198 steps wm2139wm2139 signature 23→33 rule {{{1, 1, 2}, {3, 4, 2}} -> {{4, 4, 1}, {5, 1, 4}, {5, 3, 2}}} {{{1, 1, 2}, {3, 4, 2}} -> {{4, 4, 1}, {5, 1, 4}, {5, 3, 2}}}