12 Days of Christmas
9th
24 Game
38th
99 Bottles of Beer
8th
Abundant Numbers
10th
Abundant Numbers (Long)
36th
Arabic to Roman
9th
Arithmetic Numbers
26th
Arrows
22nd
Ascending Primes
34th
ASCII Table
14th
Billiards
10th
brainfuck
9th
Calendar
1st
Card Number Validation
17th
Catalan Numbers
1st
Catalan’s Constant
38th
Christmas Trees
6th
Collatz
123rd
Connect Four
16th
Continued Fractions
1st
CSS Colors
6th
Cubes
3rd
Day of Week
1st
DFA Simulator
12th
Diamonds
60th
Divisors
1st
Emirp Numbers
16th
Emirp Numbers (Long)
10th
Emojify
34th
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
23rd
Farey Sequence
32nd
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
16th
Fractions
1st
Game of Life
22nd
Gijswijt’s Sequence
20th
Gray Code Decoder
21st
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
40th
Hexdump
1st
Hilbert Curve
10th
Intersection
36th
Inventory Sequence
36th
ISBN
24th
Jacobi Symbol
19th
Kaprekar Numbers
5th
Kolakoski Constant
30th
Kolakoski Sequence
22nd
Leap Years
18th
Levenshtein Distance
1st
Leyland Numbers
1st
ln 2
1st
Look and Say
9th
Lucky Numbers
15th
Lucky Tickets
47th
Mahjong
15th
Mandelbrot
10th
Maze
40th
Medal Tally
28th
Minesweeper
20th
Morse Decoder
13th
Morse Encoder
13th
Multitap Input
8th
Musical Chords
16th
N Queens
30th
Niven Numbers
1st
Niven Numbers (Long)
22nd
Number Spiral
42nd
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
7th
PalindromemordnilaP
33rd
Pangram Grep
31st
Partition Numbers
2nd
Pascal’s Triangle
1st
Pernicious Numbers
83rd
Pernicious Numbers (Long)
1st
Poker
7th
Polyominoes
11th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
6th
QR Decoder
21st
Quine
1st
Recamán
65th
Repeating Decimals
1st
Reverse Polish Notation
27th
Reversi
42nd
Rijndael S-box
19th
Rock-paper-scissors-Spock-lizard
12th
Roman to Arabic
26th
ROT13
1st
Rule 110
12th
Scrambled Sort
12th
Set
14th
Seven Segment
4th
SI Units
8th
Sierpiński Triangle
17th
Smith Numbers
16th
Spelling Numbers
25th
Star Wars GPT
33rd
Star Wars Opening Crawl
12th
Sudoku
10th
Sudoku (Fill-in)
13th
Taxicab Numbers
50th
Ten-pin Bowling
35th
Tic-tac-toe
19th
Time Distance
34th
Tongue-twisters
11th
Topological Sort
29th
Tower of Hanoi
29th
Transpose Sentence
23rd
Trinomial Triangle
1st
United States
55th
Vampire Numbers
11th
Van Eck Sequence
24th
Zeckendorf Representation
6th
Zodiac Signs
17th
γ
21st
λ
14th
π
20th
τ
13th
φ
1st
√2
1st
𝑒
1st