53 steps wm4147wm4147 signature 23→33 rule {{{1, 1, 2}, {3, 2, 4}} -> {{3, 3, 3}, {2, 3, 4}, {4, 1, 5}}} {{{1, 1, 2}, {3, 2, 4}} -> {{3, 3, 3}, {2, 3, 4}, {4, 1, 5}}}