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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 Bytes Time Submitted
    Set JOrE20 240
    Card Number Validation JOrE20 819
    24 Game JOrE20 13,814
    Prime Numbers michelebastione 81
    Prime Numbers (Long) michelebastione 82
    Tutorial michelebastione 133
    Connect Four bitsandbeyond 352
    Connect Four tomh1012 388
    Evil Numbers TRexOnGit 91
    Intersection Shanethegamer 202
    Rock-paper-scissors-Spock-lizard MiffOttah 429
    United States MiffOttah 280
    Star Wars GPT MiffOttah 306
    Tic-tac-toe MiffOttah 200
    Foo Fizz Buzz Bar MiffOttah 132
    Leap Years MiffOttah 76
    Calendar MiffOttah 268
    Inventory Sequence michelebastione 96
    Seven Segment Orsailius 155
    Tutorial zgialor-lab 127
    𝑒 michelebastione 147
    Taxicab Numbers kasarino 207
    Alphabetic Numbers edsrzf 🥉 197
    Leyland Numbers kasarino 222
    Morse Decoder kasarino 1,762
    Snake Shanethegamer 208
    Set kmathis22 239
    Poker kmathis22 438
    Card Number Validation kmathis22 163
    24 Game kmathis22 450
    Alphabetic Numbers Yax42 🥈 188
    Diamonds namelessiw 114
    Gray Code Decoder michelebastione 96
    Pangram Grep michelebastione 96
    Forsyth–Edwards Notation namelessiw 125
    Rijndael S-box Natanaelel 297
    Odious Numbers (Long) tomh1012 68
    Card Number Validation prestosilver 122
    Collatz Skellybob56 87
    PalindromemordnilaP namelessiw 109
    Gray Code Decoder tomh1012 96
    Gray Code Encoder tomh1012 🥇 66
    Alphabetic Numbers tomh1012 333
    Spelling Numbers tomh1012 405
    Rijndael S-box oaiqjuy 244
    Evil Numbers (Long) oaiqjuy 67
    Odious Numbers (Long) oaiqjuy 68
    Leap Years oaiqjuy 68
    Abundant Numbers oaiqjuy 87
    Cubes oaiqjuy 344
    Lucky Tickets oaiqjuy 212
    Musical Chords oaiqjuy 311
    Divisors Orsailius 81
    Leap Years Steffan153 🥇 55
    brainfuck KasperKivimaeki 🥈 187
    Alphabetic Numbers CaedenHarper 214
    Rule 110 MiffOttah 179
    brainfuck MiffOttah 307
    ISBN MiffOttah 103
    12 Days of Christmas MiffOttah 494
    ASCII Table MiffOttah 143
    Day of Week MiffOttah 72
    Alphabetic Numbers MiffOttah 228
    Spelling Numbers MiffOttah 403
    Levenshtein Distance MiffOttah 320
    Rectangle Fill Shanethegamer 193
    Multitap Input namelessiw 🥈 123
    Gray Code Encoder Shanethegamer 71
    Smith Numbers namelessiw 131
    Partition Numbers michelebastione 107
    Pernicious Numbers scpchicken 🥇 55
    Rijndael S-box kmathis22 800
    Calendar namelessiw 220
    Niven Numbers scpchicken 🥇 60
    Arithmetic Numbers juliansiebert 124
    Divisors juliansiebert 112
    Calendar edsrzf 215
    Recamán tungstengmd 90
    Leyland Numbers juliansiebert 154
    Rijndael S-box emgordon154 167
    Tongue-twisters Orsailius 460
    Nim albanian-laundromat 137
    Ulam Sequence HumanoidCPU 1,111
    Alphabetic Numbers KatieLG 3,085
    Diamonds DihydrogenMonoxideH2O 298
    Alphabetic Numbers dokutan 1,958
    Ulam Sequence namelessiw 120
    Leap Years denkyuu1 68
    Ulam Sequence Shanethegamer 1,111
    Sierpiński Triangle Steffan153 🥇 68
    Set Steffan153 🥇 129
    Set namelessiw 146
    Poker namelessiw 435
    Medal Tally namelessiw 170
    Mahjong namelessiw 385
    Tower of Hanoi scpchicken 74
    Emirp Numbers (Long) Steffan153 🥉 111
    Leap Years Lydxn 🥇 55
    Set AidanWalter 227
    Poker AidanWalter 461