12 Days of Christmas
4th
24 Game
14th
99 Bottles of Beer
4th
Abundant Numbers
7th
Abundant Numbers (Long)
26th
Arabic to Roman
7th
Arithmetic Numbers
21st
Arrows
15th
Ascending Primes
14th
ASCII Table
12th
Billiards
7th
brainfuck
6th
Card Number Validation
39th
Catalan Numbers
1st
Catalan’s Constant
28th
Christmas Trees
3rd
Collatz
88th
CSS Colors
4th
Cubes
2nd
Day of Week
1st
DFA Simulator
10th
Diamonds
40th
Divisors
1st
Emirp Numbers
8th
Emirp Numbers (Long)
5th
Emojify
24th
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
15th
Farey Sequence
24th
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
12th
Fractions
1st
Game of Life
12th
Gijswijt’s Sequence
10th
Happy Numbers
1st
Happy Numbers (Long)
26th
Hexdump
1st
Intersection
24th
Inventory Sequence
26th
ISBN
17th
Jacobi Symbol
11th
Kaprekar Numbers
14th
Kolakoski Constant
21st
Kolakoski Sequence
17th
Leap Years
12th
Levenshtein Distance
1st
Leyland Numbers
1st
ln 2
1st
Look and Say
7th
Lucky Numbers
11th
Lucky Tickets
35th
Mahjong
8th
Maze
28th
Medal Tally
18th
Morse Decoder
12th
Morse Encoder
11th
Musical Chords
9th
N Queens
18th
Niven Numbers
1st
Niven Numbers (Long)
15th
Number Spiral
25th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
4th
PalindromemordnilaP
18th
Pangram Grep
18th
Partition Numbers
17th
Pascal’s Triangle
1st
Pernicious Numbers
61st
Pernicious Numbers (Long)
1st
Poker
4th
Polyominoes
10th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
4th
QR Decoder
14th
Quine
1st
Recamán
51st
Repeating Decimals
1st
Reverse Polish Notation
19th
Reversi
26th
Rijndael S-box
14th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
22nd
ROT13
29th
Rule 110
8th
Set
6th
Seven Segment
1st
SI Units
5th
Sierpiński Triangle
13th
Smith Numbers
12th
Spelling Numbers
17th
Star Wars Opening Crawl
9th
Sudoku
8th
Sudoku (Fill-in)
9th
Ten-pin Bowling
21st
Tic-tac-toe
12th
Time Distance
21st
Tongue-twisters
6th
Transpose Sentence
16th
United States
42nd
Vampire Numbers
7th
Van Eck Sequence
20th
Zeckendorf Representation
4th
Zodiac Signs
13th
γ
12th
λ
7th
π
10th
τ
7th
φ
1st
√2
1st
𝑒
1st