12 Days of Christmas
842
99 Bottles of Beer
737
Arrows
355
Billiards
307
Card Number Validation
355
Christmas Trees
576
Collatz
674
CSS Colors
206
Day of Week
663
Divisors
829
Emojify
353
Factorial Factorisation
127
Fibonacci
699
Fizz Buzz
835
Foo Fizz Buzz Bar
758
Forsyth–Edwards Notation
461
Happy Numbers
348
ISBN
662
Leap Years
649
ln 2
119
Morse Decoder
236
Morse Encoder
336
Niven Numbers
567
Ordinal Numbers
643
Pangram Grep
630
Pernicious Numbers
409
Prime Numbers
680
Prime Numbers (Long)
704
Repeating Decimals
834
Rock-paper-scissors-Spock-lizard
525474
ROT13
376
Seven Segment
299
Sudoku
516
Tic-tac-toe
311
Tongue-twisters
545
Trinomial Triangle
39
United States
208
π
136
τ
132
√2
128