12 Days of Christmas
10th
24 Game
22nd
99 Bottles of Beer
41st
Abundant Numbers
12th
Abundant Numbers (Long)
8th
Alphabetic Numbers
12th
Arabic to Roman
21st
Arithmetic Numbers
27th
Arrows
18th
Ascending Primes
3rd
ASCII Table
24th
Billiards
16th
brainfuck
37th
Calendar
1st
Card Number Validation
15th
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
11th
Diamonds
10th
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
31st
Fractions
1st
Game of Life
14th
Gijswijt’s Sequence
18th
Gray Code Decoder
14th
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
36th
Hexdump
4th
Hilbert Curve
9th
Intersection
40th
Inventory Sequence
1st
ISBN
35th
Jacobi Symbol
14th
Kaprekar Numbers
25th
Kolakoski Constant
10th
Kolakoski Sequence
1st
Leap Years
18th
Levenshtein Distance
1st
Leyland Numbers
115th
ln 2
1st
Look and Say
15th
Lucky Numbers
1st
Lucky Tickets
1st
Mahjong
8th
Mandelbrot
19th
Maze
10th
Medal Tally
12th
Minesweeper
11th
Morse Decoder
22nd
Morse Encoder
3rd
Multitap Input
11th
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
45th
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Poker
9th
Polyominoes
13th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
25th
QR Decoder
19th
Quine
1st
Recamán
52nd
Repeating Decimals
1st
Reverse Polish Notation
22nd
Reversi
6th
Rijndael S-box
18th
Rock-paper-scissors-Spock-lizard
12th
Roman to Arabic
66th
ROT13
1st
Rule 110
42nd
Scrambled Sort
1st
Set
15th
Seven Segment
21st
SI Units
24th
Sierpiński Triangle
35th
Smith Numbers
9th
Spelling Numbers
6th
Star Wars GPT
1st
Star Wars Opening Crawl
7th
Sudoku
15th
Sudoku (Fill-in)
10th
Taxicab Numbers
1st
Ten-pin Bowling
18th
Tic-tac-toe
12th
Time Distance
19th
Tongue-twisters
33rd
Topological Sort
20th
Tower of Hanoi
1st
Transpose Sentence
5th
Trinomial Triangle
1st
United States
16th
Vampire Numbers
30th
Van Eck Sequence
25th
Zeckendorf Representation
14th
Zodiac Signs
29th
γ
24th
λ
6th
π
1st
τ
13th
φ
50th
√2
1st
𝑒
1st