39 steps wm56422wm56422 signature 1223→4243 rule {{{1, 2, 3}, {4, 5, 6}, {1, 4}} -> {{3, 7, 8}, {9, 5, 10}, {11, 6, 12}, {13, 14, 2}, {7, 14}, {8, 10}, {12, 9}, {13, 11}}} {{{1, 2, 3}, {4, 5, 6}, {1, 4}} -> {{3, 7, 8}, {9, 5, 10}, {11, 6, 12}, {13, 14, 2}, {7, 14}, {8, 10}, {12, 9}, {13, 11}}}