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
Trinomial Triangle HumanoidCPU 2,099
Tic-tac-toe MeWhenI 155
brainfuck KasperKivimaeki 💎 201
Fibonacci desecaw13 92
Fibonacci CaedenHarper 66
Tongue-twisters CaedenHarper 555
Ascending Primes CaedenHarper 544
Gijswijt’s Sequence CaedenHarper 2,032
Emirp Numbers (Long) CaedenHarper 1,188
Sierpiński Triangle CaedenHarper 586
Diamonds CaedenHarper 1,135
Leyland Numbers CaedenHarper 918
Niven Numbers (Long) CaedenHarper 7,470
Pascal’s Triangle CaedenHarper 801
Evil Numbers (Long) CaedenHarper 1,982
Pernicious Numbers (Long) CaedenHarper 20,694
Recamán CaedenHarper 929
Collatz CaedenHarper 3,258
Van Eck Sequence CaedenHarper 2,587
Odious Numbers (Long) CaedenHarper 1,977
Leap Years CaedenHarper 762
Divisors CaedenHarper 1,198
Abundant Numbers (Long) CaedenHarper 996
Niven Numbers CaedenHarper 123
Foo Fizz Buzz Bar CaedenHarper 5,751
Inventory Sequence CaedenHarper 2,655
Prime Numbers CaedenHarper 103
Evil Numbers CaedenHarper 102
Odious Numbers CaedenHarper 105
Lucky Numbers CaedenHarper 4,852
Pernicious Numbers CaedenHarper 132
Smith Numbers CaedenHarper 1,856
Arithmetic Numbers CaedenHarper 37,674
Happy Numbers CaedenHarper 139
12 Days of Christmas CaedenHarper 2,401
Emirp Numbers CaedenHarper 168
Happy Numbers (Long) CaedenHarper 584
Prime Numbers (Long) CaedenHarper 5,980
Christmas Trees CaedenHarper 577
Kolakoski Sequence CaedenHarper 2,032
Vampire Numbers CaedenHarper 1,103
Look and Say CaedenHarper 1,311
Abundant Numbers CaedenHarper 195
Kaprekar Numbers CaedenHarper 472
Farey Sequence CaedenHarper 4,386
Number Spiral CaedenHarper 332
99 Bottles of Beer CaedenHarper 11,917
Cubes CaedenHarper 4,133
Rule 110 CaedenHarper 15,884
N Queens CaedenHarper 1,278
24 Game CaedenHarper 12,464
Polyominoes CaedenHarper 3,596
ASCII Table CaedenHarper 306
Rijndael S-box CaedenHarper 800
ROT13 sean-niemann 98
Catalan Numbers CaedenHarper 2,905
Ten-pin Bowling sean-niemann 195
λ JunkIce 1,044
Morse Decoder sean-niemann 🥇 141
Niven Numbers (Long) sean-niemann 🥇 72
Rijndael S-box MostParsingVex 🥈 114
𝑒 CaedenHarper 1,036
√2 CaedenHarper 1,036
φ CaedenHarper 1,036
τ CaedenHarper 1,036
π CaedenHarper 1,036
λ CaedenHarper 1,036
γ CaedenHarper 1,036
ln 2 CaedenHarper 1,036
Kolakoski Constant CaedenHarper 1,036
Factorial Factorisation CaedenHarper 895
Catalan’s Constant CaedenHarper 1,036
Rijndael S-box AdrienHache 💎 95
ASCII Table sean-niemann 🥈 136
99 Bottles of Beer DialFrost 267