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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 Bytes Time Submitted
    Collatz KasperKivimaeki 66
    Hexagonal Spiral bitsandbeyond 201
    Calendar targrik 195
    Pernicious Numbers (Long) DialFrost 53
    Arithmetic Numbers xsot 💎 64
    PalindromemordnilaP xsot 🥉 75
    Fibonacci Pyroan 44
    Maze targrik 163
    Prime Numbers KasperKivimaeki 48
    Prime Numbers (Long) KasperKivimaeki 49
    Fizz Buzz amazingalek 73
    Fizz Buzz mwarvik 73
    Happy Numbers (Long) targrik 74
    Odious Numbers (Long) targrik 43
    Evil Numbers targrik 41
    Odious Numbers targrik 41
    Catalan Numbers DialFrost 🥉 164
    Arabic to Roman jessegyger 737
    Arithmetic Numbers KasperKivimaeki 🥈 67
    Musical Chords blaztoma 🥉 232
    Smooth Numbers GolfingSuccess 84
    Maze blaztoma 182
    Sudoku (Fill-in) blaztoma 🥉 312
    ASCII Table KasperKivimaeki 114
    λ JOrE20 1,008
    Evil Numbers (Long) snoozingnewt 61
    Morse Decoder targrik 194
    Morse Encoder targrik 179
    Catalan Numbers targrik 257
    Snake targrik 157
    Multitap Input targrik 117
    Pernicious Numbers KasperKivimaeki 🥇 35
    𝑒 KasperKivimaeki 96
    Niven Numbers (Long) KasperKivimaeki 53
    Niven Numbers KasperKivimaeki 🥇 42
    Odious Numbers (Long) KasperKivimaeki 49
    Smith Numbers KasperKivimaeki 💎 94
    Niven Numbers snoozingnewt 43
    Evil Numbers (Long) KasperKivimaeki 52
    99 Bottles of Beer KasperKivimaeki 319
    ROT13 KasperKivimaeki 41
    Levenshtein Distance KasperKivimaeki 🥇 56
    Abundant Numbers (Long) KasperKivimaeki 62
    Sierpiński Triangle KasperKivimaeki 🥇 51
    Fizz Buzz KasperKivimaeki 🥇 56
    brainfuck KasperKivimaeki 206
    Divisors KasperKivimaeki 62
    Fibonacci KasperKivimaeki 40
    Number Spiral emplv 🥈 103
    12 Days of Christmas TomvdPeet 501
    Roman to Arabic TomvdPeet 129
    Fizz Buzz CornerMercury 🥇 56
    γ JOrE20 1,008
    Kolakoski Constant JOrE20 1,008
    Tutorial TomvdPeet 71
    Transpose Sentence TomvdPeet 102
    Diamonds TomvdPeet 96
    Continued Fractions bitsandbeyond 155
    Rule 110 targrik 107
    99 Bottles of Beer Flrnhd2 274
    12 Days of Christmas Flrnhd2 522
    Tongue-twisters prestosilver 541
    Foo Fizz Buzz Bar TomvdPeet 85
    Fizz Buzz TomvdPeet 🥇 56
    Polyominoes targrik 🥉 312
    π Carlos-EAC 1,008
    Lucky Numbers sean-niemann 74
    Tower of Hanoi xsot 🥇 54
    Tower of Hanoi DialFrost 61
    Tower of Hanoi CaedenHarper 3,582
    Tower of Hanoi sean-niemann 🥇 54
    Star Wars GPT TomvdPeet 232
    Spelling Numbers dokutan 1,045
    Lucky Tickets dokutan 3,836
    SI Units targrik 🥈 601
    Arabic to Roman targrik 🥈 124
    Tower of Hanoi edsrzf 61
    Quine snoozingnewt 44
    Van Eck Sequence KatieLG 1,731
    Vampire Numbers KatieLG 1,053