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

Rankings: Holes

Reversi in Swift in chars.

# Golfer Lang Points Chars Time
1st error256 Swift 1,000 162
2nd stefangimmillaro Swift 798 203
3rd Shanethegamer 🇺🇸 Swift 757 214
4th MeWhenI 🇻🇦 Swift 750 216