Still Life Synthesis Thread

[mniemiec]

Something I ran across that doesn't seem to have been mentioned on the forum: the second synthesis of canoe at https://conwaylife.com/patterns/canoe_synth.rle (the anti-parallel one) is not rewindable. ...

This is a very old and out of date synthesis file, from my original web pages (1997, last updated in 1999). I'm curious as to who scraped that and when. Also, those RLE headers were auto-generated, and not by me. That bad synthesis is not in the most recent published version of my pages (total site revamp in 2013, and last updated in 2015): https://conwaylife.com/ref/mniemiec/0/8cs.rle

For the 2015 version of my syntheses, go to https://conwaylife.com/ref/mniemiec/lifepage.htm

[MathAndCode]

xs28_39c8a6z2552s0cczw321 in 30G if I counted correctly:

Code: Select all

x = 1315, y = 57, rule = B3/S23
799bo$799bobo$799b2o102bo$904bo$902b3o$917bo190bo$192bo723bo191bobo97b
o$193bo722b3o189b2o97bo$191b3o1013b3o$893b2o98b2o98b2o$892bo2bo96bo2bo
96bo2bo$892bobo97bobo97bobo$893bo99bo16b2o81bo16b2o84b2o98b2o$290bo
718bo2bo96bo2bo83b2o13b2o83b2o5b2o$288bobo8b2o98b2o98b2o98b2o98b2o98b
2o98b2o98b2o9b2o87b2o9b2o90b2o7bobo88bo2bo4bo$289b2o8b2o98b2o98b2o98b
2o98b2o98b2o98b2o98b2o98b2o93b4o3bobo7bo82b4o3bobobo3bo$106b2o98b2o98b
2o98b2o98b2o98b2o98b2o77b3o18b2o98b2o98b2o98b2o85bo4bo2bo91bo4bo2bo2bo
4b3o$106b2o5b2o91b2o5b2o84b2o5b2o5b2o73bobo8b2o5b2o5b2o84b2o5b2o5b2o
84b2o5b2o5b2o84b2o5b2o5b2o72bo11b2o5b2o5b2o84b2o5b2o5b2o84b2o5b2o5b2o
84b2o5b2o5b2o78b2o2bobobo91b2o2bobobo$113b2o98b2o84b2o12b2o74b2o8b2o
12b2o84b2o12b2o84b2o12b2o84b2o12b2o71bo12b2o12b2o84b2o12b2o84b2o12b2o
84b2o12b2o82bobobobo93bobobobo$389bo808bo3b2o94bo3b2o$12b2o478b3o97b3o
97b3o97b3o97b3o97b3o97b3o$6b2o4bobo382b2o98b2o98b2o98b2o98b2o98b2o98b
2o98b2o$5bobo4bo96b2o98b2o98b2o86b2o10b2o86b2o10b2o86b2o10b2o86b2o10b
2o86b2o10b2o86b2o10b2o86b2o10b2o86b2o10b2o202b2o$7bo101b2o98b2o98b2o
98b2o98b2o98b2o98b2o98b2o98b2o98b2o98b2o201b2o$191b3o1120bo$193bo8b2o
98b2o98b2o98b2o15bo82b2o98b2o98b2o98b2o98b2o98b2o$16b2o174bo8bobo87b3o
7bobo97bobo97bobo15bobo79bobo97bobo97bobo97bobo97bobo97bobo$16bobo182b
2o90bo7b2o86b2o10b2o98b2o16b2o80b2o98b2o98b2o98b2o98b2o98b2o$16bo182b
2o91bo6b2o89b2o7b2o98b2o98b2o98b2o98b2o98b2o98b2o98b2o$2o196bobo5b2o
90bobo5b2o81bo8bobo5b2o90bobo5b2o90bobo5b2o90bobo5b2o12bo77bobo5b2o90b
obo5b2o90bobo5b2o90bobo5b2o$b2o195b2o5bobo90b2o5bobo90b2o5bobo90b2o5bo
bo90b2o5bobo90b2o5bobo11bo78b2o5bobo90b2o5bobo90b2o5bobo90b2o5bobo$o
204b2o98b2o98b2o98b2o98b2o98b2o12b3o83b2o98b2o98b2o98b2o$203b2o98b2o
98b2o98b2o98b2o5bo92b2o5bo92b2o5bo92b2o5bo92b2o5bo92b2o5bo$202bobo97bo
bo97bobo97bobo97bobo4bobo90bobo4bobo90bobo4bobo90bobo4bobo90bobo4bobo
90bobo4bobo$202b2o98b2o98b2o98b2o98b2o5bobo90b2o5bobo90b2o5bobo90b2o5b
obo90b2o5bobo90b2o5bobo$610bo99bo99bo99bo99bo99bo$105b2o598b2o98b2o98b
2o98b2o98b2o$105bobo596bo2bo96bo2bo96bo2bo96bo2bo96bo2bo$99b3o3bo598bo
2bo96bo2bo3b2o91bo2bo3b2o91bo2bo3b2o91bo2bo3b2o$101bo414b2o187b2o98b2o
4b2o92b2o4b2o92b2o4b2o92b2o4b2o$100bo415bobo$516bo2$99b2o498b2o$98bobo
497bobo15b2o$100bo499bo14b2o$617bo$1089b2o$722b2o365b2o$722bobo$722bo
2$994b2o$993b2o$982bo12bo$982b2o$981bobo!

Based on this soup for xs27_j1u069mggkcz11y066:

I reduced the cost of xs27_j1u069mggkcz11y066 (and therefore xs28_39c8a6z2552s0cczw321) by three gliders (one by making the lower-right block and beehive together, one by making the middle-left blinker and block together, and one by making the angel directly instead of having a glider hit a bi-block). (The angel hits a block to make a century sequence, but because that block is made along with a blinker by a three-glider collision and therefore effectively only costs one glider, making the century sequence directly from a three-glider collision would not yield a cost reduction.)

Code: Select all

x = 1065, y = 60, rule = B3/S23
1052bo$1051bo$1051b3o7$438bobo$439b2o$439bo612bo$614bo436bo$614bobo
434b3o$614b2o427bo$760b2o148b2o129bobo16b2o$759bo2bo5bo140bo2bo129b2o
15bo2bo$760b2o5bo142b2o148b2o$767b3o$756b2o148b2o148b2o$756b2o148b2o5b
2o141b2o5b2o$913b2o118b2o28b2o$1032bobo$592b3o147b3o147b3o139bo7b3o$
438b2o157b2o148b2o148b2o148b2o$437bobo157b2o15b2o131b2o23b2o123b2o10b
2o136b2o10b2o$439bo173b2o18b2o136b2o136b2o148b2o$293bo321bo17bobo137bo
$294b2o156b2o148b2o29bo118b2o148b2o148b2o$293b2o156bobo147bobo147bobo
147bobo147bobo$451b2o148b2o148b2o12b2o134b2o148b2o$449b2o148b2o148b2o
14bobo131b2o148b2o$448bobo5b2o140bobo5b2o140bobo5b2o7bo132bobo5b2o140b
obo5b2o$448b2o5bobo140b2o5bobo140b2o5bobo140b2o5bobo140b2o5bobo$455b2o
148b2o148b2o148b2o148b2o$7bo142bo9bo131bo17bo142b2o5bo142b2o5bo142b2o
5bo142b2o5bo142b2o5bo$5bobo143b2o6bobo124b2o4b2o15bobo140bobo4bobo140b
obo4bobo140bobo4bobo140bobo4bobo140bobo4bobo$6b2o142b2o7bobo125b2o2bob
o15bobo121b2o17b2o5bobo140b2o5bobo140b2o5bobo140b2o5bobo140b2o5bobo$
160bo125bo23bo123b2o24bo149bo149bo149bo149bo$305b2o126bo21b2o148b2o
148b2o148b2o148b2o$304bo2bo146bo2bo146bo2bo146bo2bo146bo2bo146bo2bo$
161b2o141bo2bo3b2o141bo2bo3b2o141bo2bo3b2o141bo2bo3b2o141bo2bo3b2o141b
o2bo3b2o$161b2o142b2o4b2o142b2o4b2o142b2o4b2o142b2o4b2o142b2o4b2o142b
2o4b2o2$5b2o$6b2o$bo3bo$b2o$obo$149b3o$151bo887b2o$150bo888b2o4$894b2o
$893b2o$882bo12bo$882b2o$881bobo!

There are also some alternative two-glider cleanups, but I didn't find any one-glider cleanup.

