2o47b2o$4bo46bo$58b2o$57b2o$59bo!

Edit: done! 8G:

Code: Select all

x = 48, y = 39, rule = B3/S23
5bo$6bo$4b3o9$44bo$44bobo$44b2o8$35b2o$34b2o$11b2o23bo$12b2o$11bo5$b2o
$obo$2bo$6b2o11b2o$7b2o11b2o$6bo12bo$46b2o$45b2o$47bo!

Edit 2 (11.04.2022): I don't know who synthesized 53th xs15, but there are reductions for 3 other still lifes (49 left):

Code: Select all

x = 759, y = 101, rule = B3/S23
360bo$361b2o104bobo$360b2o105b2o$468bo2$676bo$674b2o$675b2o2$155bo$
154bobo$153bo2bo$154b2o3$9bo62bo$9bobo59bobo77bo$9b2o59bo2bo76bobo$71b
2o7bo70bobo$80bobo69b2o$80b2o3$145b2o$146b2o$145bo8b2o$3o151bobo$2bo
151bo78b2o$bo231bobo$234bo2$232b5o$230bo2bo2bo$230b2o174bobo$406b2o$
407bo146bo$553bo96b2o$553b3o93bo2bo$649bobo$55b2o124b2o50b3o414bo$54bo
bo123b2o$56bo125bo3$79bo158b2o$78b2o94b3o60b2o143bo352b2o$78bobo93bo
64bo143b2o160b2o99bo88bobo$175bo206b2o160bobo100bo89bo11b2o$546bo98b3o
88bo12b2o$735bo$392bobo341b3o$393b2o248b3o93bo$393bo14b3o227b2o5bo92bo
$408bo230b2o3bo92bo19b2o$390bo18bo228bo98b2o17b2o$390b2o366bo$389bobo$
396b2o$396bobo$396bo35$672b3o$375b2o295bo$374bobo296bo$376bo$620b3o$
622bo$621bo!

Also, 26th C1 soup for xs14 has appeared.

[May13]

16-in-12: 10G xs16_g39s0qmz11:

Code: Select all

x = 56, y = 72, rule = B3/S23
55bo$53b2o$54b2o7$o$b2o$2o10$36bo$36bobo$36b2o4$31bo$29b2o$30b2o3$33b
3o$33bo$34bo6$36b2o$35b2o$37bo13$44b2o$44bobo$19bo24bo$19b2o$18bobo3$
48b2o$47b2o$49bo5$4b2o$3bobo$5bo!

15-in-10: 10G xs15_0kc3213z346 and xs15_178j146zx23, 8G xs15_31461tic:

Code: Select all

x = 1295, y = 127, rule = B3/S23
328bo$328bobo$328b2o9$226bo$224bobo928bobo$225b2o929b2o$1156bo17$8bo$
8bobo$8b2o$2bo$obo$b2o$94b2o$93bo2bo181b2o461bo$94b2o181bo2bo461b2o26b
o402bo$278b2o461b2o26bo404b2o$769b3o401b2o102bo$1275b2o$111bo1164b2o$
110bo$110b3o2$760bo46bo$758b2o45bobo$290b2o431bo35b2o45b2o385bo$290b2o
2b2o425bobo467bobo$275bo18b2o426b2o25bobo440b2o$273bobo473b2o$114b2o
158b2o474bo$114bobo695bo$114bo162b2o533bo$278b2o532bo$277bo$1223bobo$
816bo407b2o$814b3o407bo$813bo$810bobo2b2o$757b3o50b2o4bo$757bo56bo$
758bo55b2o5$284b3o464b3o$284bo466bo$285bo466bo2$747b2o$746b2o$748bo2$
730b2o$731b2o$730bo21$229bo$229b2o$228bobo14$1229b2o$1228bobo62b2o$
1230bo61b2o$1294bo4$1272b3o$1272bo$1273bo!

(Edit 4) 42 xs15's left.
Edit: 10G xs15_ggkq23z1ac:

Code: Select all

x = 45, y = 36, rule = B3/S23
23bo4bo$22bo5bobo$9bo12b3o3b2o$7bobo$obo5b2o$b2o$bo4$42bo$36bo5bobo$9b
o11bo14bobo3b2o$10b2o10b2o12b2o$9b2o10b2o8$3b2o$4b2o$3bo9$28b3o$28bo$
29bo!

