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    The Calendar hole will go live in approximately . Why not try and solve it ahead of time?

    Rankings: Holes

    Card Number Validation in Python in bytes.

    # Golfer Points Bytes Time Submitted
    1st khvdm 1,000 83
    2nd bizy-coder 988 84
    2nd pardouin 🇫🇷 988 84
    2nd AlephSquirrel 988 84
    2nd btnlq 988 84
    2nd Seek64 🇩🇪 988 84
    2nd m-tkach 🇺🇦 988 84
    2nd Rubiksmath 988 84
    2nd JayXon 🇺🇸 988 84
    2nd kops-cg 988 84
    2nd xnor-gate 988 84
    12th inventshah 976 85
    13th hallvabo 🇳🇴 965 86
    14th nwellnhof 🇩🇪 922 90
    14th ovs-code 🇩🇪 922 90
    14th kg583 🇺🇸 922 90
    14th sean-niemann 🇺🇸 922 90
    14th ryyyn 🇺🇸 922 90
    19th 5cw 🇺🇸 912 91
    19th stefangimmillaro 912 91
    19th duckyluuk 🇳🇱 912 91
    19th GrayJoKing 🇦🇺 912 91
    23rd Shanethegamer 🇺🇸 902 92
    23rd error256 902 92
    23rd thatbirdguythatuknownot 902 92
    26th Bulmenisaurus 892 93
    26th lynn 892 93
    26th CornerMercury 🇬🇧 892 93
    26th KasperKivimaeki 🇫🇮 892 93
    26th blaztoma 🇱🇹 892 93
    31st DialFrost 🇸🇬 883 94
    31st ndren 883 94
    33rd moustave 874 95
    33rd emgordon154 874 95
    35th MeWhenI 🇻🇦 865 96
    36th GolfingSuccess 🇬🇷 847 98
    36th firegene 🇮🇪 847 98
    36th albanian-laundromat 847 98
    39th SirBogman 🇺🇸 838 99
    40th anter69 🇭🇺 830 100
    40th bzijlema 🇳🇱 830 100
    40th bricknellj 830 100
    43rd lifthrasiir 🇰🇷 822 101
    43rd btjones0 822 101
    45th annaproxy 814 102
    45th snoozingnewt 🇨🇦 814 102
    47th jatloe 798 104
    47th solisolu 798 104
    49th fourth-bit 790 105
    49th jared-hughes 790 105
    49th mattyhempstead 790 105
    52nd davecame 783 106
    52nd starfihs 783 106
    52nd rschwa6308 🇺🇸 783 106
    52nd snydej 783 106
    52nd andrewjc2000 783 106
    52nd qpwoeirut 783 106
    58th commandblockguy 🇺🇸 776 107
    58th zbreit 🇺🇸 776 107
    58th StardustGogeta 776 107
    58th ZakkkkAttackkkk 🇵🇭 776 107
    58th InigoK 🇺🇸 776 107
    63rd neihousaigaai 769 108
    63rd StefanHabel 🇨🇦 769 108
    63rd CaedenHarper 🇨🇦 769 108
    63rd BrunoVisnadi 🇧🇷 769 108
    67th cros107 🇦🇺 755 110
    67th guilhem-roy 🇫🇷 755 110
    67th Lv0Sys 🇵🇱 755 110
    70th mousetail 🇳🇱 748 111
    71st OllieBoyne 🇬🇧 741 112
    71st WillConker 741 112
    71st maxgodfrey2004 🇨🇦 741 112
    71st Babafaba 741 112
    75th SB-945 735 113
    75th Artemis21 🇬🇧 735 113
    75th fkantelberg 735 113
    78th HumanoidCPU 728 114
    79th jipsong 🇩🇪 722 115
    79th luuumine 🇫🇷 722 115