12 Days of Christmas
842
99 Bottles of Beer
738
Arrows
349
Billiards
305
Card Number Validation
352
Christmas Trees
576
Collatz
674
CSS Colors
205
Day of Week
663
Divisors
829
Emojify
352
Factorial Factorisation
127
Fibonacci
699
Fizz Buzz
835
Foo Fizz Buzz Bar
758
Forsyth–Edwards Notation
461
Happy Numbers
348
ISBN
660
Leap Years
649
ln 2
119
Morse Decoder
236
Morse Encoder
335
Niven Numbers
567
Ordinal Numbers
642
Pangram Grep
630
Pernicious Numbers
409
Prime Numbers
680
Prime Numbers (Long)
704
Repeating Decimals
844
Rock-paper-scissors-Spock-lizard
525474
ROT13
374
Seven Segment
298
Sudoku
513
Tic-tac-toe
309
Tongue-twisters
545
Trinomial Triangle
39
United States
207
π
136
τ
132
√2
128