Edit 2: 10G xs15_0g8it246z23 (better cleanup):

Code: Select all

x = 95, y = 67, rule = B3/S23
91bobo$91b2o$92bo17$2bo$obo$b2o59bo$40bobo18bobo$4b2o35b2o18bobo$3bobo
35bo20bo$5bo3$63bobo$51bo11b2o$52bo11bo$50b3o10$56b3o$37bo18bo$37b2o
13b2o3bo$36bobo12bobo$53bo19$92b3o$92bo$93bo!

Edit 3: 9G xs15_31248gzca511:

Code: Select all

x = 56, y = 61, rule = B3/S23
o$b2o$2o14$30bo$29bo$29b3o$23bo$15bo5bobo$16bo5b2o$14b3o5$31bo$31b2o2b
2o$30bobo2bobo$35bo9$16bo10b3o$16b2o11bo$15bobo10bo17$53b3o$53bo$54bo!

Edit 4: 10G xs15_0j9c871z121:

Code: Select all

x = 190, y = 47, rule = B3/S23
166bo$167bo20bo$165b3o19bo$187b3o3$171bo$170bobo8b2o$92bo77bobo7bo2bo$
5bo85bobo77bo9b2o$6bo71bo13bo$4b3o71bobo$78b2o9b2o$88bo2bo88bo$2bo74bo
11b2o88bobo$obo72bobo102bo$b2o2b2o69b2o99b3o$6b2o168bobo$5bo170bo3bo$
175b2o2b2o10$77b2o$77bobo$77bo$70b2o$69bobo$71bo10$43b2o$42bobo$44bo!

Edit 5 (after update of b3s23/synthesis-costs): 10G xs15_08u15a4z65:

Code: Select all

x = 187, y = 119, rule = B3/S23
165bo$164bo$164b3o34$95bo$88bobo2bobo$89b2o3b2o$89bo5$118bo$118bo$118b
o2$114b3o3b3o2$118bo$118bo$118bo$11bo$9bobo2bo$10b2o2bobo$14b2o107b3o
2$121bo5bo$121bo5bo$121bo5bo2$123b3o5$119b3o$119bo$120bo2$2o$b2o97b2o$
o100b2o$100bo21bo$121b2o$121bobo40$184b3o$184bo$185bo!

8G xs15_0ci52zoge3:

Code: Select all

x = 41, y = 45, rule = B3/S23
9bo$10bo$8b3o24$o$b2o$2o4$38bo$31bo4b2o$29bobo5b2o$30b2o3$6bo32b2o$7bo
30b2o$5b3o32bo2$9b2o2b2o$10b2obobo$9bo3bo!

Edit 6: 10G xs15_0cp3zmdz11:

Code: Select all

x = 104, y = 33, rule = B3/S23
6bo$7bo$5b3o3$101bo$22bo78bobo$22bobo76b2o$6bo15b2o$bo5bo$2bo2b3o89bo$
3o35bo57bobo$38bobo55bobo$38b2o57bo$23bo$21b2o$22b2o5$92b2ob2o$92bob2o
bob2o$20b3o75b2o2bo$22bo78b2o$21bo4$42b2o$11b3o28bobo$13bo28bo$12bo!

Edit 7: 9G xs15_0dbgzojd:

Code: Select all

x = 28, y = 27, rule = B3/S23
13bobo$obo10b2o12bo$b2o11bo10b2o$bo24b2o2$14bobo$7bobo4b2o$8b2o5bo$8bo
4$18bobo$18b2o$19bo6$6bo$6b2o$5bobo11b2o$18b2o$14bo5bo$13b2o$13bobo!

Edit 8: 10G xs15_0g88b5z8k96:

Code: Select all

x = 143, y = 36, rule = B3/S23
bo$2bo$3o4$81bobo$64bo16b2o$63bobo16bo$64b2o2$8b2o$7b2o131bobo$9bo121b
o8b2o$130bobo8bo$129bobo$73bo55bo$72b2o56bo3b2o$68b2o2bobo56bo2b2o$67b
obo58b3o$69bo57bo$128bo$63bo63b2o$63b2o$62bobo5$62b2o$63b2o$62bo$72b3o
$66b2o4bo$66bobo4bo$66bo!

