171 steps wm4933wm4933 signature 23→33 rule {{{1, 1, 2}, {3, 4, 5}} -> {{3, 3, 6}, {2, 3, 6}, {4, 2, 6}}} {{{1, 1, 2}, {3, 4, 5}} -> {{3, 3, 6}, {2, 3, 6}, {4, 2, 6}}}