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
Rock-paper-scissors-Spock-lizard Noah-Fox 1,240
Niven Numbers CaedenHarper 71
Tic-tac-toe MeWhenI 334
Tic-tac-toe KasperKivimaeki 141
Tutorial CLOStrophobic 95
Fibonacci desecaw13 78
Pangram Grep Noah-Fox 395
Fibonacci Noah-Fox 194
Fractions Noah-Fox 551
Maze Noah-Fox 1,615
Catalan Numbers CaedenHarper 2,907
Prime Numbers nents 108
ASCII Table CaedenHarper 312
Fractions nents 143
Fizz Buzz nents 125
ASCII Table Noah-Fox 361
Tutorial zacjl 98
Tutorial error256 108
Tutorial emgordon154 133
λ JunkIce 1,043
Rijndael S-box JunkIce 848
12 Days of Christmas MostParsingVex 507
Tutorial KasperKivimaeki 92
Tongue-twisters CaedenHarper 558
Ascending Primes CaedenHarper 547
Gijswijt’s Sequence CaedenHarper 2,035
Emirp Numbers (Long) CaedenHarper 1,191
Sierpiński Triangle CaedenHarper 589
Diamonds CaedenHarper 1,138
Leyland Numbers CaedenHarper 921
Niven Numbers (Long) CaedenHarper 7,473
Pascal’s Triangle CaedenHarper 804
Pernicious Numbers (Long) CaedenHarper 20,697
Recamán CaedenHarper 932
Collatz CaedenHarper 3,261
Van Eck Sequence CaedenHarper 2,590
Odious Numbers (Long) CaedenHarper 1,980
Leap Years CaedenHarper 765
Divisors CaedenHarper 1,201
Abundant Numbers (Long) CaedenHarper 999
Foo Fizz Buzz Bar CaedenHarper 5,754
Inventory Sequence CaedenHarper 2,658
Prime Numbers CaedenHarper 106
Evil Numbers CaedenHarper 105
Odious Numbers CaedenHarper 108
Lucky Numbers CaedenHarper 4,855
Pernicious Numbers CaedenHarper 135
Smith Numbers CaedenHarper 1,859
Arithmetic Numbers CaedenHarper 37,677
Happy Numbers CaedenHarper 142
12 Days of Christmas CaedenHarper 2,404
Emirp Numbers CaedenHarper 171
Happy Numbers (Long) CaedenHarper 587
Prime Numbers (Long) CaedenHarper 5,983
Christmas Trees CaedenHarper 580
Kolakoski Sequence CaedenHarper 2,035
Vampire Numbers CaedenHarper 1,106
Look and Say CaedenHarper 1,314
Abundant Numbers CaedenHarper 198
Kaprekar Numbers CaedenHarper 475
Farey Sequence CaedenHarper 4,389
Number Spiral CaedenHarper 335
99 Bottles of Beer CaedenHarper 11,920
Cubes CaedenHarper 4,136
Rule 110 CaedenHarper 15,887
N Queens CaedenHarper 1,281
24 Game CaedenHarper 12,467
Polyominoes CaedenHarper 3,599
Fizz Buzz Lilspartan 153
N Queens klixel 316
Rijndael S-box CaedenHarper 803
𝑒 CaedenHarper 1,035
√2 CaedenHarper 1,035
φ CaedenHarper 1,035
τ CaedenHarper 1,035