12 Days of Christmas
4th
24 Game
13th
99 Bottles of Beer
4th
Abundant Numbers
7th
Abundant Numbers (Long)
25th
Arabic to Roman
7th
Arithmetic Numbers
18th
Arrows
15th
Ascending Primes
14th
ASCII Table
11th
Billiards
6th
brainfuck
6th
Card Number Validation
34th
Catalan Numbers
1st
Catalan’s Constant
25th
Christmas Trees
3rd
Collatz
83rd
CSS Colors
4th
Cubes
💎
Day of Week
1st
DFA Simulator
10th
Diamonds
38th
Divisors
1st
Emirp Numbers
8th
Emirp Numbers (Long)
5th
Emojify
23rd
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
13th
Farey Sequence
24th
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
11th
Fractions
1st
Game of Life
10th
Gijswijt’s Sequence
10th
Happy Numbers
1st
Happy Numbers (Long)
25th
Hexdump
1st
Intersection
24th
Inventory Sequence
24th
ISBN
16th
Jacobi Symbol
11th
Kaprekar Numbers
12th
Kolakoski Constant
21st
Kolakoski Sequence
16th
Leap Years
12th
Levenshtein Distance
1st
Leyland Numbers
1st
ln 2
1st
Look and Say
7th
Lucky Numbers
10th
Lucky Tickets
32nd
Mahjong
8th
Maze
27th
Medal Tally
18th
Morse Decoder
10th
Morse Encoder
10th
Musical Chords
9th
N Queens
17th
Niven Numbers
1st
Niven Numbers (Long)
14th
Number Spiral
25th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
4th
PalindromemordnilaP
15th
Pangram Grep
17th
Pascal’s Triangle
1st
Pernicious Numbers
57th
Pernicious Numbers (Long)
1st
Poker
4th
Polyominoes
9th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
3rd
QR Decoder
13th
Quine
1st
Recamán
48th
Repeating Decimals
1st
Reverse Polish Notation
19th
Reversi
24th
Rijndael S-box
13th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
20th
Rule 110
7th
Seven Segment
1st
SI Units
5th
Sierpiński Triangle
12th
Smith Numbers
12th
Spelling Numbers
15th
Star Wars Opening Crawl
8th
Sudoku
8th
Sudoku (Fill-in)
9th
Ten-pin Bowling
19th
Time Distance
18th
Tongue-twisters
6th
Transpose Sentence
15th
United States
42nd
Vampire Numbers
7th
Van Eck Sequence
19th
Zeckendorf Representation
8th
Zodiac Signs
13th
γ
12th
λ
7th
π
9th
τ
6th
φ
1st
√2
1st
𝑒
1st