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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
    Topological Sort edsrzf 💎 140
    Topological Sort albanian-laundromat 🥈 147
    Musical Chords edsrzf 🥉 125
    Star Wars Opening Crawl albanian-laundromat 💎 334
    Alphabetic Numbers CaedenHarper 3,916
    Tic-tac-toe JayXon 🥇 96
    Tic-tac-toe snoozingnewt 114
    Tic-tac-toe Steffan153 🥇 96
    Proximity Grid edsrzf 🥉 150
    Reversi edsrzf 🥉 138
    Tic-tac-toe edsrzf 🥉 102
    Divisors Orsailius 116
    Sudoku (Fill-in) albanian-laundromat 🥈 262
    Leap Years Steffan153 🥇 50
    Calendar Steffan153 💎 187
    Calendar edsrzf 🥈 208
    Collatz Steffan153 🥇 70
    Fibonacci scpchicken 🥇 45
    Pangram Grep prestosilver 137
    ISBN Lydxn 🥇 83
    Alphabetic Numbers LostSyntax21 💎 1,000
    Tower of Hanoi scpchicken 73
    Ulam Sequence HumanoidCPU 1,114
    Alphabetic Numbers KatieLG 🥉 3,123
    Alphabetic Numbers dokutan 🥈 1,932
    Ulam Sequence Shanethegamer 1,114
    Gray Code Encoder Lydxn 🥇 68
    Set Steffan153 💎 146
    Look and Say Steffan153 💎 103
    Niven Numbers raszpi 🥇 53
    Emirp Numbers raszpi 150
    Divisors raszpi 🥇 73
    Fibonacci Herbert00709 🥇 45
    Fibonacci roupiq 🥇 45
    Collatz raszpi 71
    Emirp Numbers (Long) Steffan153 🥈 105
    Leap Years Lydxn 🥇 50
    Continued Fractions albanian-laundromat 🥉 143
    Niven Numbers (Long) edsrzf 71
    Niven Numbers (Long) Steffan153 🥇 66
    Fibonacci Matter1024 48
    Leap Years NacMacFigl 69
    Intersection Steffan153 💎 134
    Ordinal Numbers Steffan153 💎 83
    99 Bottles of Beer madeforlosers 12,200
    24 Game madeforlosers 13,810
    Taxicab Numbers snoozingnewt 161
    Taxicab Numbers edsrzf 🥈 102
    Taxicab Numbers Steffan153 💎 95
    Taxicab Numbers dokutan 2,824
    Nim Shanethegamer 123
    Calendar Matter1024 🥉 234
    Taxicab Numbers CaedenHarper 4,181
    Cubes Steffan153 💎 173
    Dragon Curve dokutan 1,216
    Taxicab Numbers Matter1024 🥉 122
    Factorial Factorisation JayXon 💎 110
    Factorial Factorisation Steffan153 🥈 115
    Ordinal Numbers edsrzf 93
    λ JayXon 💎 204
    γ Steffan153 🥇 125
    Kolakoski Sequence madeforlosers 2,017
    ISBN JayXon 🥇 83
    ISBN Steffan153 🥇 83
    Dragon Curve HumanoidCPU 10,294
    Pernicious Numbers (Long) Steffan153 🥇 61
    Dragon Curve Shanethegamer 10,294
    𝑒 albanian-laundromat 145
    Evil Numbers madeforlosers 111
    Flags bitsandbeyond 701
    π Steffan153 🥈 109
    Cubes madeforlosers 4,228
    Odious Numbers madeforlosers 115
    Evil Numbers (Long) madeforlosers 2,467
    Farey Sequence madeforlosers 5,145
    Odious Numbers (Long) madeforlosers 2,461
    Abundant Numbers madeforlosers 225
    Abundant Numbers (Long) madeforlosers 1,226
    Prime Numbers madeforlosers 112
    Look and Say madeforlosers 1,315
    Prime Numbers (Long) madeforlosers 7,193
    Divisors madeforlosers 1,282
    Foo Fizz Buzz Bar madeforlosers 6,735
    12 Days of Christmas madeforlosers 2,498
    Tongue-twisters madeforlosers 553
    Niven Numbers (Long) madeforlosers 8,992
    Fizz Buzz madeforlosers 529
    Trinomial Triangle Steffan153 🥈 91
    λ Steffan153 🥈 209
    Musical Chords Steffan153 🥇 121
    Musical Chords JayXon 🥇 121
    Morse Encoder Steffan153 🥇 152
    Alphabetic Numbers Shanethegamer 3,916
    Morse Encoder JayXon 🥇 152
    Leap Years JayXon 🥇 50
    Pernicious Numbers (Long) emplv 63
    Fizz Buzz Steffan153 🥇 76
    Fizz Buzz Arkadios200 94
    Emirp Numbers (Long) MeWhenI 116
    Lucky Numbers Steffan153 🥇 75