12 Days of Christmas
9th
24 Game
39th
99 Bottles of Beer
1st1st
Abundant Numbers
41st
Abundant Numbers (Long)
33rd
Arabic to Roman
20th
Arithmetic Numbers
11th
Arrows
33rd
Ascending Primes
24th
ASCII Table
16th
Billiards
22nd
brainfuck
15th
Calendar
12th1st
Card Number Validation
14th
Catalan Numbers
1st
Catalan’s Constant
48th
Christmas Trees
56th
Collatz
37th
CSS Colors
45th
Cubes
20th
Day of Week
1st
DFA Simulator
16th
Diamonds
28th
Divisors
162nd
1st
Emirp Numbers
22nd
Emirp Numbers (Long)
21st
Emojify
34th
Evil Numbers
1st
Evil Numbers (Long)
38th
Factorial Factorisation
16th
Farey Sequence
1st
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
23rd
Fractions
1st
Game of Life
12th
Gijswijt’s Sequence
29th
Happy Numbers
1st
Happy Numbers (Long)
23rd
Hexdump
32nd
Hilbert Curve
10th
Intersection
48th
Inventory Sequence
18th
ISBN
20th
Jacobi Symbol
17th
Kaprekar Numbers
29th
Kolakoski Constant
18th
Kolakoski Sequence
76th
Leap Years
14th
Levenshtein Distance
40th
Leyland Numbers
8th
ln 2
1st
Look and Say
24th
Lucky Numbers
11th
Lucky Tickets
50th
Mahjong
13th
Mandelbrot
28th
Maze
11th
Medal Tally
18th
Minesweeper
10th
Morse Decoder
24th
Morse Encoder
12th
Musical Chords
17th
N Queens
32nd
Niven Numbers
1st
Niven Numbers (Long)
42nd
Number Spiral
24th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
4th
PalindromemordnilaP
40th
Pangram Grep
60th
Partition Numbers
35th
Pascal’s Triangle
78th
Pernicious Numbers
161st
Pernicious Numbers (Long)
67th
Poker
14th
Polyominoes
17th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
21st
QR Decoder
10th
Quine
72nd
Recamán
1st
Repeating Decimals
30th
Reverse Polish Notation
56th
Reversi
9th
Rijndael S-box
24th
Rock-paper-scissors-Spock-lizard
20th
Roman to Arabic
24th
ROT13
58th
Rule 110
69th
Scrambled Sort
7th
Set
34th
Seven Segment
24th
SI Units
15th
Sierpiński Triangle
33rd
Smith Numbers
24th
Spelling Numbers
12th
Star Wars GPT
1st
Star Wars Opening Crawl
2nd
Sudoku
23rd
Sudoku (Fill-in)
8th
Ten-pin Bowling
20th
Tic-tac-toe
10th
Time Distance
4th
Tongue-twisters
16th
Topological Sort
18th
Tower of Hanoi
29th
Transpose Sentence
19th
Trinomial Triangle
20th
United States
14th
Vampire Numbers
22nd
Van Eck Sequence
54th
Zeckendorf Representation
48th
Zodiac Signs
14th
γ
21st
λ
28th
π
53rd
τ
41st
φ
57th
√2
1st
𝑒
1st