12 Days of Christmas
13th
24 Game
37th
99 Bottles of Beer
1st
Abundant Numbers
51st
Abundant Numbers (Long)
28th
Arabic to Roman
20th
Arithmetic Numbers
10th
Arrows
45th
Ascending Primes
36th
ASCII Table
34th
Billiards
45th
brainfuck
14th
Card Number Validation
14th
Catalan Numbers
1st
Catalan’s Constant
47th
Christmas Trees
55th
Collatz
34th
CSS Colors
45th
Cubes
33rd
Day of Week
1st
DFA Simulator
15th
Diamonds
28th
Divisors
162nd1st
Emirp Numbers
39th
Emirp Numbers (Long)
20th
Emojify
39th
Evil Numbers
133rd
Evil Numbers (Long)
37th
Factorial Factorisation
43rd
Farey Sequence
27th
Fibonacci
183rd
Fizz Buzz
57th
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
22nd
Fractions
1st
Game of Life
11th
Gijswijt’s Sequence
27th
Happy Numbers
143rd
Happy Numbers (Long)
55th
Hexdump
38th
Hilbert Curve
8th
Intersection
46th
Inventory Sequence
44th
ISBN
20th
Jacobi Symbol
19th
Kaprekar Numbers
34th
Kolakoski Constant
29th
Kolakoski Sequence
72nd
Leap Years
52nd
Levenshtein Distance
35th
Leyland Numbers
8th
ln 2
1st
Look and Say
21st
Lucky Numbers
43rd
Lucky Tickets
50th
Mahjong
12th
Mandelbrot
29th
Maze
19th
Medal Tally
21st
Minesweeper
10th
Morse Decoder
24th
Morse Encoder
20th
Musical Chords
16th
N Queens
32nd
Niven Numbers
72nd
Niven Numbers (Long)
38th
Number Spiral
24th
Odious Numbers
151st
Odious Numbers (Long)
150th
Ordinal Numbers
4th
PalindromemordnilaP
35th
Pangram Grep
59th
Partition Numbers
41st
Pascal’s Triangle
75th
Pernicious Numbers
156th
Pernicious Numbers (Long)
60th
Poker
14th
Polyominoes
17th
Prime Numbers
78th
Prime Numbers (Long)
1st
Proximity Grid
20th
QR Decoder
17th
Quine
72nd
Recamán
53rd
Repeating Decimals
27th
Reverse Polish Notation
54th
Reversi
9th
Rijndael S-box
36th
Rock-paper-scissors-Spock-lizard
20th
Roman to Arabic
32nd
ROT13
57th
Rule 110
65th
Scrambled Sort
6th
Set
31st
Seven Segment
22nd
SI Units
15th
Sierpiński Triangle
58th
Smith Numbers
22nd
Spelling Numbers
12th
Star Wars GPT
1st
Star Wars Opening Crawl
16th
Sudoku
25th
Sudoku (Fill-in)
8th
Ten-pin Bowling
18th
Tic-tac-toe
10th
Time Distance
4th
Tongue-twisters
23rd
Topological Sort
18th
Tower of Hanoi
21st
Transpose Sentence
18th
Trinomial Triangle
19th
United States
14th
Vampire Numbers
22nd
Van Eck Sequence
67th
Zeckendorf Representation
63rd
Zodiac Signs
14th
γ
20th
λ
25th
π
53rd
τ
41st
φ
56th
√2
1st
𝑒
1st