The Calendar hole will go live in approximately 9 days. Why not try and solve it ahead of time?

solisolu

48,692

•

43,568

🥇8

•

🥈0

•

🥉0

⛳

62 / 123 Holes

🔣

24 / 62 Langs

🏆

27 / 98 Cheevos

📅

1 Oct 2025

24 Game

99 Bottles of Beer

Abundant Numbers

Abundant Numbers (Long)

Arabic to Roman

Arithmetic Numbers

Arrows

Ascending Primes

ASCII Table

Billiards

Card Number Validation

Catalan Numbers

Christmas Trees

Collatz

Diamonds

Divisors

Emirp Numbers

Emirp Numbers (Long)

Emojify

Evil Numbers

Evil Numbers (Long)

Factorial Factorisation

Farey Sequence

Fibonacci

475 874 913 933 946 884 817 695 941 500 504 872 981 908 961 750 764 769 987 750 871 876 763 606

Fizz Buzz

Foo Fizz Buzz Bar

Fractions

Happy Numbers

Intersection

Inventory Sequence

ISBN

Kolakoski Constant

Kolakoski Sequence

Leap Years

Leyland Numbers

Niven Numbers

Niven Numbers (Long)

Odious Numbers

Odious Numbers (Long)

Ordinal Numbers

Pangram Grep

Pascal’s Triangle

Pernicious Numbers

Pernicious Numbers (Long)

Prime Numbers

Prime Numbers (Long)

ROT13

Rule 110

Scrambled Sort

Set

Seven Segment

Sierpiński Triangle

Tic-tac-toe

Trinomial Triangle

Vampire Numbers

Van Eck Sequence

Zeckendorf Representation

π

τ

φ

√2

𝑒