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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
    Rule 110 dokutan 670
    Rule 110 error256 🥇 94
    Pascal’s Triangle error256 🥈 62
    Factorial Factorisation kmathis22 243
    γ JOrE20 1,010
    φ edsrzf 51
    Billiards GrayJoKing 185
    Scrambled Sort edsrzf 🥉 89
    Ascending Primes edsrzf 110
    Minesweeper edsrzf 💎 121
    √2 dokutan 384
    τ dokutan 384
    Van Eck Sequence dokutan 669
    Vampire Numbers dokutan 375
    Rijndael S-box dokutan 328
    Recamán dokutan 335
    Pascal’s Triangle dokutan 271
    Partition Numbers dokutan 276
    N Queens dokutan 372
    Lucky Numbers dokutan 1,401
    ln 2 dokutan 385
    Leyland Numbers dokutan 339
    Kolakoski Constant dokutan 385
    Kaprekar Numbers dokutan 205
    Hexagonal Spiral dokutan 169
    Foo Fizz Buzz Bar dokutan 609
    Factorial Factorisation kurkale6ka 869
    Odious Numbers (Long) snoozingnewt 43
    Odious Numbers snoozingnewt 42
    Evil Numbers snoozingnewt 43
    Evil Numbers (Long) snoozingnewt 45
    Gray Code Decoder error256 69
    Pernicious Numbers error256 💎 40
    PalindromemordnilaP error256 🥇 89
    Odious Numbers error256 💎 33
    Niven Numbers error256 💎 39
    Mandelbrot error256 💎 108
    Kolakoski Sequence error256 🥉 72
    Inventory Sequence error256 💎 51
    Happy Numbers error256 💎 36
    Prime Numbers tomh1012 25
    𝑒 dokutan 383
    φ dokutan 384
    π dokutan 383
    λ dokutan 385
    γ dokutan 386
    Trinomial Triangle dokutan 599
    Tower of Hanoi dokutan 134
    Tongue-twisters dokutan 🥈 191
    Smith Numbers dokutan 604
    Sierpiński Triangle dokutan 126
    Polyominoes dokutan 🥉 480
    Number Spiral dokutan 165
    Mandelbrot dokutan 195
    Look and Say dokutan 215
    Kolakoski Sequence dokutan 147
    Inventory Sequence dokutan 615
    Hilbert Curve dokutan 🥈 264
    Happy Numbers (Long) dokutan 237
    Gijswijt’s Sequence dokutan 108
    Fizz Buzz dokutan 153
    Farey Sequence dokutan 1,065
    Factorial Factorisation dokutan 296
    Diamonds dokutan 111
    Cubes dokutan 🥉 299
    Collatz dokutan 85
    Christmas Trees dokutan 138
    Catalan’s Constant dokutan 383
    Catalan Numbers dokutan 983
    24 Game dokutan 🥉 1,958
    12 Days of Christmas dokutan 🥈 262
    Emirp Numbers error256 🥇 41
    Catalan Numbers error256 🥇 42
    Card Number Validation error256 💎 66
    Pangram Grep error256 💎 65
    Abundant Numbers error256 💎 43
    Fibonacci error256 🥇 26
    Star Wars Opening Crawl Kacarott 💎 393
    Fibonacci GolfingSuccess 31
    Rule 110 GrayJoKing 🥇 94