12 Days of Christmas
7th
24 Game
34th
99 Bottles of Beer
6th
Abundant Numbers
10th
Abundant Numbers (Long)
35th
Arabic to Roman
8th
Arithmetic Numbers
24th
Arrows
21st
Ascending Primes
33rd
ASCII Table
14th
Billiards
9th
brainfuck
8th
Calendar
1st
Card Number Validation
16th
Catalan Numbers
1st
Catalan’s Constant
35th
Christmas Trees
5th
Collatz
120th
Continued Fractions
1st
CSS Colors
6th
Cubes
3rd
Day of Week
1st
DFA Simulator
11th
Diamonds
54th
Divisors
1st
Emirp Numbers
16th
Emirp Numbers (Long)
10th
Emojify
32nd
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
19th
Farey Sequence
30th
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
16th
Fractions
1st
Game of Life
19th
Gijswijt’s Sequence
17th
Gray Code Decoder
19th
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
37th
Hexdump
1st
Hilbert Curve
8th
Intersection
36th
Inventory Sequence
33rd
ISBN
23rd
Jacobi Symbol
17th
Kaprekar Numbers
5th
Kolakoski Constant
28th
Kolakoski Sequence
21st
Leap Years
18th
Levenshtein Distance
1st
Leyland Numbers
1st
ln 2
1st
Look and Say
9th
Lucky Numbers
14th
Lucky Tickets
44th
Mahjong
12th
Mandelbrot
9th
Maze
41st
Medal Tally
26th
Minesweeper
20th
Morse Decoder
13th
Morse Encoder
12th
Multitap Input
8th
Musical Chords
14th
N Queens
28th
Niven Numbers
1st
Niven Numbers (Long)
22nd
Number Spiral
39th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
7th
PalindromemordnilaP
31st
Pangram Grep
30th
Partition Numbers
2nd
Pascal’s Triangle
1st
Pernicious Numbers
80th
Pernicious Numbers (Long)
1st
Poker
5th
Polyominoes
11th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
6th
QR Decoder
18th
Quine
1st
Recamán
63rd
Repeating Decimals
1st
Reverse Polish Notation
25th
Reversi
39th
Rijndael S-box
17th
Rock-paper-scissors-Spock-lizard
11th
Roman to Arabic
25th
ROT13
1st
Rule 110
12th
Scrambled Sort
11th
Set
13th
Seven Segment
4th
SI Units
8th
Sierpiński Triangle
17th
Smith Numbers
15th
Spelling Numbers
23rd
Star Wars GPT
31st
Star Wars Opening Crawl
12th
Sudoku
9th
Sudoku (Fill-in)
11th
Taxicab Numbers
47th
Ten-pin Bowling
33rd
Tic-tac-toe
18th
Time Distance
33rd
Tongue-twisters
10th
Topological Sort
26th
Tower of Hanoi
28th
Transpose Sentence
22nd
Trinomial Triangle
1st
United States
52nd
Vampire Numbers
9th
Van Eck Sequence
23rd
Zeckendorf Representation
6th
Zodiac Signs
17th
γ
20th
λ
13th
π
17th
τ
11th
φ
1st
√2
1st
𝑒
1st