#CSYNTH xp30_w33z8kqrqk8zzzw33 costs 5 gliders (true).
#CLL state-numbering golly
x = 54, y = 50, rule = B3/S23
51bo$51bobo$51b2o32$23bobo$23b2o$24bo6$bo$2bo$3o2$27bo$21b3o2b2o$
23bo2bobo$22bo!