12 Days of Christmas
10th
24 Game
22nd
99 Bottles of Beer
40th
Abundant Numbers
12th
Abundant Numbers (Long)
8th
Alphabetic Numbers
12th
Arabic to Roman
21st
Arithmetic Numbers
25th
Arrows
18th
Ascending Primes
3rd
ASCII Table
24th
Billiards
15th
brainfuck
37th
Calendar
1st
Card Number Validation
14th
Catalan Numbers
1st
Catalan’s Constant
1st
Christmas Trees
16th
Collatz
11th
Continued Fractions
1st
CSS Colors
10th
Cubes
29th
Day of Week
1st
DFA Simulator
9th
Diamonds
9th
Divisors
1st
Emirp Numbers
16th
Emirp Numbers (Long)
10th
Emojify
19th
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
17th
Farey Sequence
21st
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
30th
Fractions
1st
Game of Life
12th
Gijswijt’s Sequence
17th
Gray Code Decoder
11th
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
36th
Hexdump
1st
Hilbert Curve
6th
Intersection
40th
Inventory Sequence
1st
ISBN
34th
Jacobi Symbol
13th
Kaprekar Numbers
24th
Kolakoski Constant
9th
Kolakoski Sequence
1st
Leap Years
18th
Levenshtein Distance
1st
Leyland Numbers
114th
ln 2
1st
Look and Say
14th
Lucky Numbers
1st
Lucky Tickets
1st
Mahjong
8th
Mandelbrot
18th
Maze
11th
Medal Tally
12th
Minesweeper
11th
Morse Decoder
22nd
Morse Encoder
3rd
Multitap Input
10th
Musical Chords
12th
N Queens
12th
Niven Numbers
1st
Niven Numbers (Long)
22nd
Number Spiral
29th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
7th
PalindromemordnilaP
1st
Pangram Grep
1st
Partition Numbers
43rd
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Poker
9th
Polyominoes
12th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
24th
QR Decoder
18th
Quine
1st
Recamán
50th
Repeating Decimals
1st
Reverse Polish Notation
22nd
Reversi
5th
Rijndael S-box
18th
Rock-paper-scissors-Spock-lizard
12th
Roman to Arabic
66th
ROT13
1st
Rule 110
41st
Scrambled Sort
1st
Set
13th
Seven Segment
21st
SI Units
22nd
Sierpiński Triangle
34th
Smith Numbers
7th
Spelling Numbers
6th
Star Wars GPT
1st
Star Wars Opening Crawl
6th
Sudoku
15th
Sudoku (Fill-in)
9th
Taxicab Numbers
1st
Ten-pin Bowling
15th
Tic-tac-toe
12th
Time Distance
19th
Tongue-twisters
33rd
Topological Sort
19th
Tower of Hanoi
1st
Transpose Sentence
5th
Trinomial Triangle
1st
United States
16th
Vampire Numbers
29th
Van Eck Sequence
24th
Zeckendorf Representation
14th
Zodiac Signs
29th
γ
24th
λ
5th
π
1st
τ
11th
φ
49th
√2
1st
𝑒
1st