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

luca1339

15,898
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15,120
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⛳

25 / 108 Holes

🔣

4 / 58 Langs

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11 / 75 Cheevos

📅

Evil Numbers in Java in Chars Play Hole

59th in Java and 1,401st overall.

Last tested .

Bytes Chars Submitted
116 116
117 117