Code: Select all

x = 33, y = 68, rule = B3/S23
20bo$19bo$19b3o9$20bo$19bo$19b3o$11bo$9bobo16b2o$10b2o15bo2bo$28b2o2$
24b2o$24b2o5b2o$b2o28b2o$obo$2bo7b3o$15b2o$15b2o10b2o$27b2o2$20b2o$19b
obo$19b2o$17b2o$16bobo5b2o$16b2o5bobo$23b2o$21b2o5bo$20bobo4bobo$20b2o
5bobo$28bo$23b2o$22bo2bo$22bo2bo3b2o$23b2o4b2o23$30b3o$30bo$31bo!

Edit: I improved it further.

Code: Select all

x = 784, y = 69, rule = B3/S23
753bo$752bo$752b3o7$289bobo$290b2o$290bo462bo$465bo286bo$465bobo284b3o
$465b2o277bo$611b2o129bobo16b2o$610bo2bo5bo123b2o15bo2bo$611b2o5bo142b
2o$618b3o$607b2o148b2o$607b2o148b2o5b2o$734b2o28b2o$733bobo$443b3o147b
3o139bo7b3o$289b2o157b2o148b2o148b2o$288bobo157b2o15b2o131b2o23b2o123b
2o10b2o$290bo173b2o18b2o136b2o136b2o$144bo321bo17bobo137bo$145b2o156b
2o148b2o29bo118b2o148b2o$144b2o156bobo147bobo147bobo147bobo$302b2o148b
2o148b2o12b2o134b2o$300b2o148b2o148b2o14bobo131b2o$299bobo5b2o140bobo
5b2o140bobo5b2o7bo132bobo5b2o$299b2o5bobo140b2o5bobo140b2o5bobo140b2o
5bobo$306b2o148b2o148b2o148b2o$bo141bo160b2o148b2o148b2o148b2o$2b2o133b
2o4b2o158bobo147bobo147bobo147bobo$b2o135b2o2bobo139b2o17b2o148b2o148b
2o148b2o$137bo147b2o$156b2o126bo21b2o148b2o148b2o148b2o$155bo2bo146bo
2bo146bo2bo146bo2bo146bo2bo$155bo2bo146bo2bo146bo2bo146bo2bo146bo2bo$
156b2o148b2o148b2o148b2o148b2o7$3o$2bo$bo2$781b3o$781bo$782bo11$703b2o
$702bobo$704bo!

[GUYTU6J]

This is a failed xs16_8e1248gzwad11 synthesis suggested by a soup.

Code: Select all

x = 33, y = 36, rule = B3/S23
31bo$29b2o$30b2o5$7bo$8b2o$7b2o2$27b3o2$25bo5bo$25bo5bo$25bo5bo2$27b3o
3$30b2o$19b3o8bobo$21bo8bo$20bo7$3o$2bo$bo$5b2o$4bobo$6bo!
#C [[ PASTEMODE 6 ]]
#C [[ PASTET 19 PASTE o$obo$2o! 25 5 ]]
#C [[ PASTET 27 PASTE o$obo$2o! 23 7 ]]

However, an active region at generation 34 could be stabilized into some exotic structures.

Code: Select all

x = 101, y = 28, rule = B3/S23
23bo$23bobo2bo$23b2o3bobo63bo$28b2o63bo$93b3o$8b3o67b3o2$6bo5bo63bo5bo
$6bo5bo63bo5bo$6bo5bo63bo5bo2$8b3o67b3o3$11b2o12bo55b2o$3o8bobo10b2o
44b3o8bobo9b2o$2bo8bo12bobo45bo8bo10b2o$bo30b3o36bo22bo3b2o$32bo65bobo
$33bo64bo2$19b2o68b2o$19bobo67bobo$19bo69bo2$7b2o68b2o$6bobo67bobo$8bo
69bo!

Unrelatedly, 10G xs16_g88b5zdjo based on this soup:

Code: Select all

x = 47, y = 39, rule = B3/S23
13b2o$12bo2bo27bobo$13b2o28b2o$44bo9$41bo4bo$39bobo2b2o$40b2o3b2o$6b3o
20b3o$8bo20bo$7bo22bo3$2o$b2o$o14$34b3o$34bo$35bo!

Previous record based on an old component for siamese shillelagh:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs16_g88b5zdjo costs 12 gliders (true).
#CLL state-numbering golly
x = 111, y = 16, rule = B3/S23
101bo3bobo$99bobo3b2o$100b2o4bo$62bo$61bo$61b3o$bo52b2o42b2ob2o$2b
o50bobo41bobob2o3bo$3o50bo4b3o36bo8bobo$11b2o5bo31b2obo4bo35b2obo
8b2o$11bobo3bo32bobo6bo34bobo$11bo5b3o$110bo$4b3o8bo87b2o3b2o$6bo
7b2o88b2o3b2o$5bo8bobo86bo!

Clean up this with five or less gliders and we will have a cheaper xs16_3loz122628c synthesis:

Code: Select all

x = 24, y = 29, rule = B3/S23
5bo$6bo$4b3o6$bo$b2o$obo$21b2o$20bo2bo$21b2o10$9bo$7bobo$8b2o$4b2o$3bo
bo$5bo!

EDIT on 12th: it appears that nobody has been interested in this post these days.
xs15_drz342sg in 7G based on this soup, transferring to 163 still lives:

Code: Select all

x = 22, y = 22, rule = B3/S23
8bo$9bo$bo5b3o$2bo$3o$20b2o$6bo13b2o$7b2o3bo$6b2o3b2o$11bobo10$11b2o$
11bobo$11bo!

xs16_mp3z124871 in 8G based on this soup:

Code: Select all

x = 40, y = 28, rule = B3/S23
bobo$2b2o$2bo12$8bo$6bobo$2o5b2o11b2o$b2o18b2o$o19bo9bo$8b3o18b2o$10bo
18bobo$9bo3$38b2o$17b3o17b2o$19bo19bo$18bo!

Previous record uses the same component as one above.
xs16_g88a52z5b8o in 9G based on this soup:

Code: Select all

x = 23, y = 29, rule = B3/S23
16bobo$16b2o$17bo3$15bo$15bobo$15b2o4$20b2o$20bobo$20bo$16b2o$16bobo$
16bo3$6b2o$7b2o$6bo8b2o$15bobo$15bo3$bo$b2o$obo!

Previous record:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs16_g88a52z5b8o costs 12 gliders (true).
#CLL state-numbering golly
x = 177, y = 23, rule = B3/S23
obo14bo$b2o12b2o$bo14b2o$119bobo$120b2o$48bo35bo35bo8bo43bo$48b3o
33b3o42b3o41b3o$8b3o3bo36bo35bo44bo43bo$10bo2b2o35bo35bo44bo43bo$
9bo3bobo34b2o34b2o43b2o42b2o$176bo$86b2o43b2o34bo7bo$52b2o32bobo
42b2o32bobo4bobo$51b2o34bo78b2o4b2o$53bo74bo$129b2o$85b3o40b2o33b
3o$85bo79bo$86bo77bo$129b2o$128bobo42bo$130bo41b2o$172bobo!

xs17_6248hv04ac in 8G based on a 4x64 soup starting from a 2G loaf+blinker as 1G century seed, which implies xs16_4a40vh248c in 10G:

Code: Select all

x = 132, y = 58, rule = B3/S23
44bo$42b2o$43b2o$obo$b2o$bo4$49bo$49bobo$49b2o11$76bo$75bobo$75bobo$
76bo2$116bo$75b3o39bo$77bo37b3o$76bo$86b2o30b2o6b2o$82b2o2bobo30b2ob2o
2bobo$82bobobo2bobo26bo3bobobo2bobo$16b3o64bo2bo3b2o31bo2bo3b2o$86b2o
38b2o$11b2o$6b2o2bo2bo$5bobo3bobo$7bo4bo16$47b2o$46b2o$48bo!

Previous record:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs17_6248hv04ac costs 13 gliders (true).
#CLL state-numbering golly
x = 147, y = 52, rule = B3/S23
47bo$46bo$46b3o18$obo10bo$b2o9b2o$bo6bo3bobo$8b2o$7bobo5$88b2ob2o
48b2ob2o$88bo3bo5bo36bo5bo3bo$89b3o6bobo35b2o4b3o$98b2o35b2o$89b3o
50b5o$89bo2bo49bo3bo$91b2o7b3o31b2o9bo$100bo34b2o7bo$101bo32bo8bo$
143b2o6$82b2o11b2o5bo$81bobo11bobo3b2o$83bo11bo5bobo2$86bo$80bo5b
2o$80b2o3bobo$79bobo!

