The Tic-tac-toe hole will go live in approximately . Why not try and solve it ahead of time?

Rankings: Holes

Card Number Validation in Ruby in bytes.

# Golfer Points Bytes Time
1st JayXon 🇺🇸 1,000 51
2nd radarek 🇵🇱 944 54
2nd MeWhenI 🇻🇦 944 54
2nd error256 944 54
2nd nwellnhof 🇩🇪 944 54
6th pardouin 🇫🇷 927 55
6th ovs-code 🇩🇪 927 55
8th m-tkach 🇺🇦 879 58
9th Natanaelel 🇸🇪 836 61
9th stefangimmillaro 836 61
11th sisyphus-ppcg 🇦🇺 823 62
12th emgordon154 810 63
13th Shanethegamer 🇺🇸 797 64
13th Andriamanitra 🇫🇮 797 64
15th SirBogman 🇺🇸 773 66
16th anter69 🇭🇺 761 67
17th janlelis 750 68
18th tatzyr 🇯🇵 630 81
19th olleicua 🇺🇸 622 82
20th KatieLG 🇬🇧 600 85
21st madex 🇩🇪 490 104