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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 all languages in bytes.

    # Golfer Points Bytes Time Submitted
    641st aliakseikalosha 561 127
    642nd brimstonetrader 561 142
    642nd codewrite 🇬🇧 561 142
    642nd RobGLambert 561 142
    642nd GodlyProgrammer1 561 142
    646th FortuiteMan 🇫🇷 559 272
    647th ravnskjaer 🇩🇰 558 167
    648th GeneralFabian 557 143
    648th CutSandstone 557 143
    648th kistlerf 🇨🇭 557 143
    651st madex 🇩🇪 555 116
    652nd MeWhenI 🇻🇦 554 290
    653rd hiichbindermax 553 144
    653rd mathisfun271 553 144
    653rd bob-th 553 144
    656th JDiLenarda 🇫🇷 553 165
    657th KatieLG 🇬🇧 552 120
    658th snoozingnewt 🇨🇦 552 148
    659th edsrzf 🇳🇿 551 135
    660th JunkIce 550 145
    660th Flekay 🇩🇪 550 145
    662nd msbranicky 550 185
    663rd mousetail 🇳🇱 549 128
    664th ethanlally 549 170
    664th snoozingnewt 🇨🇦 549 170
    666th gpikmddk 548 130
    667th croc54 546 146
    668th zakariamouhid 545 118
    668th JOrE20 🇺🇸 545 118
    670th xyangst 545 171
    670th kmathis22 545 171
    672nd najs91 544 131
    672nd bac0id 544 131
    672nd CaedenHarper 🇨🇦 544 131
    675th dokutan 543 122
    676th PyryL 🇫🇮 542 147
    677th eranws 541 119
    678th Sciman101 539 147
    679th mbittner20 538 148
    679th YAJUE114514 538 148
    681st psaban 535 149
    681st TheZwierzLF 🇵🇱 535 149
    683rd msbranicky 533 175
    684th deancureton 532 121
    685th FlorianCassayre 🇫🇷 531 150
    685th jameswmccarty 531 150
    685th yousefalizadeh 531 150
    685th feherd 531 150
    685th kadamkaustubh 531 150
    690th msbranicky 528 126
    691st adamnielson42 🇺🇸 524 152
    691st voidgloom 524 152
    691st omero-san 524 152
    691st brochmann 🇸🇪 524 152
    695th Macweese 524 178
    696th galloj 🇨🇿 522 112
    697th TheZwierzLF 🇵🇱 522 127
    698th xyangst 521 153
    698th denisfouchard 521 153
    700th snoozingnewt 🇨🇦 519 213
    701st bac0id 518 180
    702nd osNiko 🇧🇷 517 154
    703rd sidok 515 109
    704th dokutan 514 143
    705th robin-scragg 514 155
    705th celiendonze 🇨🇭 514 155
    707th travisdoesmath 511 156
    707th Shotokhan 511 156
    709th nephila-nacrea 🇬🇧 510 77
    710th blaztoma 🇱🇹 510 154
    711th yoshykai 510 183
    712th KatieLG 🇬🇧 509 140
    713th KatieLG 🇬🇧 509 146
    714th dokutan 508 116
    715th Chinay-Domitrix 🇺🇸 508 131
    716th lhulinsky 508 157
    717th dokutan 507 126
    718th ThatAlo 504 158
    719th Andrey2001 502 132
    720th msbranicky 501 138