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

xyangst

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35 / 108 Holes

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51 / 58 Langs

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28 / 75 Cheevos

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CSS Colors in JavaScript in Chars Play Hole

74th in JavaScript and 626th overall.

Last tested .

Bytes Chars Submitted
6,303 1,608
3,131 3,131
3,191 3,191
3,211 3,211
3,241 3,241
3,255 3,255
3,279 3,279
3,284 3,284