99 steps wm2964wm2964 signature 23→43 rule {{{1, 1, 2}, {3, 4, 5}} -> {{4, 4, 6}, {7, 4, 8}, {1, 7, 6}, {1, 7, 3}}} {{{1, 1, 2}, {3, 4, 5}} -> {{4, 4, 6}, {7, 4, 8}, {1, 7, 6}, {1, 7, 3}}}