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

    Recent Solutions

    Hole Golfer Chars Time Submitted
    Zeckendorf Representation snoozingnewt 87
    Sudoku pardouin 151
    Zeckendorf Representation blaztoma 77
    Fibonacci Andrey2001 31
    Tower of Hanoi denkyuu1 53
    Abundant Numbers (Long) denkyuu1 🥉 46
    Factorial Factorisation akaritakai 92
    Van Eck Sequence blaztoma 40
    Vampire Numbers blaztoma 117
    Fizz Buzz denkyuu1 60
    United States blaztoma 82
    Pernicious Numbers (Long) denkyuu1 57
    Odious Numbers (Long) denkyuu1 35
    Niven Numbers (Long) denkyuu1 🥇 38
    Evil Numbers (Long) retrohun 50
    τ aksyristos 58
    π aksyristos 54
    Multitap Input denkyuu1 72
    √2 denkyuu1 52
    φ denkyuu1 61
    Trinomial Triangle blaztoma 49
    Transpose Sentence blaztoma 52
    Odious Numbers (Long) aksyristos 43
    Odious Numbers aksyristos 42
    Evil Numbers (Long) aksyristos 44
    Pernicious Numbers aksyristos 46
    Evil Numbers aksyristos 42
    Arithmetic Numbers aksyristos 68
    Game of Life radarek 🥈 62
    Snake Shanethegamer 118
    Fizz Buzz albanian-laundromat 67
    Look and Say albanian-laundromat 58
    Quine prestosilver 🥇 25
    Billiards radarek 🥉 75
    Calendar Steffan153 🥇 84
    Calendar radarek 🥇 84
    ROT13 radarek 🥇 35
    Alphabetic Numbers CaedenHarper 3,900
    Ascending Primes xsot 65
    Leap Years prestosilver 43
    24 Game rucin93 226
    ROT13 edsrzf 🥇 35
    Smooth Numbers Shanethegamer 71
    Jacobi Symbol HumanoidCPU 98
    Pernicious Numbers (Long) snoozingnewt 47
    Tower of Hanoi blaztoma 52
    Star Wars GPT xsot 75
    Topological Sort blaztoma 78
    Tongue-twisters blaztoma 289
    Factorial Factorisation scpchicken 80
    Spelling Numbers dokutan 229
    Alphabetic Numbers dokutan 172
    Fractions oaiqjuy 🥇 17
    Hilbert Curve oaiqjuy 593
    Forsyth–Edwards Notation oaiqjuy 106
    12 Days of Christmas oaiqjuy 547
    Intersection oaiqjuy 138
    Multitap Input oaiqjuy 102
    brainfuck oaiqjuy 269
    Number Spiral oaiqjuy 126
    Billiards oaiqjuy 251
    Pernicious Numbers oaiqjuy 42
    Partition Numbers oaiqjuy 63
    Emirp Numbers oaiqjuy 79
    N Queens oaiqjuy 151
    Tongue-twisters oaiqjuy 385
    Medal Tally oaiqjuy 158
    Levenshtein Distance oaiqjuy 170
    Abundant Numbers oaiqjuy 71
    Morse Encoder oaiqjuy 199
    DFA Simulator oaiqjuy 273
    Factorial Factorisation oaiqjuy 86
    Smith Numbers oaiqjuy 185
    United States oaiqjuy 820
    Diamonds oaiqjuy 113
    Polyominoes oaiqjuy 272
    Repeating Decimals oaiqjuy 180
    Musical Chords oaiqjuy 372
    Emirp Numbers (Long) oaiqjuy 126
    Emojify oaiqjuy 186
    Proximity Grid oaiqjuy 184
    Kolakoski Constant oaiqjuy 188
    Reversi oaiqjuy 360
    Divisors Orsailius 46
    Musical Chords JayXon 🥇 67
    Leap Years Steffan153 🥇 33
    Prime Numbers madex 36
    Alphabetic Numbers MeWhenI 🥉 113
    Cubes prestosilver 219
    Gray Code Encoder aksyristos 35
    brainfuck MeWhenI 106
    12 Days of Christmas sisyphus-ppcg 419
    Tower of Hanoi sisyphus-ppcg 54
    Time Distance blaztoma 193
    Emirp Numbers aksyristos 77
    Emirp Numbers (Long) aksyristos 78
    Time Distance Lv0Sys 211
    Continued Fractions radarek 70
    Ten-pin Bowling blaztoma 102
    Gray Code Encoder xsot 🥇 33