12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
5th
Abundant Numbers (Long)
8th
Arabic to Roman
Arithmetic Numbers
7th
Arrows
Ascending Primes
ASCII Table
4th
brainfuck
Card Number Validation
Catalan Numbers
14th
Catalan’s Constant
Christmas Trees
Collatz
9th
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
19th
Emirp Numbers
12th
Emirp Numbers (Long)
6th
Emojify
💎
Evil Numbers
15th
Evil Numbers (Long)
10th
Factorial Factorisation
Farey Sequence
Fibonacci
43rd
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
3rd
Happy Numbers
9th
Happy Numbers (Long)
Hexdump
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
3rd
Kolakoski Constant
Kolakoski Sequence
Leap Years
14th
Levenshtein Distance
Leyland Numbers
ln 2
7th
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
Niven Numbers
12th
Niven Numbers (Long)
Number Spiral
💎
Odious Numbers
19th
Odious Numbers (Long)
9th
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
10th
Pernicious Numbers (Long)
3rd
Poker
Polyominoes
💎
Prime Numbers
17th
Prime Numbers (Long)
10th
Proximity Grid
3rd
QR Decoder
Quine
1st
1st
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
5th
Roman to Arabic
Rule 110
Seven Segment
SI Units
2nd
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
💎
18th
3rd
Transpose Sentence
United States
Vampire Numbers
1st
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
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