[MathAndCode]

I was trying to complete a partial hook with tail→long ship converter and found a way of perturbing a grate to make something that almost stabilizes.

Code: Select all

x = 13, y = 12, rule = B3/S23
3o$o2bo$2ob2o2$8b2o$9bo$9bob2o$10bobo$5b3o$4bo$4bo$6bo!
#C [[ STOP 23 ]]

Can it be stabilized into a still-life?



Edit: Here is a (messy) way of achieving that perturbation with only two gliders.

Code: Select all

x = 13, y = 12, rule = B3/S23
3o$o2bo$2ob2o3$10b2o$10bobo$10bo2$2b3o$4bo$3bo!

Another edit: I completed the converter.

Code: Select all

x = 123, y = 29, rule = B3/S23
16bo$15bo$15b3o$8bo$7bo$o6b3o$b2o$2o4$3bo$4bo$2b3o11b2o3b2o93b2o3b2o$
11b2o4bo4bo89b2o3bo4bo$12bo4bob3o90bobo2bob3o$12bob2obobo93bobobobo$13b
obob2o95b2ob2o3$113bo$113bo$113bo2$12b2o$12bobo$12bo94b2o$106bobo$108bo!

However, one can make a ship instead with three fewer gliders.

Code: Select all

x = 24, y = 19, rule = B3/S23
2o$obo$2bo$2b2o19bo$4bo16b2o$5o17b2o$o$3b2o6bo$3bo6bo$4bo5b3o$b3o$bo5$
9bo$8b2o$8bobo!

Does that make the first converter redundant (i.e., is there a ship→long ship converter costing three or fewer gliders)?

[confocaloid]

xs40_xg88611688gzcii1y41iiczx344owo443zy311 (a 40-bit lake) in 20G:

Code: Select all

x = 165, y = 80, rule = B3/S23
2bo$3b2o$2b2o73bobo$77b2o$78bo2$8bo$9b2o$8b2o61bobo$71b2o$53bo18bo$53b
obo$53b2o3$139bo$140bo$138b3o4$40bo$41b2o$40b2o$11bo$12bo$10b3o3$147bo
$131bo14bobo$130bobo13bo2bo$129bo2bo6b2o6b2o$130b2o6bo2bo$138bo2bo$
136b2o4b2o$135bo8bo$22bo112bo8bo$22b2o109b2o10b2o15bo$21bobo92b2o14bo
14bo14bobo$56bobo56bobo14bo14bo14b2o$56b2o59bo15b2o10b2o$57bo77bo8bo$
135bo8bo$136b2o4b2o$138bo2bo$138bo2bo6b2o$131b2o6b2o6bo2bo$130bo2bo13b
obo$131bobo14bo$132bo3$67b3o$67bo$68bo$38b2o$37b2o$39bo4$139b3o$139bo$
140bo3$25b2o$24bobo$7bo18bo$7b2o$6bobo61b2o$69b2o$71bo2$bo$b2o$obo73b
2o$75b2o$77bo!

(based on a C4_4 soup and the 4G synthesis of xs15_4a96zzwccx33)

Code: Select all

#C https://catagolue.hatsya.com/hashsoup/C4_4/m_FMSHHmivE6SA153591/b3s23
x = 32, y = 32, rule = B3/S23
obo2bo3bo2bo2bo2b2obo3bo4b2o$2obob3o6b2obob4ob4o2bo$2b3o2b2o2bobobo2b
2o3b2obob2obo$2bobo2b3ob5obo2bo2b2obo2b2o$bo3bo3bobob3o2b3obobo3b2o$b
3o2b2obo5bo2b3ob2o3bo2b2o$2o5bo2bo4bob2o2bobo2bo3bo$b4o4bo3b3o3bo3bob
2ob3o$2b2ob4o2bob4o2bo3bo4b2o$bo2b2o4b3o2b2o2b2o3bob3o2bo$2o4bo3b6o4b
3o2bo$bob3o3b4obo2bo2b4o3b3o$3ob2ob3o2b2ob2o2b4o5bo2bo$obob3o7b2obobob
ob2o2b3o$bobo2bo4bob2o2b2ob2ob2o2b2obo$8b2o2bo5b2ob11o$11ob2o5bo2b2o$b
ob2o2b2ob2ob2o2b2obo4bo2bobo$2b3o2b2obobobob2o7b3obobo$o2bo5b4o2b2ob2o
2b3ob2ob3o$2b3o3b4o2bo2bob4o3b3obo$6bo2b3o4b6o3bo4b2o$o2b3obo3b2o2b2o
2b3o4b2o2bo$2b2o4bo3bo2b4obo2b4ob2o$b3ob2obo3bo3b3o3bo4b4o$bo3bo2bobo
2b2obo4bo2bo5b2o$2o2bo3b2ob3o2bo5bob2o2b3o$2b2o3bobob3o2b3obobo3bo3bo$
b2o2bob2o2bo2bob5ob3o2bobo$ob2obob2o3b2o2bobobo2b2o2b3o$bo2b4ob4obob2o
6b3obob2o$2o4bo3bob2o2bo2bo2bo3bo2bobo!

Edit: processed in jobs/4880764226

[Chris857]

xs32_g88611688gz122cggx1iiczy23443 (a 32-cell lake) in 14G from soup, down from 24G.

Code: Select all

x = 237, y = 55, rule = B3/S23
97bobo$98b2o$98bo10$98bo$99b2o108bo$22bo75b2o110bo$20b2o186b3o$21b2o$
o$b2o210b2o$2o142bo68b2o$143bo$143b3o59bo15b2o$206bo13bo2bo$204b3o13b
o2bo$218b2o4b2o$29b2o98b2o86bo8bo$28bo2bo96bo2bo77b2o6bo8bo$29b2o79b2o
17b2o78b2o4b2o7b2o4b2o$109bo2bo101bo8bo6b2o$110b2o102bo8bo$215b2o4b2o
$217bo2bo13b3o$217bo2bo13bo$95b3o120b2o15bo$97bo$96bo129b2o$226b2o3$230b
3o$141b2o87bo$140b2o89bo$142bo10$142bo$141b2o$141bobo!

[MathAndCode]

xs32_g88611688gz122cggx1iiczy23443 (a 32-cell lake) in 14G from soup, down from 24G.

Code: Select all

x = 237, y = 55, rule = B3/S23
97bobo$98b2o$98bo10$98bo$99b2o108bo$22bo75b2o110bo$20b2o186b3o$21b2o$
o$b2o210b2o$2o142bo68b2o$143bo$143b3o59bo15b2o$206bo13bo2bo$204b3o13b
o2bo$218b2o4b2o$29b2o98b2o86bo8bo$28bo2bo96bo2bo77b2o6bo8bo$29b2o79b2o
17b2o78b2o4b2o7b2o4b2o$109bo2bo101bo8bo6b2o$110b2o102bo8bo$215b2o4b2o
$217bo2bo13b3o$217bo2bo13bo$95b3o120b2o15bo$97bo$96bo129b2o$226b2o3$230b
3o$141b2o87bo$140b2o89bo$142bo10$142bo$141b2o$141bobo!

I reduced the cost further by three gliders.

Code: Select all

x = 303, y = 63, rule = B3/S23
71bo$72bo$70b3o20$124bo64b2o88bobo7b2o$2bo86bo33bo65b2o89b2o7b2o$obo
87bo32b3o154bo$b2o85b3o106b2o98b2o$8bo187bo2bo96bo2bo$8bobo185bo2bo96b
o2bo$8b2o184b2o4b2o92b2o4b2o$105b2o86bo8bo90bo8bo$104bo2bo77b2o6bo8bo
82b2o6bo8bo$105b2o78b2o4b2o7b2o4b2o77b2o4b2o7b2o$190bo8bo6b2o82bo8bo$
190bo8bo90bo8bo$87b3o101b2o4b2o92b2o4b2o$89bo103bo2bo96bo2bo$88bo104bo
2bo96bo2bo$194b2o15bo82b2o$210b2o$202b2o6bobo$202b2o4$71b3o$73bo$72bo
2$119b3o$119bo$120bo10$120b3o$120bo$121bo!

[GUYTU6J]

It is baffling how there has been a 7-glider synthesis for boat_with_leg_and_?-snake (xs15_35is0qm) since at least 2015...

