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This reaction has GOT to be known.

x = 1319, y = 1246, rule = B3/S23
20$1240bo$1239bobo$1232b2o4bob2o15b2o$1232b2o3b2ob2o14bobo$1238bob2o13b
o6b2o$1239bobo13bo2bo2bo2bob2o$1240bo5bo8bo6b2o2b2o$1246bobo7bobo$1246b
2o9b2o5$1239bo$1238bo$1238b3o16b2o$1256bobo$1255b3o$1255b2o$1255b2o$1224b
2o30bobo ...

x = 15, y = 9, rule = B3/S23
bo11bo$2bo9bo$3ob2o3b2ob3o$4b2o3b2o2$7bo$6bobo$6bobo$7bo!



Can someone find a valid synthesis? It might be interesting.


x = 142, y = 195, rule = B3/S23
23$103b2o$103b2o5b2o$110b2o3$108b2o$108b2o$114b2o$114b2o4$94bo$94bobo
$94b3o$96bo4$96b2ob2o$87b2o6bobobobo ...

Two gliders transforming four r-pentominoes into two Herschels.

x = 32, y = 30, rule = B3/S23
10$19bo$17bobo$18b2o3$17b2o4b2o$16b2o6b2o$17bo6bo5$17bo6bo$16b2o6b2o$
17b2o4b2o3$22b2o$22bobo$22bo!

Anyone could find a useful reaction for this? It seems hard since the r-pentominoes are so tightly ...

I’m not sure but I found this methuselah that you will notice creates lots of pi heptominoes on the way(in fact, two per 150 generations and most evolve for more then 30 generations before crashing into something):
x = 15, y = 9, rule = B3/S23
bo11bo$2bo9bo$3ob2o3b2ob3o$4b2o3b2o2$7bo$6bobo$6bobo ...

I’m not sure but I found this methuselah that you will notice creates lots of pi heptominoes on the way(in fact, two per 150 generations and most evolve for more then 30 generations before crashing into something):
x = 15, y = 9, rule = B3/S23
bo11bo$2bo9bo$3ob2o3b2ob3o$4b2o3b2o2$7bo$6bobo$6bobo$7bo ...