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

alphafalfa

26,624
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26,383
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🥉4

IT guy with exploratory nerding.

⛳

48 / 108 Holes

🔣

12 / 58 Langs

🏆

23 / 75 Cheevos

📅

ISBN in AWK in Bytes Play Hole

12th in AWK and 1,135th overall.

Last tested .

Bytes Chars Submitted
121 121
131 131
132 132
133 133
134 134
135 135
136 136
137 137
138 138
139 139
142 142
151 151
169 169
170 170