The Tic-tac-toe hole will go live in approximately . Why not try and solve it ahead of time?

Recent Solutions

Hole Golfer Bytes Submitted
Tic-tac-toe lyphyser 51
Pangram Grep prplz 50
Rijndael S-box prplz 64
Quine CaedenHarper 345
Foo Fizz Buzz Bar jared-hughes 🥈 96
Fizz Buzz jared-hughes 77
Catalan Numbers CaedenHarper 2,893
Tongue-twisters CaedenHarper 544
Ascending Primes CaedenHarper 533
Gijswijt’s Sequence CaedenHarper 2,021
Emirp Numbers (Long) CaedenHarper 1,177
Sierpiński Triangle CaedenHarper 575
Diamonds CaedenHarper 1,124
Leyland Numbers CaedenHarper 907
Niven Numbers (Long) CaedenHarper 7,459
Pascal’s Triangle CaedenHarper 790
Evil Numbers (Long) CaedenHarper 1,971
Pernicious Numbers (Long) CaedenHarper 20,683
Recamán CaedenHarper 918
Collatz CaedenHarper 3,247
Van Eck Sequence CaedenHarper 2,576
Odious Numbers (Long) CaedenHarper 1,966
Leap Years CaedenHarper 751
Divisors CaedenHarper 1,187
Abundant Numbers (Long) CaedenHarper 985
Niven Numbers CaedenHarper 112
Fibonacci CaedenHarper 155
Foo Fizz Buzz Bar CaedenHarper 5,740
Inventory Sequence CaedenHarper 2,644
Prime Numbers CaedenHarper 92
Evil Numbers CaedenHarper 91
Odious Numbers CaedenHarper 94
Lucky Numbers CaedenHarper 4,841
Pernicious Numbers CaedenHarper 121
Smith Numbers CaedenHarper 1,845
Arithmetic Numbers CaedenHarper 37,663
Happy Numbers CaedenHarper 128
12 Days of Christmas CaedenHarper 2,390
Emirp Numbers CaedenHarper 157
Happy Numbers (Long) CaedenHarper 573
Prime Numbers (Long) CaedenHarper 5,969
Christmas Trees CaedenHarper 566
Kolakoski Sequence CaedenHarper 2,021
Vampire Numbers CaedenHarper 1,092
Look and Say CaedenHarper 1,300
Abundant Numbers CaedenHarper 184
Kaprekar Numbers CaedenHarper 461
Farey Sequence CaedenHarper 4,375
ASCII Table CaedenHarper 293
Number Spiral CaedenHarper 321
99 Bottles of Beer CaedenHarper 11,906
Cubes CaedenHarper 4,122
Rule 110 CaedenHarper 15,873
N Queens CaedenHarper 1,267
24 Game CaedenHarper 12,453
Polyominoes CaedenHarper 3,585
𝑒 CaedenHarper 1,024
√2 CaedenHarper 1,024
φ CaedenHarper 1,024
τ CaedenHarper 1,024
π CaedenHarper 1,024
λ CaedenHarper 1,024
γ CaedenHarper 1,024
Rijndael S-box CaedenHarper 789
ln 2 CaedenHarper 1,024
Kolakoski Constant CaedenHarper 1,024
Factorial Factorisation CaedenHarper 883
Catalan’s Constant CaedenHarper 1,024
Ten-pin Bowling AdrienHache 💎 108
DFA Simulator AdrienHache 💎 88
Rijndael S-box KasperKivimaeki 85
Levenshtein Distance lyphyser 💎 94
Fibonacci sisyphus-ppcg 573,611
Tutorial JunkIce 111
𝑒 madeforlosers 1,024