6 steps wm1714wm1714 signature 23→43 rule {{{1, 2, 3}, {4, 5, 6}} -> {{7, 7, 1}, {1, 2, 4}, {3, 7, 2}, {7, 8, 9}}} {{{1, 2, 3}, {4, 5, 6}} -> {{7, 7, 1}, {1, 2, 4}, {3, 7, 2}, {7, 8, 9}}}