198 steps wm5539wm5539 signature 23→33 rule {{{1, 1, 2}, {3, 2, 4}} -> {{5, 5, 4}, {5, 2, 1}, {6, 5, 1}}} {{{1, 1, 2}, {3, 2, 4}} -> {{5, 5, 4}, {5, 2, 1}, {6, 5, 1}}}