12 Days of Christmas
30th
24 Game
4th
99 Bottles of Beer
22nd
Abundant Numbers
48th
Abundant Numbers (Long)
31st
Arabic to Roman
21st
Arithmetic Numbers
27th
Arrows
11th
Ascending Primes
10th
ASCII Table
21st
Billiards
10th
brainfuck
17th
Card Number Validation
13th
Catalan Numbers
19th
Catalan’s Constant
4th
Christmas Trees
23rd
Collatz
24th
CSS Colors
11th
Cubes
8th
Day of Week
21st
DFA Simulator
7th
Diamonds
13th
Divisors
51st
Emirp Numbers
42nd
Emirp Numbers (Long)
16th
Emojify
15th
Evil Numbers
43rd
Evil Numbers (Long)
30th
Factorial Factorisation
9th
Farey Sequence
20th
Fibonacci
1st
Fizz Buzz
86th2,259th
Foo Fizz Buzz Bar
28th
Forsyth–Edwards Notation
14th
Fractions
22nd
Game of Life
9th
Gijswijt’s Sequence
9th
Happy Numbers
57th
Happy Numbers (Long)
26th
Hexdump
12th
Hilbert Curve
5th
Intersection
13th
Inventory Sequence
14th
ISBN
11th
Jacobi Symbol
33rd
Kaprekar Numbers
11th
Kolakoski Constant
7th
Kolakoski Sequence
20th
Leap Years
35th
Levenshtein Distance
7th
Leyland Numbers
11th
ln 2
4th
Look and Say
9th
Lucky Numbers
32nd
Lucky Tickets
12th
Mahjong
4th
Mandelbrot
11th
Maze
11th
Medal Tally
8th
Morse Decoder
8th
Morse Encoder
9th
Musical Chords
8th
N Queens
8th
Niven Numbers
53rd
Niven Numbers (Long)
20th
Number Spiral
15th
Odious Numbers
36th
Odious Numbers (Long)
25th
Ordinal Numbers
20th
PalindromemordnilaP
6th
Pangram Grep
25th
Partition Numbers
14th
Pascal’s Triangle
32nd
Pernicious Numbers
45th
Pernicious Numbers (Long)
19th
Poker
11th
Polyominoes
3rd
Prime Numbers
44th
Prime Numbers (Long)
25th
Proximity Grid
5th
QR Decoder
6th
Quine
99th
Recamán
14th
Repeating Decimals
8th
Reverse Polish Notation
9th
Reversi
6th
Rijndael S-box
8th
Rock-paper-scissors-Spock-lizard
15th
Roman to Arabic
15th
ROT13
12th
Rule 110
13th
Scrambled Sort
8th
Set
6th
Seven Segment
13th
SI Units
4th
Sierpiński Triangle
23rd
Smith Numbers
12th
Spelling Numbers
8th
Star Wars GPT
3rd
Star Wars Opening Crawl
3rd
Sudoku
5th
Sudoku (Fill-in)
5th
Ten-pin Bowling
7th
Tic-tac-toe
8th
Time Distance
9th
Tongue-twisters
16th
Topological Sort
4th
Transpose Sentence
10th
Trinomial Triangle
5th
United States
18th
Vampire Numbers
8th
Van Eck Sequence
16th
Zeckendorf Representation
12th
Zodiac Signs
8th
π
16th
τ
13th
φ
20th
√2
28th
𝑒
18th