12 Days of Christmas
8th
24 Game
99 Bottles of Beer
10th
Abundant Numbers
21st
Abundant Numbers (Long)
20th
Arabic to Roman
18th
Arithmetic Numbers
10th
Arrows
35th
Ascending Primes
10th
ASCII Table
15th
Billiards
8th
brainfuck
16th
Card Number Validation
19th
Catalan Numbers
43rd
Catalan’s Constant
20th
Christmas Trees
55th
Collatz
31st
CSS Colors
11th
Cubes
11th
Day of Week
90th
24th
DFA Simulator
9th
Diamonds
45th
14th
Divisors
42nd
Emirp Numbers
33rd
Emirp Numbers (Long)
7th
Emojify
19th
Evil Numbers
75th
Evil Numbers (Long)
44th
Factorial Factorisation
11th
Farey Sequence
24th
Fibonacci
7th
Fizz Buzz
3rd
Foo Fizz Buzz Bar
11th
Forsyth–Edwards Notation
21st
Fractions
1st
Game of Life
6th
Gijswijt’s Sequence
14th
Happy Numbers
17th
Happy Numbers (Long)
37th
Hexdump
14th
Hilbert Curve
12th
Intersection
17th
Inventory Sequence
30th
ISBN
16th
Jacobi Symbol
13th
Kaprekar Numbers
15th
Kolakoski Constant
31st
Kolakoski Sequence
34th
Leap Years
30th
Levenshtein Distance
16th
Leyland Numbers
17th
ln 2
21st
Look and Say
27th
Lucky Numbers
26th
Lucky Tickets
20th
Mahjong
9th
Mandelbrot
6th
Maze
17th
Medal Tally
9th
Morse Decoder
14th
Morse Encoder
15th
Musical Chords
15th
N Queens
4th
Niven Numbers
42nd
Niven Numbers (Long)
1st
Number Spiral
11th
Odious Numbers
62nd
Odious Numbers (Long)
38th
Ordinal Numbers
19th
PalindromemordnilaP
14th
Pangram Grep
5th
Partition Numbers
6th22nd
Pascal’s Triangle
64th
Pernicious Numbers
53rd
Pernicious Numbers (Long)
31st
Poker
10th
Polyominoes
8th
Prime Numbers
27th
Prime Numbers (Long)
1st
Proximity Grid
16th
QR Decoder
6th
Quine
Recamán
37th
Repeating Decimals
19th
Reverse Polish Notation
13th
Reversi
15th
Rijndael S-box
17th
Rock-paper-scissors-Spock-lizard
26th
Roman to Arabic
35th
ROT13
6th1st8th1st1st2nd
Rule 110
31st
Scrambled Sort
4th
Set
8th
Seven Segment
11th
SI Units
4th
Sierpiński Triangle
30th
Smith Numbers
11th
Spelling Numbers
13th
Star Wars GPT
5th
Star Wars Opening Crawl
14th
Sudoku
18th
Sudoku (Fill-in)
22nd
Ten-pin Bowling
20th
Tic-tac-toe
21st
Time Distance
10th
Tongue-twisters
14th
Topological Sort
14th
Tower of Hanoi
24th
Transpose Sentence
22nd
Trinomial Triangle
22nd
United States
20th
Vampire Numbers
13th
Van Eck Sequence
29th
Zeckendorf Representation
10th
Zodiac Signs
9th
γ
13th
λ
9th
π
26th
τ
27th
φ
√2
𝑒
28th