37 xs15's left.
Edit 9: 10G xs15_0ghn84cz56:

Code: Select all

x = 113, y = 32, rule = B3/S23
100bo$101bo$99b3o3$104bo$103bobo$103bobo$104bo2$110bobo$17b2o90bob2o$
17bobo85bo3bo$17bo87b3obo$bo7b3o13b3o80bo$b2o8bo13bo81bo$obo7bo15bo80b
2o2$101b2o$101b2o3$96b3o$98bo$97bo2$8b3o$10bo$9bo$3b2o29b2o3b2o$4b2o
28bobob2o$3bo30bo5bo!

36 xs15's left.
Edit 10: 10G xs15_0j96z122ak8:

Code: Select all

x = 156, y = 34, rule = B3/S23
98bo$99b2o$98b2o16$139b2o$2bo32b2o101bo2bo$2o32bo2bo101b2o$b2o32b2o2$
126bobo21bo3b2o$127b2o4b3o7b2o5bo3b2o$39b2o86bo5bo9b2o5bo$4b2o33b2o7bo
85bo$3b2o41b2o5b2o75bo15b3o$5bo41b2o4bobo74b2o$53bo75bobo18bo$bo148bo$
b2o43b3o101bo$obo45bo$47bo!

Someone made 10G synthesis of xs15_g84213zc953 (currently #36 in list), so there are 34 xs15's left.

[GUYTU6J]

11 + 54 = 65 to go for 16-in-12 in the last update. I also made some syntheses this morning but I forgot the apgcodes except xs16_c9jzw122c826; sometimes I may not have time to post them on the forums.

From this afternoon: 9G xs16_02egdbz2521 and 10G xs16_8k9bkk8zw23, xs16_3146pajo (implying a nice component), xs16_ca5la4z311

Code: Select all

x = 372, y = 48, rule = B3/S23
257b2o$15bo101bo64bo74b2o110bo$16bo90bobo5b2o66bo185bobo$14b3o80bo9b2o
7b2o63b3o185b2o$90bo7bo9bo145b2o$38bo52b2o3b3o154bobo$11bo24b2o52b2o
80b3o80bo$12b2o23b2o225b2o$11b2o251bo2b2o52bo$98bo166bobo54bo$99bo164b
2o2bo51b3o$25bo71b3o166b2o$24bo78bobo86b2o72bo$24b3o76b2o73bo14b2o73bo
$104bo73b2o12bo4b2o68b2o$99bo77bobo17bobo$100b2o95bo$99b2o11bo75b3o$
111bobo76bo$111bobo75bo$32bo79bo$32bobo73b2o$32b2o73bo2bo$108b2o61bo$
171b2o16b2o160bo$170bobo15b2o161bobo$190bo160b2o$358bo$356b2o$357b2o$
334b2o17bo$8b3o323b2o16b2o$10bo341bobo$9bo2$20b2o$19b2o326bo$21bo324b
2o$346bobo$339bo$339b2o$338bobo$3o343b2o$2bo342b2o$bo345bo$27b2o$27bob
o$27bo!

EDIT three hours later: Wow, I feel pretty slow compared with your progress. It must be that I have spent a large amount of time checking soups and searching candidate reactions in synthesis databases.

8G xs16_drz3eg8o, xs16_ci9b8ozw56 and 10G xs16_ciab8ozw56 (by BOMBARDING a mature pulsar )

Code: Select all

x = 276, y = 66, rule = B3/S23
168bobo$168b2o104bo$169bo103bo$273b3o$162bobo$162b2o$163bo4$4bo$3bo$3b
3o$18bo$bo15bo68b2o$2bo14b3o53bo13bo$3o68bobo12bo137b3o3b3o$72b2o12b2o
54bobo$87bo55b2o22bo54bo4bobo4bo$11bo67b3o4bo56bo22b2o54bo4bobo4bo$9b
3o8b3o51b2o10b2o78bobo53bo4bobo4bo$8bo11bo53b2o11bo136b3o3b3o$8b2o11bo
65bob2o62b2o$88bobo62bobo68b3o3b3o$153bo68bo4bobo4bo$222bo4bobo4bo$15b
o206bo4bobo4bo$14b2o124b3o$14bobo125bo22bo58b3o3b3o8bobo$141bo22b2o75b
2o$164bobo75bo3bo$143bo101b2o$143b2o100bobo$142bobo10$237b2o8b2o$238b
2o7bobo$237bo9bo5bo$252b2o$252bobo16$273bo$272b2o$272bobo!