12 Days of Christmas
9th
24 Game
36th
99 Bottles of Beer
8th
Abundant Numbers
10th
Abundant Numbers (Long)
36th
Arabic to Roman
8th
Arithmetic Numbers
24th
Arrows
22nd
Ascending Primes
33rd
ASCII Table
14th
Billiards
9th
brainfuck
9th
Calendar
1st
Card Number Validation
16th
Catalan Numbers
1st
Catalan’s Constant
35th
Christmas Trees
6th
Collatz
121st
Connect Four
10th
Continued Fractions
1st
CSS Colors
6th
Cubes
3rd
Day of Week
1st
DFA Simulator
11th
Diamonds
56th
Divisors
1st
Emirp Numbers
16th
Emirp Numbers (Long)
10th
Emojify
33rd
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
21st
Farey Sequence
31st
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
16th
Fractions
1st
Game of Life
21st
Gijswijt’s Sequence
18th
Gray Code Decoder
19th
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
38th
Hexdump
1st
Hilbert Curve
9th
Intersection
36th
Inventory Sequence
35th
ISBN
23rd
Jacobi Symbol
18th
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
13th
Mandelbrot
10th
Maze
42nd
Medal Tally
27th
Minesweeper
20th
Morse Decoder
13th
Morse Encoder
12th
Multitap Input
8th
Musical Chords
15th
N Queens
28th
Niven Numbers
1st
Niven Numbers (Long)
22nd
Number Spiral
40th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
7th
PalindromemordnilaP
31st
Pangram Grep
30th
Partition Numbers
2nd
Pascal’s Triangle
1st
Pernicious Numbers
81st
Pernicious Numbers (Long)
1st
Poker
7th
Polyominoes
11th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
6th
QR Decoder
19th
Quine
1st
Recamán
63rd
Repeating Decimals
1st
Reverse Polish Notation
26th
Reversi
40th
Rijndael S-box
18th
Rock-paper-scissors-Spock-lizard
12th
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
10th
Sudoku (Fill-in)
13th
Taxicab Numbers
49th
Ten-pin Bowling
33rd
Tic-tac-toe
18th
Time Distance
33rd
Tongue-twisters
11th
Topological Sort
27th
Tower of Hanoi
28th
Transpose Sentence
22nd
Trinomial Triangle
1st
United States
54th
Vampire Numbers
9th
Van Eck Sequence
24th
Zeckendorf Representation
6th
Zodiac Signs
17th
γ
20th
λ
13th
π
19th
τ
11th
φ
1st
√2
1st
𝑒
1st