12 Days of Christmas
841
99 Bottles of Beer
738
Arrows
349
Billiards
305
Card Number Validation
348
Christmas Trees
574
Collatz
671
CSS Colors
205
Day of Week
693
Divisors
829
Emojify
351
Factorial Factorisation
127
Fibonacci
698
Fizz Buzz
834
Foo Fizz Buzz Bar
755
Forsyth–Edwards Notation
459
Happy Numbers
347
ISBN
656
Leap Years
648
ln 2
119
Morse Decoder
235
Morse Encoder
334
Ordinal Numbers
639
Pernicious Numbers
408
Prime Numbers
679
Prime Numbers (Long)
701
Repeating Decimals
844
Rock-paper-scissors-Spock-lizard
525473
ROT13
373
Sudoku
513
Tic-tac-toe
307
Tongue-twisters
567
United States
207
π
135
τ
132
√2
128