The Card Number Validation hole will go live in . Why not try and solve it ahead of time?

HarryAllen1

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6 / 108 Holes

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1 / 58 Langs

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6 / 75 Cheevos

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Evil Numbers in JavaScript in Chars Play Hole

255th in JavaScript and 3,053rd overall.

Last tested .

Bytes Chars Submitted
68 68
70 70
71 71
77 77