Code: Select all

#N 15-101.rle
#O Mark D. Niemiec's life synthesis database, Thu Feb 19 02:00:33 2015
x = 148, y = 90, rule = B3/S23
130bo$128boo$129boo$$122bo$123bo$121b3o$125bo20bxx$125boo18bxbx$124bob
o16bxbbx$143b3x$$143bxxbx$143bxbxx$119bo$119boo$118bobo5b3o3bo$126bo4b
oo$127bo3bobo$118boo$117bobo$119bo15$43bo$41bobo$42boo$90bo$44bo46bo$
34bobo7bobo34bobo5b3o$35boo7boo36boo43bobo$35bo46bo45boo3bo$39bo10bo
77bobboo$40boo7bo30boo7boo41boo$39boo8b3o29boo5boo$80bo9bo15bx19bo19b
xx$65bxx18boo18bxbx17bobo17bxbx$6bobo54bxbbx16bobbo16bxbbx16bobbo16bx
bbx$7boo54b3x17b3o17b3x17b3o17b3x$7bo$9bo13bxxbx16boobo16bxxbx16boobo
16bxxbx16boobo16bxxbx$4boobbo14bxbxx16boboo6bo9bxbxx16boboo16bxbxx16bo
boo16bxbxx$3boo3b3o41boo$5bo46bobo$oo$boo$o16$6bo$5bo82bo$5b3o78bobo
30bo$26bxx18boo18bxx19boo17bxx12boo4boo18bxx$5bo19bxbx17bobo17bxbx37bx
bx11boo4bobo17bxbx$5boo19bx19bo17bxbx17boo3bo14bxbx17bobo16bxbbx$4bobo
34bo23bx19booboo15bx9b3o7bo17b3x$42boo40bo3bobo26bo$41boobboo69bo26bxx
bx$44bobo73b3o20bxbxx$46bo75bobboo$121bobboo3b3o$126bobbo$120bo9bo$
120boo$119bobo!

... and yet no one has uploaded these two 5-glider syntheses for xs18_m2s079koz11 and xs18_35a8czx65156 until I did in this job log.

Code: Select all

x = 63, y = 14, rule = B3/S23
5bo$6bo$4b3o10bo39bo$16bo39bo$16b3o26bo10b3o$3o43bo$2bo9bobo29b3o5bobo
$bo11b2o38b2o$13bo39bo$40b3o$42bo$21b2o18bo19b2o$20b2o38b2o$22bo39bo!

http://web.archive.org/web/202308180811 ... oz11/b3s23 reads:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs18_m2s079koz11 costs 6 gliders (true).
#CLL state-numbering golly
x = 24, y = 35, rule = B3/S23
23bo$21b2o$22b2o13$8bo$6b2o$2bo4b2o$obo$b2o4$11bo$10bo$10b3o$6b2o$
5bobo$7bo4$8b2o$9b2o$8bo!

http://web.archive.org/web/202308180811 ... 5156/b3s23 reads:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs18_35a8czx65156 costs 7 gliders (true).
#CLL state-numbering golly
x = 59, y = 23, rule = B3/S23
4bo$3bo$3b3o2$bo$2bo$3o2$44b2ob2o$3bo7bobo30bo3bo$4b2o5b2o32b3o$3b
2o7bo$47b3o$47bo2bo$48b2o4bo$52b2o$53b2o4$50b3o4bo$52bo3b2o$51bo4b
obo!

Then again, what is the script that collects all 5-glider syntheses for true objects on catagolue and arranges them in a stamp collection?

[GUYTU6J]

xs16_ggc2d96z146 in 11G based on this soup, featuring a rock tub catalysis

Code: Select all

x = 134, y = 43, rule = B3/S23
obo$b2o$bo$9bobo$9b2o$2b2o6bo119bo$3b2o124bo$2bo126b3o3$69bo59bo$68bob
o57bobo$69bo59bo2$13b2o4b2o52b2o4b2o$12bo2bo3b2o45b2o4bo2bo3b2o47b2o$
12bobo51b2o4bobo52bo2bo$13bo59bo53bobobo$128b2obo$132b2o$133bo$131bo$
131b2o2$69b2o$70b2o$69bo2$62b2o8b3o$61bobo8bo$63bo9bo10$82b3o$82bo$83b
o!

xs15_25a8421ego in 7G based on this soup; the resulting 2-glider reduction should transfer to xs16_25a8421eg8o and xs16_g88a52zg9icz01 among 300+ other still lives

Code: Select all

x = 24, y = 21, rule = B3/S23
18bo$19b2o$18b2o2$5bobo$6b2o10b2o$6bo10bobo$19bo3$22bo$22b2o$21bobo$b
2o$obo$2bo3$9bo$9b2o$8bobo!

xs16_wggkq23zc452 in 10G based on this soup

Code: Select all

x = 31, y = 16, rule = B3/S23
25bo$25bobo$25b2o2$16b2o11b2o$15bobo5bo4b2o$16bo5b2o6bo$22bobo$6bobo$o
6b2o5bo$b2o4bo5bobo$2o11b2o2$4b2o$3bobo$5bo!

Previous record that was referenced to in this post due to containing an fishhook edge-shooter:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs16_wggkq23zc452 costs 12 gliders (true).
#CLL state-numbering golly
x = 106, y = 21, rule = B3/S23
60bo39bo$60bobo35bobo$60b2o37b2o$7bo95b3o$8bo55bo$6b3o53b2o$63b2o
40bo$56b2o45b3o$9b2o44bo2bo43bo$9bobo32bo11bobo6b2o36bo$2bo6bo32bo
bo7bo4bo7bobo32b4o$obo40b2o6bobo11bo34bo$b2o48bo2bo46bo$52b2o44b3o
$45b2o51bo$3b3o40b2o$3bo41bo$4bo93b3o$48b2o53b2o$47bobo53bobo$49bo
53bo!

Exactly 50 still lives to go for 16-in-11 as listed below!

Code: Select all

"xs16_06agc93z2521","100000000000000013"
"xs16_0ci52zmq23","100000000000000013"
"xs16_0kc3213z34a4","100000000000000013"
"xs16_25icggozx1ac","100000000000000013"
"xs16_3loz122c826","100000000000000013"
"xs16_6421344og84c","100000000000000013"
"xs16_6421eozc8421","100000000000000013"
"xs16_8kih32qkzx1","100000000000000013"
"xs16_mk48a52z56","100000000000000013"
"xs16_ol3zw3215a4","100000000000000013"
"xs16_wok21e8zdb","100000000000000013"
"xs16_0358gzc48ge3","100000000000000012"
"xs16_08o6413z69k8","100000000000000012"
"xs16_0g8421eg84cz32","100000000000000012"
"xs16_0g88b5z4ajo","100000000000000012"
"xs16_0ggc93zmc1z11","100000000000000012"
"xs16_1784c842ak8","100000000000000012"
"xs16_1784cggc48c","100000000000000012"
"xs16_1784ozx122qk","100000000000000012"
"xs16_1784ozx342sg","100000000000000012"
"xs16_25a84215a8o","100000000000000012"
"xs16_25a842642ac","100000000000000012"
"xs16_2ego4431246","100000000000000012"
"xs16_31248gka248c","100000000000000012"
"xs16_31ke12kozw11","100000000000000012"
"xs16_32qk5b8o","100000000000000012"
"xs16_3hik8z1248go","100000000000000012"
"xs16_3loz122628c","100000000000000012"
"xs16_3loz1226io","100000000000000012"
"xs16_3lozx354213","100000000000000012"
"xs16_3lozxj5ozx11","100000000000000012"
"xs16_4a4o79ozw121","100000000000000012"
"xs16_5bo8ge2z32","100000000000000012"
"xs16_69jzw23c4go","100000000000000012"
"xs16_6ik8a52z641","100000000000000012"
"xs16_8e1248gzwad11","100000000000000012"
"xs16_8e12koz04a43","100000000000000012"
"xs16_drz32qm","100000000000000012"
"xs16_g8e123z1qm","100000000000000012"
"xs16_ggdbzmdz11","100000000000000012"
"xs16_jhke1e8z1","100000000000000012"
"xs16_kq23z124871","100000000000000012"
"xs16_mk48a52z146","100000000000000012"
"xs16_ra248a6z023","100000000000000012"
"xs16_ra248goz056","100000000000000012"
"xs16_wgjl8zg9icz01","100000000000000012"
"xs16_wj9c826z6221","100000000000000012"
"xs16_xj5ozg8jc1z01","100000000000000012"
"xs16_xok21e8zc93","100000000000000012"
"xs16_y0j96zg4c32z11","100000000000000012"

[dvgrn]

xs16_ggc2d96z146 in 11G based on this soup, featuring a rock tub catalysis

Code: Select all

x = 134, y = 43, rule = B3/S23
obo$b2o$bo$9bobo$9b2o$2b2o6bo119bo$3b2o124bo$2bo126b3o3$69bo59bo$68bob
o57bobo$69bo59bo2$13b2o4b2o52b2o4b2o$12bo2bo3b2o45b2o4bo2bo3b2o47b2o$
12bobo51b2o4bobo52bo2bo$13bo59bo53bobobo$128b2obo$132b2o$133bo$131bo$
131b2o2$69b2o$70b2o$69bo2$62b2o8b3o$61bobo8bo$63bo9bo10$82b3o$82bo$83b
o!

