`x = 15, y = 8, rule = B3/S23`

3bob2o$b3ob2o$o$b3ob2o$3bobo6b3o$3bobo5bo2bo$4bo5bo2bo$11b2o!

Here are some other goodies with the same base:

`x = 30, y = 18, rule = B3/S23`

24bob2o$22b3obo$21bo4bobo$21bob2ob2obo$22bobo4bo$24bob3o$23b2obo4$3bob

2o$b3ob2o$o$b3ob2o$3bobo6b3o$3bobo5bo2bo$4bo5bo2bo$11b2o!

`x = 33, y = 17, rule = B3/S23`

3bob2o$b3ob2o$o$b3ob2o$3bobo6b3o$3bobo5bo2bo$4bo5bo2bo9b2o$11b2o9bo2bo

2b2o$22bobo4bo$23bo5bob2o$26b2obobo$26bo2bo2bo$23bo4bo2b2o$23b5o2$25b

2obo$25bob2o!

And a seemingly accessible D->G. Not sure if this is known:

`x = 23, y = 30, rule = B3/S23`

o$3o$3bo$2b2o13$4b3o$3bo2bo$2bo2bo$3b2o2$21b2o$19bo2bo$19b3o$16bo$16b

6o$21bo$16b3o$15bo2bo$15b2o!

Here are a list of interesting perturbations: pretty ones, hopeful ones etc.

`x = 275, y = 211, rule = B3/S23`

113b2o$112bobo$110b3obobo$109bo4b2obo$109bob2o4bo$110bobob3o$112bobo$

112b2o$66bo$66b3o$69bo$9b2o57bo$9b2o56bo81b3o11b2o67b2o$67b2o79bo2bo

11b2o66bobo$147bo2bo80b2o$148b2o2$228b2o$3b3o4b2o24b3o4b2o111bob2o24b

3o41b2o$2bo2bo4b2o23bo2bo4b2o28b3o6b2o24b3o11b2o30b3obo24bo2bo$bo2bo

29bo2bo34bo2bo6b2o23bo2bo11b2o29bo4bobo21bo2bo21b2o$2b2o31b2o34bo2bo

31bo2bo43bob2ob2obo21b2o22b2o33b3o$72b2o33b2o45bobo4bo79bo2bo$156bob3o

79bo2bo$155b2obo82b2o31$227bo$227b3o$230bo$229b2o3$118b2o39b2o$46b2o5b

2o63b2o39b2o$47bo5b2o20b3o$47bobo24bo2bo75b2o$48b2o23bo2bo12b2o62b2o$

13b2o59b2o13bobo92b3o$5b3o5b2o76bo91bo2bo$4bo2bo83b2o15b3o71bo2bo$3bo

2bo71b2o27bo2bo72b2o10b2o$4b2o9b2o61b2o26bo2bo84bo2bo$15bo91b2o86b2o

34b3o$16b3o34b3o64b2o108bo2bo$18bo33bo2bo64bo23b3o51b2o29bo2bo$51bo2bo

66b3o19bo2bo51bo31b2o$52b2o69bo18bo2bo53b3o$143b2o56bo24$3bo$3b3o$6bo

7b2o$5b2o7bo$12bobo$12b2o2$42b2o192b2o$42b2o21b2o24b2o143bobob2o$65bo

25b2o103b3o39bobo$63bobo79b2o48bo2bo38b2obo$63b2o36b3o40bobo9b3o35bo2b

o42bob2o$8b3o89bo2bo40bo10bo2bo36b2o43bobo13b3o$7bo2bo39b3o46bo2bo40b

2o9bo2bo53b2o26b2obobo10bo2bo$6bo2bo39bo2bo47b2o53b2o54bobo29b2o9bo2bo

$7b2o39bo2bo64b2o53b2o32bo7bo41b2o$49b2o65bobo52bobo29b3o7b2o56b2o$

118bo54bo28bo68bobo$118b2o53b2o27b2o69bo$273b2o24$72bo125bo$70b3o124bo

bo$59b2o8bo21b2o104bobo$13bo46bo8b2o21bo102b3ob2o$2o9b3o46bobo29bobo

99bo$bo8bo50b2o30b2o100b3ob2o$bobo6b2o185bob2o$2b2o142b3o93b2o$145bo2b

o92bobo9b3o$144bo2bo93bo10bo2bo$145b2o93b2o9bo2bo$252b2o$64b3o$63bo2bo

32b3o168b2o$5b3o54bo2bo32bo2bo64b2o100bo2bo$4bo2bo55b2o32bo2bo56b2o7bo

bo99b3o$3bo2bo91b2o57b2o5bobob3o34b3o57bo$4b2o111bo45bob2o4bo32bo2bo

57b6o$116bobo44bo4b2obo31bo2bo63bo$117b2o45b3obobo33b2o9b2obo46b3o$

166bobo46b2ob3o43bo2bo$167b2o52bo42b2o$215b2ob3o$216bobo$216bobo$217bo

6$5bo$4bobo$4bobo$2b3ob2o$bo$2b3ob2o$4bob2o4$79bob2o$79b2obo2$77b5o$

77bo4bo2b2o$80bo2bo2bo$12b3o65b2obobo$11bo2bo62bo5bob2o$10bo2bo9b2o51b

obo4bo35b2o$11b2o9bo2bo2b2o46bo2bo2b2o34bobo$22bobo4bo31b3o13b2o40bo$

23bo5bob2o27bo2bo$26b2obobo27bo2bo40b3o$26bo2bo2bo27b2o40bo2bo$23bo4bo

2b2o68bo2bo$23b5o49b2o23b2o$76bo2bo2b2o38b2o$25b2obo47bobo4bo37bo2bo2b

2o$25bob2o48bo5bob2o34bobo4bo$80b2obobo36bo5bob2o$80bo2bo2bo38b2obobo$

77bo4bo2b2o38bo2bo2bo$77b5o40bo4bo2b2o$122b5o$79b2obo$79bob2o41b2obo$

124bob2o!