Martin Grant's recent slow component allows to reduce the cost of another still life from 12G to 9G:
Code: Select all
x = 98, y = 23, rule = B3/S23
10bo$9bo38bo38bo$9b3o35bobo36bobo$48bobo36bobo$5b3o42bo38bo$obo2bo43bo
38bo$b2o3bo42b2o31b2o4b2o$bo81bo$5bo37bo39bobo$5b2o36b2o39b2o$4bobo35b
obo$47b3o$47bo39b3o2b2o$48bo40bob2o$88bo4bo6$95b3o$95bo$96bo!
Edit: another xs15, 9G for construction + 2G for cleanup (maybe 1G cleanup is possible here?):
Code: Select all
x = 81, y = 79, rule = B3/S23
19bo$17bobo$18b2o14$74bobo$74b2o$75bo3$37bo$38b2o$37b2o33bo$71bo$71b3o
19$79bo$63b2o13b2o$63bobo12bobo$37b2o24bo$36bobo$38bo2$74b3o$74bo$75bo
7$74b2o$74bobo$74bo$48b2o$47bobo$49bo11$bo$b2o$obo!
Edit 2: Here's a 1G cleanup:
Code: Select all
x = 59, y = 50, rule = B3/S23
52bobo$52b2o$53bo3$15bo$16b2o$15b2o33bo$49bo$49b3o19$57bo$41b2o13b2o$
41bobo12bobo$15b2o24bo$14bobo$16bo2$52b3o$52bo$53bo7$52b2o$52bobo$52bo
$2o24b2o$b2o22bobo$o26bo!
Edit 3: partial for 14th still life, just need 2G cleanup (see Edit 4), it's easiest in generations 170-210:
Code: Select all
x = 50, y = 61, rule = B3/S23
2bo$obo$b2o26$39b3o$39bo$40bo$34b2o$35b2o$34bo$25bo$24bobo10b3o$25bo
11bo$38bo19$14b3o$16bo$15bo32bo$47b2o$47bobo!
Edit 4: Done:
Code: Select all
x = 98, y = 81, rule = B3/S23
12bo$10bobo$11b2o26$49b3o$49bo$50bo$44b2o$45b2o$44bo$35bo$34bobo10b3o$
35bo11bo$48bo19$24b3o$26bo$25bo32bo$57b2o$57bobo15$96b2o$95b2o$97bo$3o
$2bo$bo!
Edit 5: 15th from 28 still lifes, in 11G:
Code: Select all
x = 279, y = 28, rule = B3/S23
200b2o66bobo$200b2o67b2o$194b2o73bo$194b2o2$187bo$187bo$187bo2$213b3o$
276bo$275bobo$102b2o171bo2bo$3bo98b2o172b2o$2bo93b2o103b2o$2b3o33bo57b
2o102b2o$39bo74bo87bo67b2o$6b2o29b3o49bo25bo7bo145bobo$6bobo45b2o33bo
23b3o7bobo67b2o74bo$3o3bo47b2o33bo33b2o69b2o74bo$o47b2o143bo77bo$bo46b
2o220b2o$270bo$165bo101b2obo$165b2o100bobo$37b2o125bobo$36bobo$38bo!
Edit 6: Another partial, need 1G cleanup (see Edit 7):
Code: Select all
x = 100, y = 51, rule = B3/S23
57bobo$58b2o$58bo30bo$88bo$88b3o5$75bo$76bo$74b3o10$6bo90bobo$7b2o88b
2o$6b2o90bo$o$b2o69b2o$2o62b2o6b2o$64b2o$4bo$4b2o$3bobo15$85b2o$84b2o
11b2o$86bo10bobo$55b3o39bo$57bo$56bo!
Edit 7: completed 11G synthesis:
Code: Select all
x = 113, y = 63, rule = B3/S23
45bobo$46b2o$46bo30bo$76bo$76b3o5$63bo$64bo$62b3o10$85bobo$85b2o$86bo
2$6bo53b2o$7b2o43b2o6b2o$6b2o44b2o$o$b2o$2o2$4bo$4b2o$3bobo11$73b2o$
72b2o11b2o$74bo10bobo$43b3o39bo$45bo$44bo10$110b2o$110bobo$110bo!
Edit 8: 9G (xs15_g84215a4z1252):
Code: Select all
x = 209, y = 38, rule = B3/S23
3bo$bobo$2b2o82bo$15bo68bobo$15bobo67b2o$15b2o2$bobo$2b2o$2bo$7bo$5b2o
$6b2o$96b3o$3bo$2b2o$2bobo3$207bo$206bo$206b3o3$203b2o$203b2o2$121b2o
62bo$121b2o61bobo$183bobo$103bo79bo$102bobo79bo4bo$bo30b2o67bobo81bo2b
obo$b2o29bobo66bo84bo2bo$obo29bo69bo4bo79b2o$103bo2bobo$104bo2bo$105b
2o!
Edit 9: Unfortunately this is the only way to construct xs15_358ge12ko from soup:
Code: Select all
x = 27, y = 39, rule = B3/S23
16b2o$16b2o8$23b2o$22bo2bo$23b2o10$23b2o$23b2o5$3o$2bo$obo$2o20bo$22bo
$22bo2$18b3o3b3o2$22bo$22bo$22bo!
It's too hard to synthesize this reaction in 11G.
Edit 10: 10G for another python-shillelagh-tie isomer:
Code: Select all
x = 103, y = 52, rule = B3/S23
44bo$45bo$43b3o11$8bobo2bo$9b2o2bobo$9bo3b2o$72b2o$72b2o2$2o$b2o$o89bo
$63b2o25bobo$62bo2bo24b2o$63b2o11$75b2o$74b2o$76bo2$65b2o$66b2o$65bo4$
76b2o$76bobo$76bo$58b2o$57bobo40b3o$59bo40bo$101bo!
Edit 11: one glider saved, 9G:
Code: Select all
x = 103, y = 52, rule = B3/S23
44bo$45bo$43b3o11$8bobo2bo$9b2o2bobo$9bo3b2o$72b2o$72b2o2$2o$b2o$o89bo
$63b2o25bobo$62bo2bo24b2o$63b2o11$64b2o$65b2o$64bo2$74b2o$73b2o$75bo$
61b2o$60bobo$62bo5$100b3o$100bo$101bo!
Edit 12: 9G (xs15_25iczmdz11):
Code: Select all
x = 72, y = 61, rule = B3/S23
o$b2o$2o8$67bo$66bo$66b3o5$32b2o$31bo2bo$32bobo$33bo3$18bo$19bo$17b3o
19$25b2o$24bobo$26bo43b2o$69b2o$71bo3$14b3o$16bo$15bo5$46b2o$45b2o$47b
o!