10G turns out to be possible, in two stages instead of three, by replacing the temporary rock with a plain old V spark (or rather, its five-cell parent) and the right-hand block with a glider:

Code: Select all

x = 109, y = 48, rule = B3/S23
76bo$77bo$75b3o2$96bobo$96b2o$97bo11$13bo$11b2o$2bo9b2o76b2o$obo80b2o
4bo2bo$b2o2b3o75b2o4bobo$7bo82bo$6bo6$86b2o18b3o$87b2o17bo$86bo20bo2$
79b2o8b3o$78bobo8bo$80bo9bo10$99b3o$99bo$100bo!

[May13]

I recently remembered that there are two 15-bit still lifes that cost 11 gliders. I looked at xs15_358ge12ko, there are no new soups yet. Then I decided to look for syntheses of similar still lifes, and I was unexpectedly lucky. The xs19_358ge12koz311 synthesis contains two components with 5 gliders each (first and third), from which xs15_358ge12ko can be made:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs19_358ge12koz311 costs 14 gliders (true).
#CLL state-numbering golly
x = 116, y = 29, rule = B3/S23
5bo$4bo$4b3o$98bo$14bo84bo5bo$13bo45bobo35b3o3bobo$o12b3o43b2o43b
2o4bo$b2o57bo50bo$2o107b3o$47bo55bo$46bobo53bobo8b3o$2bo44bo55bo9b
o$bo46b3o8bo35b2o7b3o7bo$b3o2b2o43bo5b2o35bobo10bo$6bobo41bo7b2o
36bo9bobo$6bo40bobo53bobo2bo$47b2o54b2o3b2o$60b2o$60bobo$60bo7$61b
2o$61bobo$61bo!

Code: Select all

x = 53, y = 22, rule = B3/S23
42bo$43bo$41b3o$50bo$50bobo$50b2o$7bobo$2b2o3b2o$2bobo3bo36bo$2bo36b2o
3bobo3bo$13b2o24bo3bobo3bo$13bobo24bo2bo5b3o$3o10bo27bobo$2bo39bo$bo$
47bo$47bobo$47b2o2$9b2o33b2o$9bobo31bobo$9bo35bo!

Only one still life left, xs15_31248a51246.
Cheaper synthesis of xs19_358ge12koz311 (13G):

Code: Select all

x = 116, y = 32, rule = B3/S23
5bo$4bo$4b3o$98bo$14bo84bo5bo$13bo83b3o3bobo$o12b3o88b2o4bo$b2o108bo$
2o107b3o$47bo55bo$46bobo53bobo8b3o$2bo44bo55bo9bo$bo46b3o10bo33b2o7b3o
7bo$b3o2b2o43bo10bo31bobo10bo$6bobo41bo9b3o33bo9bobo$6bo40bobo53bobo2b
o$47b2o54b2o3b2o$61b3o$63bo$62bo10$43b2o$42bobo$44bo!

[Chris857]

Minus 1G to xs26_0caar4kozc97074 (now 12G) through cheaper cleanup. Found while trying to get better clearance (which I did with this) for a hassler synth.

Code: Select all

x = 168, y = 81, rule = B3/S23
11bobo$12b2o$12bo8$bo$2bo$3o11$45b2o5bo$45bobo3bobo$46bobo2bo2bo$47bo
4b2o3$163bo$163b3o$161b2o3bo$160bo2b4o$160b2obo$163bob2o$163bobo$162b
2obobo$166b2o3$160b2o$160b2o3$164b3o$164bo$165bo14$17b2o$18b2o$17bo4$
7b2o$8b2o$7bo5$84bo$83b2o$3b2o78bobo$2bobo$4bo$98b2o$97b2o$99bo!

Previous synth for reference (since I found I still need this one's clearance in at least one oscillator synth) [note: typo fix]

Code: Select all

x = 169, y = 78, rule = B3/S23
11bobo$12b2o$12bo8$bo$2bo$3o11$45b2o5bo$45bobo3bobo$46bobo2bo2bo$47bo
4b2o2$154bo$154bobo$154b2o$161bo$151b2o6b3o$151b2o5bo3b2o$158b4o2bo$161b
ob2o$158b2obo$159bobo$157bobob2o3bo$157b2o7bobo$166b2o2$163b2o$163b2o
17$17b2o$18b2o$17bo4$7b2o$8b2o$7bo5$84bo$83b2o13b3o$3b2o78bobo12bo$2b
obo94bo$4bo!

[GUYTU6J]

This soup suggests an 8-glider synthesis for a length-3 induction coil in some expensive 17-cell still lives like xs17_0628c93z2553 and xs17_628c93z3156.

Code: Select all

x = 193, y = 111, rule = B3/S23
11bo79bo73bo5bo$12b2o78b2o69bobo6b2o$11b2o5bo72b2o5bo65b2o5b2o5bo$16bo
bo6bo70bobo6bo70bobo6bo$2bo14b2o5bo57bo14b2o5bo54bo17b2o5bo$obo21b3o
53bobo21b3o53bo23b3o$b2o78b2o75b3o$9bobo77bobo77bobo$10b2o78b2o78b2o$
10bo79bo79bo8$5b2o78b2o78b2o$4bobo77bobo77bobo$6bo79bo79bo2$30b2o78b2o
78b2o$30bobo77bobo77bobo$30bo51b3o25bo79bo$10b2o72bo5b2o78b2o$9bobo71b
o5bobo77bobo$11bo79bo79bo2$26b3o77b3o77b3o$26bo79bo79bo$27bo79bo79bo
47$83bo$84bo$82b3o$91bo79bo$92b2o78b2o$91b2o5bo72b2o5bo$86bo9bobo6bo
60bo9bobo6bo$84bobo10b2o5bo59bobo10b2o5bo$85b2o17b3o58b2o17b3o2$89bobo
77bobo$90b2o78b2o$90bo79bo7$81b2o75b3o$80bobo77bo$82bo76bo2$164b2o$
110b2o51bobo24b2o$110bobo52bo24bobo$110bo79bo$90b2o78b2o$89bobo77bobo$
91bo79bo2$106b3o77b3o$106bo79bo$107bo79bo!

Like another induction coil, this one is produced by a beehive predecessor acting on a forming carrier.

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs17_0628c93z2553 costs 15 gliders (true).
#CLL state-numbering golly
x = 138, y = 43, rule = B3/S23
2bo$3b2o$2b2o$34bo$33bo$33b3o5bo$40bo$obo37b3o$b2o$bo$46bo$46bobo$
46b2o7$122bo$123b2o$122b2o2$84bo51bo$79b2o2bobo45b2o2bobo$79bo3bob
o34b3o8bo3bobo$81bob2o37bo10bob2o$80b2o39bo10b2o$81bo51bo$79bo43b
2o6bo$79b2o43b2o5b2o$123bo$83b2o$82bo2bo$15b3o65b2o$15bo71b2o$11b
2o3bo70bobo32b3o$10bobo74bo36bo9b3o$12bo8b2o100bo10bo$21bobo111bo$
21bo17b3o$39bo$40bo!

Later I transferred the fast component to xs11_178c4go and xs13_3pczw1156.

