12 Days of Christmas
10th
24 Game
42nd
99 Bottles of Beer
8th
Abundant Numbers
10th
Abundant Numbers (Long)
36th
Arabic to Roman
10th
Arithmetic Numbers
27th
Arrows
23rd
Ascending Primes
36th
ASCII Table
15th
Billiards
13th
brainfuck
10th
Calendar
1st
Card Number Validation
18th
Catalan Numbers
1st
Catalan’s Constant
42nd
Christmas Trees
6th
Collatz
129th
Connect Four
22nd
Continued Fractions
1st
CSS Colors
6th
Cubes
3rd
Day of Week
1st
DFA Simulator
17th
Diamonds
62nd
Divisors
1st
Emirp Numbers
16th
Emirp Numbers (Long)
10th
Emojify
34th
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
24th
Farey Sequence
35th
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
17th
Fractions
1st
Game of Life
25th
Gijswijt’s Sequence
21st
Gray Code Decoder
23rd
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
41st
Hexdump
4th
Hilbert Curve
21st
Intersection
37th
Inventory Sequence
40th
ISBN
25th
Jacobi Symbol
20th
Kaprekar Numbers
6th
Kolakoski Constant
33rd
Kolakoski Sequence
23rd
Leap Years
18th
Levenshtein Distance
1st
Leyland Numbers
1st
ln 2
1st
Look and Say
9th
Lucky Numbers
18th
Lucky Tickets
51st
Mahjong
15th
Mandelbrot
11th
Maze
41st
Medal Tally
30th
Minesweeper
21st
Morse Decoder
14th
Morse Encoder
16th
Multitap Input
9th
Musical Chords
16th
N Queens
32nd
Nim
21st
Niven Numbers
1st
Niven Numbers (Long)
23rd
Number Spiral
46th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
7th
PalindromemordnilaP
35th
Pangram Grep
34th
Partition Numbers
3rd
Pascal’s Triangle
1st
Pernicious Numbers
87th
Pernicious Numbers (Long)
1st
Poker
8th
Polyominoes
13th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
8th
QR Decoder
22nd
Quine
1st
Recamán
71st
Repeating Decimals
1st
Reverse Polish Notation
29th
Reversi
43rd
Rijndael S-box
22nd
Rock-paper-scissors-Spock-lizard
14th
Roman to Arabic
27th
ROT13
1st
Rule 110
13th
Scrambled Sort
14th
Set
16th
Seven Segment
4th
SI Units
12th
Sierpiński Triangle
18th
Smith Numbers
19th
Spelling Numbers
25th
Star Wars GPT
37th
Star Wars Opening Crawl
13th
Sudoku
13th
Sudoku (Fill-in)
17th
Taxicab Numbers
56th
Ten-pin Bowling
38th
Tic-tac-toe
20th
Time Distance
36th
Tongue-twisters
14th
Topological Sort
31st
Tower of Hanoi
32nd
Transpose Sentence
22nd
Trinomial Triangle
1st
Ulam Sequence
28th
United States
60th
Vampire Numbers
13th
Van Eck Sequence
26th
Zeckendorf Representation
6th
Zodiac Signs
18th
γ
21st
λ
17th
π
21st
τ
14th
φ
1st
√2
1st
𝑒
1st