12 Days of Christmas
2nd
24 Game
7th
99 Bottles of Beer
3rd
Abundant Numbers
8th
Abundant Numbers (Long)
12th
Arabic to Roman
4th
Arithmetic Numbers
13th
Arrows
10th
Ascending Primes
10th
ASCII Table
9th
Billiards
4th
brainfuck
4th
Card Number Validation
16th
Catalan Numbers
1st
Catalan’s Constant
14th
Christmas Trees
8th
Collatz
28th
CSS Colors
5th
Cubes
💎
Day of Week
1st
DFA Simulator
6th
Diamonds
23rd
Divisors
1st
Emirp Numbers
6th
Emirp Numbers (Long)
5th
Emojify
19th
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
9th
Farey Sequence
17th
Fibonacci
1st
Fizz Buzz
16th
Foo Fizz Buzz Bar
14th
Forsyth–Edwards Notation
9th
Fractions
1st
Game of Life
6th
Gijswijt’s Sequence
6th
Happy Numbers
1st
Happy Numbers (Long)
15th
Hexdump
9th
Intersection
12th
Inventory Sequence
11th
ISBN
10th
Jacobi Symbol
8th
Kaprekar Numbers
10th
Kolakoski Constant
9th
Kolakoski Sequence
12th
Leap Years
12th
Levenshtein Distance
1st
Leyland Numbers
1st
ln 2
1st
Look and Say
4th
Lucky Numbers
3rd
Lucky Tickets
19th
Mahjong
4th
Maze
14th
Medal Tally
9th
Morse Decoder
8th
Morse Encoder
8th
Musical Chords
4th
N Queens
9th
Niven Numbers
1st
Niven Numbers (Long)
15th
Number Spiral
16th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
3rd
PalindromemordnilaP
7th
Pangram Grep
11th
Pascal’s Triangle
15th
Pernicious Numbers
59th
Pernicious Numbers (Long)
1st
Poker
3rd
Polyominoes
6th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
2nd
QR Decoder
6th
Quine
1st
Recamán
23rd
Repeating Decimals
1st
Reverse Polish Notation
13th
Reversi
11th
Rijndael S-box
8th
Rock-paper-scissors-Spock-lizard
5th
Roman to Arabic
18th
ROT13
13th
Rule 110
6th
Seven Segment
1st
SI Units
3rd
Sierpiński Triangle
8th
Smith Numbers
7th
Spelling Numbers
11th
Star Wars Opening Crawl
5th
Sudoku
7th
Sudoku (Fill-in)
4th
Ten-pin Bowling
10th
Tic-tac-toe
49th
Time Distance
12th
Tongue-twisters
12th
Transpose Sentence
9th
United States
23rd
Vampire Numbers
5th
Van Eck Sequence
14th
Zeckendorf Representation
7th
Zodiac Signs
11th
γ
7th
λ
5th
π
7th
τ
5th
φ
1st
√2
1st
𝑒
1st