12 Days of Christmas
18th
24 Game
48th
99 Bottles of Beer
1st1st
Abundant Numbers
51st
Abundant Numbers (Long)
37th
Alphabetic Numbers
23rd
Arabic to Roman
26th
Arithmetic Numbers
3rd
Arrows
48th
Ascending Primes
3rd
ASCII Table
20th
Billiards
32nd
brainfuck
22nd
Calendar
15th1st
Card Number Validation
4th
Catalan Numbers
1st
Catalan’s Constant
66th
Chess Move Validation
12th
Christmas Trees
51st
Collatz
48th
Connect Four
16th
Continued Fractions
1st
CSS Colors
232nd
Cubes
17th
Day of Week
1st
DFA Simulator
23rd
Diamonds
11th
Divisors
172nd
25th
Emirp Numbers
27th
Emirp Numbers (Long)
33rd
Emojify
36th
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
20th
Farey Sequence
7th
Fibonacci
1st65th
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
14th
Fractions
1st
Game of Life
21st
Gijswijt’s Sequence
31st
Gray Code Decoder
45th
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
8th
Hexdump
4th
Hilbert Curve
30th
Intersection
48th
Inventory Sequence
29th
ISBN
25th
Jacobi Symbol
26th
Kaprekar Numbers
40th
Kolakoski Constant
23rd
Kolakoski Sequence
24th
Leap Years
11th
Levenshtein Distance
1st
Leyland Numbers
12th
ln 2
1st
Look and Say
8th
Lucky Numbers
1st
Lucky Tickets
64th
Mahjong
23rd
Mandelbrot
6th
Maze
14th
Medal Tally
1st
Minesweeper
13th
Morse Decoder
30th
Morse Encoder
15th
Multitap Input
11th
Musical Chords
28th
N Queens
6th
Nim
5th
Niven Numbers
1st
Niven Numbers (Long)
1st
Number Spiral
39th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
8th
PalindromemordnilaP
54th
Pangram Grep
36th
Partition Numbers
49th
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Poker
28th
Polyominoes
21st
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
19th
QR Decoder
15th
Quine
95th
Recamán
1st
Repeating Decimals
37th
Reverse Polish Notation
6th
Reversi
9th
Rijndael S-box
38th
Rock-paper-scissors-Spock-lizard
26th
Roman to Arabic
28th
ROT13
1st
Rule 110
15th
Scrambled Sort
14th
Semiprime Numbers
15th
Set
20th
Seven Segment
36th
SI Units
31st
Sierpiński Triangle
42nd
Smith Numbers
20th
Snake
14th
Spelling Numbers
17th
Sphenic Numbers
14th
Star Wars GPT
1st
Star Wars Opening Crawl
2nd
Sudoku
25th
Sudoku (Fill-in)
4th
Taxicab Numbers
1st
Ten-pin Bowling
26th
Tic-tac-toe
15th
Time Distance
5th
Tongue-twisters
22nd
Topological Sort
29th
Tower of Hanoi
16th
Transpose Sentence
25th
Trinomial Triangle
1st
Ulam Sequence
23rd
United States
21st
Vampire Numbers
9th
Van Eck Sequence
68th
Zeckendorf Representation
57th
Zodiac Signs
17th
γ
33rd
λ
46th
π
50th
τ
42nd
φ
1st
√2
1st
𝑒
1st