Code: Select all

x = 189, y = 117, rule = B3/S23
25bobo77bobo77bobo$25b2o78b2o78b2o$26bo79bo79bo$12bo79bo79bo$10bobo77b
obo77bobo$11b2o78b2o72bo5b2o$28bo79bo54bobo22bo$26b2o78b2o56b2o20b2o$
27b2o78b2o78b2o$2bo79bo76bo$obo77bobo77bo$b2o78b2o75b3o3$22bo79bo79bo$
22bobo77bobo77bobo$22b2o78b2o78b2o6$5b2o78b2o78b2o$4bobo5bo71bobo5bo
71bobo5bo$6bo5b3o71bo5b3o71bo5b3o$15bo79bo79bo$14b2o78b2o78b2o2$82b3o$
84bo$22b2o59bo18b2o78b2o$22bobo77bobo77bobo$22bo79bo79bo2$4b3o77b3o77b
3o$6bo79bo79bo$5bo79bo79bo44$105bobo$105b2o$83bo22bo$84bo7bo$82b3o5bob
o$91b2o$108bo$106b2o$86bo20b2o$84bobo$85b2o4$102bo$102bobo$102b2o5$81b
2o$80bobo$82bo9bo$92b3o$95bo$94b2o4$102b2o$102bobo$102bo2$84b3o$86bo$
85bo!

Code: Select all

x = 114, y = 37, rule = B3/S23
30bo79bo$29bo79bo$29b3o77b3o$82bo$10bobo70b2o5bobo$11b2o69b2o7b2o$11bo
79bo$31bo79bo$31bobo77bobo$4bobo24b2o51bobo24b2o$5b2o78b2o$5bo79bo11$
25bobo77bobo$25b2o78b2o$26bo79bo2$bo8bo3bobo64bo8bo3bobo$b2o8bo2b2o65b
2o8bo2b2o$obo6b3o3bo64bobo6b3o3bo2$21b2o78b2o$20b2o78b2o$22bo79bo2$24b
o79bo$23b2o78b2o$23bobo77bobo!

There are still other still lives outside of the scope of the reaction, such as xs17_039c826z3552. This particular one can be solved in 9G based on this soup.

Code: Select all

x = 29, y = 44, rule = B3/S23
6bo$4b2o$5b2o$2bo$2o$b2o8bo$11bobo$11b2o3$9bo$8bo$8b3o4$3bo$2b2o$2bobo
2$14b2o$13b2o$15bo3$11b3o$11bo$12bo14$26b3o$26bo$27bo!

Unrelated note: now that xs16_09fgkcz253 is somehow down to 5G, xs18_ckgf9zx35a4 is down from 9G (made by me) to 7G.

Code: Select all

x = 9, y = 15, rule = B3/S23
5bo$5bobo$bo3b2o$2bo$3o3$4bo$3bobo$4b2o$6b2o$4b2o2bo$5bob2o$5bo$4b2o!

EDIT: xs17_cahege2z023 in two-directional 11G

Code: Select all

x = 180, y = 44, rule = B3/S23
12bo$11b2o74bo$7bo3bobo72bobo88bo$7b2o76bo2bo3bo80b2obobo$6bobo77b2o3b
obo68bo11bobo2bo$91bobo68bo11bobob2o$92bo69bo12bobo$177bo$b2o12bo143b
2o16b2o$obo11b2o142bobo$2bo11bobo143bo3$172b3o3$96bo$95b2o$95bobo69b3o
2$82b2o$81bobo6b3o77b3o$83bo8bo77bo$91bo79bo2$105b3o$105bo$106bo14$
118b2o$118bobo$118bo!

[May13]

There are currently 9 natural (from C1) 46-bit still lifes, of which 7 have known syntheses. Syntheses of 2 remaining still lifes:

Code: Select all

x = 131, y = 114, rule = B3/S23
81bo$82bo$10bo69b3o$9bo$5bo3b3o73bo$6bo77bo$4b3o77b3o2$9bo$7b2o74bo$8b
2o71bobo$82b2o4$125b2o$124bobo$3bo2bob2o33bo2bo2bo33bo2bo2bo33bo5bo$3b
4ob2o33b7o33b7o33b7o2$b9o31b9o31b9o31b9o$o9bo29bo9bo29bo9bo29bo9bo$b9o
31b9o31b9o31b9o2$3b4ob2o33b4ob2o33b7o33b7o$3bo2bob2o33bo2bob2o33bo2bo
2bo33bo2bo2bo6$122b2o$48b2o71bobo$47b2o74bo$49bo2$44b3o77b3o$46bo77bo$
45bo3b3o73bo$49bo$50bo69b3o$122bo$121bo39$34bobo$34b2o$29bo5bo$27b2o$
28b2o$9bo$10bo$8b3o$25bo67bobo$25bobo65b2o$4bo20b2o49bo17bo$5b2o68bobo
b2o7bo$4b2o69bobobobo6bo$16b3o57b2obob3o4bo$18bo60bo4bo$11b3o3bo61b6o$
13bo11bo$12bo12bobo51b6o$25b2o52bo4bo$76b2obob3o4bo$75bobobobo6bo$16b
3o56bobob2o7bo$18bo57bo17bo$17bo75b2o$93bobo4$7b2o19b2o$8b2o17b2o$7bo
21bo5bo$34b2o$34bobo!

New syntheses of 3 22-bit still lifes:

Code: Select all

x = 156, y = 138, rule = B3/S23
87bo$80bo6bobo$81b2o4b2o$80b2o4$82b2o$82bobo$82bo2$131bo$b2o68b2o57bob
o$o2bo66bo2bo55bo2bo$b2o68b2o57b2o5b2o$137b2o2$140b2o$130b2o8bobo$129b
obo11bo$131bo9b2obo$140bo2bobo$139bobo2bo$140bob2o9bo$141bo11bobo$142b
obo8b2o$143b2o2$146b2o$92b2o52b2o5b2o$91bo2bo57bo2bo$92b2o58bobo$25b2o
126bo$25bobo$25bo56bo$18b2o60bobo$17bobo61b2o$19bo3$83b2o$76b2o4b2o$
75bobo6bo$77bo50$67bo$40bobo23bo$41b2o23b3o$41bo59bo$102bo$100b3o$113b
2o$105bo8bo$106bo5bobob2o$104b3o5b2obo2bo$115bo2bo$115b2ob2o$116bobo$
45b2o69bobo$36b2o6bobo70bo$35bobo8bo$37bo64b3o$104bo$55b2o46bo$35b2o
17bobo$34bobo19bo$36bo5$55bo$54b2o$50bo3bobo$50b2o$49bobo2$60b3o$60bo$
61bo8$64b2o$64bobo$64bo!

[KtT]

xs36_4aaba9egmicz69d11321 in 11G, down from 14G:

Code: Select all

x = 208, y = 153, rule = B3/S23
175bobo6bo$175b2o7bobo$176bo7b2o17$184bo$182b2o$183b2o57$142bobo3bo$143b
2o3bobo$143bo4b2o$o$b2o$2o4$131bo23b2o$130bobo22bobo$8bo121bobo22bo$8b
2o113b2o6bo$7bobo112bo2bo$123b2o$11b3o$11bo$12bo33$97b2o$98b2o$97bo20$
206b2o$205b2o$207bo!

[May13]

16-in-11: syntheses of two still lifes (xs16_4a4o79ozw121 in 10G and xs16_1784cggc48c in 9G):

Code: Select all

x = 233, y = 149, rule = B3/S23
o119bo$b2o118b2o$2o118b2o4$3bo119bo$4bo119bo$2b3o39bo77b3o39bo$43bo
119bo$43b3o117b3o8$32bo119bo$30b2o118b2o$19bo11b2o106bo11b2o$20b2o118b
2o$19b2o5b2o111b2o5b2o72bo$26bobo117bobo70bobo4b2o$26bo119bo73bo2bobo
2bo$218bobob2obobo$217bobobo4bo$218bo2bo8b3o$221b2o7bo$231bo2$40b2o4bo
113b2o4bo$40bobo2b2o113bobo2b2o$40bo4bobo112bo4bobo4$b2o118b2o$2b2o
118b2o$bo119bo6$61b2o$61bobo$61bo60$7bo$8bo$6b3o64bo$30bo43bo$30bobo
39b3o$6bo23b2o$7bo$5b3o$76b3o2$74bo5bo$74bo5bo$74bo5bo$38bo$17bo18b2o
38b3o$18b2o17b2o$17b2o3$12b2o7b2o$11bobo7bobo$13bo7bo3$81b2o$78bobo2bo
b2o$77bob2o2b2obo$77bo$76b2o11$15b2o$16b2o$15bo!

