The Tic-tac-toe hole will go live in approximately . Why not try and solve it ahead of time?

janlelis

63,035
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61,624
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🥉12

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72 / 112 Holes

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3 / 61 Langs

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26 / 77 Cheevos

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Card Number Validation in Ruby in Bytes Play Hole

17th in Ruby and 381st overall.

Last tested .

Bytes Chars Submitted
68 68