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

    Recent Solutions

    Hole Golfer Chars Time Submitted
    Day of Week DialFrost 🥈 136
    Day of Week emgordon154 💎 135
    SI Units blaztoma 🥈 633
    Emirp Numbers (Long) edsrzf 🥈 146
    Smith Numbers edsrzf 💎 170
    Mahjong snoozingnewt 💎 269
    Gijswijt’s Sequence blaztoma 195
    Sudoku snoozingnewt 💎 617
    Number Spiral blaztoma 🥉 217
    Diamonds JOrE20 735
    Prime Numbers (Long) edsrzf 💎 76
    Mahjong blaztoma 🥈 277
    Sudoku blaztoma 🥈 627
    Rock-paper-scissors-Spock-lizard blaztoma 🥈 350
    Emojify blaztoma 🥉 147
    Topological Sort snoozingnewt 💎 166
    Transpose Sentence snoozingnewt 🥉 104
    ROT13 snoozingnewt 93
    Hexdump snoozingnewt 🥈 238
    Star Wars Opening Crawl snoozingnewt 🥈 660
    Poker snoozingnewt 🥉 419
    Poker blaztoma 🥈 415
    Smith Numbers blaztoma 🥉 180
    Poker edsrzf 💎 400
    Hilbert Curve JOrE20 🥉 1,945
    Star Wars Opening Crawl blaztoma 💎 608
    Cubes snoozingnewt 💎 269
    Partition Numbers blaztoma 🥉 116
    Factorial Factorisation JOrE20 811
    Kolakoski Constant blaztoma 🥇 164
    Tongue-twisters blaztoma 414
    DFA Simulator edsrzf 🥇 234
    Happy Numbers (Long) edsrzf 🥇 111
    Musical Chords edsrzf 💎 175
    Musical Chords blaztoma 🥈 195
    Morse Encoder edsrzf 💎 172
    Morse Decoder edsrzf 💎 159
    Roman to Arabic edsrzf 🥉 118
    Happy Numbers albanian-laundromat 84
    Tic-tac-toe edsrzf 🥈 101
    Tic-tac-toe snoozingnewt 🥉 107
    Morse Encoder snoozingnewt 🥈 243
    Morse Decoder snoozingnewt 🥈 240
    Polyominoes blaztoma 🥈 325
    Emojify JOrE20 419
    Cubes blaztoma 🥈 275
    Pernicious Numbers blaztoma 🥇 67
    Card Number Validation edsrzf 💎 90
    Christmas Trees snoozingnewt 🥉 114
    Jacobi Symbol snoozingnewt 💎 195
    Card Number Validation snoozingnewt 🥈 92
    Inventory Sequence JOrE20 1,937
    Kolakoski Sequence JOrE20 2,022
    Zeckendorf Representation snoozingnewt 🥈 142
    Sudoku (Fill-in) snoozingnewt 🥈 343
    Repeating Decimals snoozingnewt 💎 238
    Tongue-twisters snoozingnewt 🥈 293
    Polyominoes snoozingnewt 💎 301
    99 Bottles of Beer snoozingnewt 🥈 268
    12 Days of Christmas snoozingnewt 💎 334
    Repeating Decimals blaztoma 🥈 240
    Ten-pin Bowling blaztoma 🥈 240
    Fizz Buzz scpchicken 352
    brainfuck edsrzf 💎 300
    Spelling Numbers JOrE20 🥈 558
    Rule 110 edsrzf 💎 128
    Niven Numbers albanian-laundromat 104
    Leap Years edsrzf 71
    Smooth Numbers GolfingSuccess 123
    Scrambled Sort DialFrost 143
    Hilbert Curve snoozingnewt 💎 436
    24 Game snoozingnewt 💎 213
    N Queens emgordon154 🥈 172
    Time Distance snoozingnewt 🥈 350
    Spelling Numbers snoozingnewt 💎 493
    Scrambled Sort edsrzf 🥇 116
    Scrambled Sort snoozingnewt 🥇 116
    Foo Fizz Buzz Bar dokutan 239
    Fizz Buzz dokutan 185
    Odious Numbers (Long) snoozingnewt 🥉 79