42 16-bit still lifes left.
xs22_3586178bqic in 8G and xs21_69bo8go8br in 7G:

Code: Select all

x = 105, y = 114, rule = B3/S23
8bo$9b2o$8b2o5$2bo$obo$b2o15bo$17bo$17b3o3$17b2o$16b2o$18bo$23b3o$23bo
$24bo7$19bo$18b2o$18bobo3$5b2o$4bobo$6bo$27b2o$27bobo$27bo45$95b2o$94b
o2bo$22bo71bob2o$22bobo68b2o$22b2o70bo$93bo$93b2o$94bo$94bob2o$8b3o2b
2o78b2ob2o$10bob2o$9bo4bo5$97b2o$96bo2bo$97b2o2$102b2o$102bobo$102bo2$
25b3o$9b2o14bo$10b2o14bo$9bo3$3b2o$4b2o$3bo!

[affamatodidio]

Pathway for an unsynthed xs60:

Code: Select all

x = 21, y = 30, rule = B3/S23
7b2o$7b2o3$2bo$bobo$bo2bo$2b2o8b2o$10bo2bo$10b3o4$b2o15bo$o2bo13bobo$
bobo13bo2bo$2bo15b2o4$8b3o$7bo2bo$7b2o8b2o$16bo2bo$17bobo$18bo3$12b2o
$12b2o!

More unsynthed:

Code: Select all

x = 15, y = 30, rule = B3/S23
7bo3bo$6bobo2bo2bo$5b2ob2o2b3o$5b2o2bo$6bob2o$8bo4$6bo$5bobo$4bo3bo3b
o$5bobo3bobo$6bo4b2o$12bo$2bo$2b2o4bo$bobo3bobo$2bo3bo3bo$7bobo$8bo4$
6bo$5b2obo$5bo2b2o$3o2b2ob2o$o2bo2bobo$3bo3bo!

reduction to an xs46 is almost guaranteed

Code: Select all

x = 122, y = 61, rule = B3/S23
11bob2o23b2o$11b3o24b2o$12bo25b3o$35bo78bo$34bobo4bob2o70b5o$19bo14bo
bo4b3o71b3o$18bobo14bo6bo71bo$18bobo91b3o$7bo11bo86bo7bo$7bo97bobo$7b
o4b2o72b2o17bobo2b2o$11bo2bo52b2obo14bo2bo17bo3b2o$3b3o6bobo54b2o8b2o
4bobo29b2o$13bo56bo2bo5bobo4bo29b3o$7bo58bo4bobo5bo2bo25b3o$6bobo6b3o
47bobo4b2o8b2o24b2o$6bo2bo54bo2bo14bob2o29b2o3bo$7b2o4bo51b2o48b2o2bo
bo$13bo105bobo$bo11bo98bo7bo$obo109b3o$obo41bo6bo60bo$bo41b3o4bobo56b
3o$42b2obo4bobo54b5o$51bo60bo$8bo37b3o$7b3o37b2o$6b2obo37b2o8$59b2o$58b
o2bo$59b2o2$59b2o$59b2o3$15bo$15bo43bo$15bo11bo31b2o$5b2o4bo15bo18b2o
11bo$4bo2bo3bo15bo18b2o$5b2o4bobo9b2o36b2o$12b2o9bobo4b2o17bo11b2o$9b
o15bo3bo2bo15b2o$9bo15bo4b2o17bo$9bo11bo$21bo$21bo$48b2o$48b2o2$48b2o
$47bo2bo$48b2o!

Not confident in either of these xs46 possibilities:

Code: Select all

x = 86, y = 40, rule = B3/S23
75bo6bobo$75bo6bo2bo$75bo9bo$81bo2bo$81b3o4$74bo$73bo$74b3o$3bo6bo63b
3o$2bo2b2o4b2o62b2o$3b3obo2b2o63b2o$4bo3bo66b2o$7bo36bo$11bo32bo$b2o7b
obo31bo$obo7b2o$bo$5bo$4bo3bo$b2o2bob3o70bo$2o4b2o2bo69bo$2bo6bo70bo$
48b2o$48b2o$48b2o$48b3o$48b3o$51bo$50bo4$41b3o$40bo2bo$39bo9bo$39bo2b
o6bo$40bobo6bo!

[confocaloid]

xs22_ok461arz624311 in 17 gliders based on a C2_2 soup, previously unsynthed

Code: Select all

x = 252, y = 92, rule = B3/S23
108bobo$109b2o$91bo17bo$92bo$90b3o2$121bo$119bobo$120b2o16$69bo$70bo$
68b3o8$200bo$201bo$145bo53b3o$144bo$144b3o2$29bo$27b2o$28b2o131b3o58bo
bo$130bo30bo60b2obo$130bo31bo62b3o10b2o$130bo91b2o4bo9b2o$120bo90b2o9b
o4b2o$88bo31bo90b2o10b3o$89bo30bo104bob2o$27b3o57b3o136bobo$27bo$28bo
2$104b3o$106bo$105bo143b3o$249bo$250bo8$180b3o$180bo$181bo3$3o$2bo$bo
11$129b2o$129bobo$129bo2$158b3o$158bo$141bo17bo$140b2o$140bobo!

Soup:

Code: Select all

#C https://catagolue.hatsya.com/hashsoup/C2_2/m_ZmHyh2n3ncUG7179874/b3s23
#C https://catagolue.hatsya.com/object/xs22_ok461arz624311/b3s23
x = 31, y = 32, rule = B3/S23
bbbbbbbbbbbbbbbbboooboobbbobobb$
bbbbbbbbbbbbbbbbobbbooobobbboob$
bbbbbbbbbbbbbbbbboobobobbboobob$
bbbbbbbbbbbbbbbbobobbooobooooob$
bbbbbbbbbbbbbbbbooboooobbooobbo$
bbbbbbbbbbbbbbbobboboboobooobob$
bbbbbbbbbbbbbbboboobbbobbbobbob$
bbbbbbbbbbbbbbbbbbobobobboooobo$
bbbbbbbbbbbbbbbbboobobbbooooboo$
bbbbbbbbbbbbbbbbbbbboobobbbooob$
bbbbbbbbbbbbbbbooboobboboobbbbo$
bbbbbbbbbbbbbbbobboobooboboooob$
bbbbbbbbbbbbbbbooobobobbooboooo$
bbbbbbbbbbbbbbboooobbbooobbobob$
bbbbbbbbbbbbbbbboobooobbobboooo$
bbbbbbbbbbbbbbboobbbboobooobobb$
bboboooboobbbboobbbbbbbbbbbbbbb$
oooobbobboooboobbbbbbbbbbbbbbbb$
bobobbooobbboooobbbbbbbbbbbbbbb$
ooooboobbobobooobbbbbbbbbbbbbbb$
boooobobooboobbobbbbbbbbbbbbbbb$
obbbboobobbooboobbbbbbbbbbbbbbb$
booobbboboobbbbbbbbbbbbbbbbbbbb$
ooboooobbboboobbbbbbbbbbbbbbbbb$
oboooobbobobobbbbbbbbbbbbbbbbbb$
bobbobbbobbboobobbbbbbbbbbbbbbb$
boboooboobobobbobbbbbbbbbbbbbbb$
obbooobbooooboobbbbbbbbbbbbbbbb$
booooobooobbobobbbbbbbbbbbbbbbb$
boboobbboboboobbbbbbbbbbbbbbbbb$
boobbbobooobbbobbbbbbbbbbbbbbbb$
bbobobbboobooobbbbbbbbbbbbbbbbb!

[affamatodidio]

Attempts at reductions of xs22

Code: Select all

x = 27, y = 28, rule = B3/S23
22bo2$19b3o$24bo$23b3o$22bo3bo$22b2ob2o$17bo$17bo$17bo16$2o$b2o$o!

Code: Select all

x = 59, y = 22, rule = B3/S23
45bo$44bobo$44bobo$45bo7bo$50b2obo3b2o$50bo2bo3b2o$49bo2b2o$11b3o36bo
b2o$13b2o36bo2$9bo2bo8bo$9b3o8b2o$20bobo$41bo$39b2obo$obo36b2o2bo$b2o
8b3o20b2o3bo2bo$bo8bo2bo20b2o3bob2o$39bo7bo$8b2o36bobo$9b3o34bobo$47b
o!

Code: Select all

x = 35, y = 34, rule = B3/S23
30bo$30bo$26b2o2bo$25b3o$27bo4b3o2$30bo$30bo$30bo4$4b2o17bo$4b2o5bo11b
o$11bo11bo$11bo$19b3o3b3o$7b3o3b3o$23bo$11bo11bo$11bo11bo5b2o$11bo17b
2o4$4bo$4bo$4bo2$3o4bo$7b3o$4bo2b2o$4bo$4bo!

