12 Days of Christmas
932
Abundant Numbers
760
Arithmetic Numbers
667
961
Arrows
821
Ascending Primes
1,000
Christmas Trees
1,000
Collatz
971
CSS Colors
1,000
DFA Simulator
1,000
Diamonds
1,000
Divisors
696
1,000
Evil Numbers
611
1,000
Factorial Factorisation
500
Fibonacci
941
683
809
947
Fizz Buzz
925
847
983
Foo Fizz Buzz Bar
988
Fractions
1,000
Intersection
831
Leap Years
718
737
878
Levenshtein Distance
915
Leyland Numbers
1,000
Look and Say
1,000
Medal Tally
1,000
Morse Decoder
653
Musical Chords
1,000
595
Niven Numbers
893
Niven Numbers (Long)
872
926
Odious Numbers
571
1,000
Ordinal Numbers
619
931
Pernicious Numbers
829
Poker
1,000
784
Prime Numbers
676
Quine
1,000
969
Recamán
789
Repeating Decimals
556
Reverse Polish Notation
805
Rock-paper-scissors-Spock-lizard
918
Sierpiński Triangle
737
Spelling Numbers
Ten-pin Bowling
1,000
Tongue-twisters
965
United States
1,000
952
Vampire Numbers
922
φ
789
√2
829