101 steps
wm6975wm6975
signature
23→33
rule
{{{1, 1, 2}, {2, 3, 4}} -> {{5, 5, 4}, {1, 5, 2}, {2, 3, 3}}}
{{{1, 1, 2}, {2, 3, 4}} -> {{5, 5, 4}, {1, 5, 2}, {2, 3, 3}}}
make editable copy
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