[qqd]

Possible pathway to the yet unsynthesized xs32_w6a8o6hv04aa4z651343, just need a suitable beehive edge shooter:

Code: Select all

x = 25, y = 16, rule = B3/S23
bo$2bo$3o19bo$21bobo$21bobo$8b2o12bo$9bo$9bob2o7b5o$7b3o2bo7bo3bo$6bo
3b2o10b2o$6b4o8b4o$9bo7bo3bo$6b2obobo6b2obobo$7bo2b2o7bo2b2o$5bobo9bob
o$5b2o10b2o!
[[ STOP 26 ]]

[EvinZL]

Possible pathway to the yet unsynthesized xs32_w6a8o6hv04aa4z651343, just need a suitable beehive edge shooter:

Code: Select all

x = 25, y = 16, rule = B3/S23
bo$2bo$3o19bo$21bobo$21bobo$8b2o12bo$9bo$9bob2o7b5o$7b3o2bo7bo3bo$6bo
3b2o10b2o$6b4o8b4o$9bo7bo3bo$6b2obobo6b2obobo$7bo2b2o7bo2b2o$5bobo9bob
o$5b2o10b2o!
[[ STOP 26 ]]

this 3g inserter works

Code: Select all

x = 40, y = 31, rule = B3/S23
38bo$37bo$37b3o3$obo$b2o17bo$bo17bo$19b3o2$20bo$19b2o$19bobo8$19b2o$
20bo$20bob2o$18b3o2bo$17bo3b2o$17b4o$20bo$17b2obobo$18bo2b2o$16bobo$
16b2o!

[GUYTU6J]

Possible pathway to the yet unsynthesized xs32_w6a8o6hv04aa4z651343, just need a suitable beehive edge shooter...

this 3g inserter works
...

I collected some 3G beehive inserters last year when working on oscillator synthesis.
---
The 8-glider xs15_259m86246 synthesis inspires a number of others with 3b2o$obo2bo$obobo$bobo$2bo! in the final product. Many are reductions...

Code: Select all

x = 568, y = 44, rule = B3/S23
74bo$74bobo$74b2o8$62bo7bo431bobo$63b2o6b2o429b2o$62b2o6b2o400bo30bo$
473b2o$72bo399b2o42bobo$71bo105bobo336b2o$71b3o104b2o2bobo73bobo177bob
o76bo40bobo$178bo4b2o59bo13b2o178b2o42bo75b2o$75b3o105bo58bobo14bo103b
o75bo43bo6bo68bo$o53bo22bo165b2o119bo64bo51b3o5bo59bo$b2o52b2o19bo13bo
167bo48bo54b3o13bo51bo58b3o58bo$2o52b2o33bo59bo48bo60bo45bobo71bo48b3o
117b3o$19bo58b2o9b3o57bobo47b2o56b3o46b2o69b3o58bobo117bobo$20b2o55b2o
49bobo18b2o42bo4b2o239b2o47bo70b2o$19b2o58bo44bo3b2o64b2o10bo59bobo
117bobo50bo46bobo70bo$2bobo20bo99bo3bo4b3o52b2o2b2o10bo60b2o118b2o57bo
41b2o76bo$3b2o19bo98b3o62bobo14b3o59bo105b2o12bo57bobo87bobo27bobo$3bo
20b3o163bo181bo2bo69b2o89b2o27b2o$127bo10bo108bo3bobo64bo53bobo123bo
37bo$127b2o8bobo39b3o66bo2b2o64bobo53bo123bobo$7b2o117bobo7bobo42bo2b
3o59b3o3bo63bobo177bobo$6bobo128bo42bo5bo130bo51b3o49b2o74bo43b2o$8bo
8b2o166bo116bo119b2o3b2o8bo104b2o3b2o8bo$18b2o176b2o104b2o117bo4bobo8b
2o102bo4bobo8b2o$17bo179b2o56b3o43bobo71b3o50bo7bobo109bo7bobo$196bo
60bo69b3o47bo$4bo251bo70bo48bo$4b2o66b2o254bo92b2o116bo13bo$3bobo67b2o
108b3o111bo19b2o103b2o115b2o11b2o$58bo13bo112bo111b2o3b2o13bobo101bo
116bobo11bobo$58b2o60bo63bo111bobo2bobo13bo$57bobo60b2o181bo9b2o118b3o
$119bobo190b2o119bo$314bo119bo!

... and even at the same cost, a synthesis component on barge can be obtained.

Code: Select all

x = 88, y = 35, rule = B3/S23
77bobo$77b2o$54bobo21bo$55b2o$55bo7$86bo$2bo9bo12bobo57bo$obo8bo13b2o
40bo17b3o$b2o8b3o12bo41bo$66b3o2$63bo$5bo57b2o$5bobo54bobo$o4b2o6bo59b
o$b2o9bobo57bobo6bo$2o9bobo57bobo6b2o$12bo59bo7bobo$9b3o$9bo60b5obo$
70bo2bob2o6$49b2o$48bobo$50bo!

I believe there are more possible fast components for the left side.

[Chris857]

xs17_0696kk8z3113 in 8G, down from 11G, from gen 694 of this soup.

Code: Select all

x = 120, y = 50, rule = B3/S23
8bo$9bo$7b3o8$3bo$bobo$2b2o10$99b2o$99b2o$92b2o$88b2o2bo$87bo2bobo$88b
2o2b2o$89bobo5bo$89bobo5bo$90bo6bo2$19bo$18bobo$18bobo$19bo3$6b2o$bo5b
2o$b2o3bo$obo$118bo$117b2o$117bobo3$48bo$47b2o$47bobo!

Previous synthesis

Code: Select all

x = 118, y = 23, rule = B3/S23
105bo$106bo$104b3o$109b2o$40bo56bo10bo2bo$38bobo57bo10b2o$39b2o55b3o7b
o$106bo$100b2o4bo$100b2o7b2o$108bo2bo$56bobo50b2o2b3o$56b2o7bo$57bo5b
2o$48b3o13b2o45bo2bo$50bo60b4o$49bo65b2o$113bo3bo$obo41b3o65bob3o$b2o
43bo3bo6b3o52bobo$bo3b3o37bo3bobo7bo2bobo48bo$5bo44b2o6bo3b2o$6bo56bo
!

Edit: and down to 7G.

Code: Select all

x = 19, y = 19, rule = B3/S23
8bobo$9b2o$9bo3$2bo$obo$b2o4b3o3$5b2o$5b2o3$16b2o$4bo11bobo$3bobo10bo
$3bobo$4bo!

[GUYTU6J]

xs17_0696kk8z3113 in 8G, down from 11G

Let's go for the more expensive 17-cell still lives; I wonder if we can manage 17-in-13 or even 12 [fitting in the n-in-(n-5) scheme]. A fresh example: xs17_069la8oz2521 in 9G based on this soup (may be improved to 8G with a tricky 2-glider cleanup)

Code: Select all

x = 42, y = 24, rule = B3/S23
39bo$39bobo$10bo28b2o$8bobo$9b2o8$5bobo$b2o2b2o$obo3bo$2bo$17bobo$17b
2o$9bo8bo$8b2o$8bobo$21b2o$21bobo$21bo!

Meanwhile this soup suggests a 10-glider synthesis compoent adding 13 cells to a duoplet end, shown with a tub:

Code: Select all

x = 27, y = 24, rule = B3/S23
13b2o$7bo4bo2bo$6bobo3bo2bo$7bo5b2o3$25b2o$24b2o$8b2o16bo$7bobo$b2o5bo
$obo$2bo5$12b3o$12bo$13bo$17b3o$9b3o5bo$11bo6bo$10bo!

Previous record:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs17_069la8oz2521 costs 14 gliders (true).
#CLL state-numbering golly
x = 127, y = 60, rule = B3/S23
114bo$106bo8b2o$104bobo7b2o$105b2o3$114bobo3bo$115b2o3bobo$115bo4b
2o5$109b2o2b2o$108bo2bo2bo10bo$108bobob2o10b2o$109bobo12bobo$111bo
$111b2o2$39bo$38bo8bo$38b3o5bo$46b3o3$39b2o$40b2o$39bo3$45bo9bobo$
46b2o7b2o$45b2o9bo$2bo37bo$obo36bobo$b2o36bo2bo$5b3o32b2o$5bo65b2o
$6bo64bobo$71bo17$70b2o$70bobo$70bo!

[Chris857]

xs17_0696kk8z3113 in 8G, down from 11G

Let's go for the more expensive 17-cell still lives

In the case above, I was mostly looking for better clearance to synthesize the p41 pi hassler, it being rather cheaper was a nice side benefit.