18 steps
wm6664wm6664
signature
32→42
rule
{{{1, 2}, {1, 3}, {1, 4}} -> {{2, 2}, {3, 2}, {3, 4}, {3, 5}}}
{{{1, 2}, {1, 3}, {1, 4}} -> {{2, 2}, {3, 2}, {3, 4}, {3, 5}}}
make editable copy
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