99 steps
wm4448wm4448
signature
1213→2223
rule
{{{1, 1, 2}, {3, 4}} -> {{2, 2, 4}, {1, 5, 4}, {2, 2}, {3, 1}}}
{{{1, 1, 2}, {3, 4}} -> {{2, 2, 4}, {1, 5, 4}, {2, 2}, {3, 1}}}
make editable copy
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