175 steps wm47295wm47295 signature 23→33 rule {{{1, 2, 1}, {3, 4, 5}} -> {{6, 7, 6}, {7, 2, 3}, {4, 3, 7}}} {{{1, 2, 1}, {3, 4, 5}} -> {{6, 7, 6}, {7, 2, 3}, {4, 3, 7}}}