12 Days of Christmas
842
99 Bottles of Beer
738
Arrows
358
Billiards
310
Card Number Validation
356
Christmas Trees
577
Collatz
675
CSS Colors
207
Day of Week
665
Divisors
831
Emojify
354
Factorial Factorisation
128
Fibonacci
700
Fizz Buzz
835
Foo Fizz Buzz Bar
759
Forsyth–Edwards Notation
444
Happy Numbers
349
ISBN
666
Leap Years
649
ln 2
120
Morse Decoder
237
Morse Encoder
337
Niven Numbers
568
Ordinal Numbers
646
Pangram Grep
631
Pernicious Numbers
410
Prime Numbers
681
Prime Numbers (Long)
706
Repeating Decimals
844
Rock-paper-scissors-Spock-lizard
527475
ROT13
382
Seven Segment
300
Sudoku
516
Tic-tac-toe
313
Tongue-twisters
546
Trinomial Triangle
40
United States
205
π
136
τ
133
√2
129