Talk:Cis-block on long bookend

A 4-glider synthesis is known:

#N cisblockonlonghook_synth
#C Glider synthesis of cis-block on long hook
#C http://conwaylife.com/wiki/Cis-block_on_long_hook
x = 40, y = 12, rule = B3/S23
3bo$4bo3bobo23b2o$2b3o4b2o23bobob2o$9bo26bob2o$36bo$8b3o24b2o$10bo$9bo
2$3o$2bo$bo!

-- gmc_nxtman (talk)