12 Days of Christmas
9th
24 Game
9th
99 Bottles of Beer
20th
Abundant Numbers
6th
Abundant Numbers (Long)
5th
Arabic to Roman
10th
Arithmetic Numbers
1st
Arrows
8th
Ascending Primes
4th
ASCII Table
3rd
brainfuck
6th
Card Number Validation
10th
Catalan Numbers
1st
Catalan’s Constant
10th
Christmas Trees
9th
Collatz
3rd
CSS Colors
8th
Cubes
19th
Day of Week
1st
DFA Simulator
1st
Diamonds
13th
Divisors
1st
Emirp Numbers
4th
Emirp Numbers (Long)
12th
Emojify
11th
Evil Numbers
8th
Evil Numbers (Long)
14th
Farey Sequence
3rd
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
12th
Forsyth–Edwards Notation
1st
Fractions
17th
Game of Life
7th
Gijswijt’s Sequence
8th
Gray Code Decoder
5th
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
1st
Hexdump
3rd
Intersection
6th
Inventory Sequence
1st
ISBN
7th
Jacobi Symbol
18th
Kolakoski Constant
3rd
Kolakoski Sequence
1st
Leap Years
7th
Levenshtein Distance
5th
Leyland Numbers
7th
ln 2
1st
Look and Say
1st
Lucky Numbers
4th
Lucky Tickets
1st
Mahjong
6th
Maze
5th
Medal Tally
5th
Morse Decoder
10th
Morse Encoder
10th
Multitap Input
1st
Musical Chords
6th
N Queens
10th
Niven Numbers
1st
Niven Numbers (Long)
1st
Number Spiral
4th
Odious Numbers
12th
Odious Numbers (Long)
11th
Ordinal Numbers
1st
PalindromemordnilaP
11th
Pangram Grep
14th
Partition Numbers
3rd
Pascal’s Triangle
5th
Pernicious Numbers
1st
Pernicious Numbers (Long)
11th
Poker
9th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
10th
QR Decoder
8th
Quine
1st
Recamán
1st
Repeating Decimals
3rd
Reverse Polish Notation
12th
Reversi
7th
Rijndael S-box
4th
Rock-paper-scissors-Spock-lizard
11th
Roman to Arabic
1st
ROT13
9th
Rule 110
25th
Seven Segment
6th
SI Units
4th
Sierpiński Triangle
11th
Smith Numbers
3rd
Spelling Numbers
7th
Star Wars GPT
3rd
Star Wars Opening Crawl
7th
Sudoku
5th
Sudoku (Fill-in)
7th
Ten-pin Bowling
11th
Tic-tac-toe
8th
Time Distance
6th
Tongue-twisters
10th
Tower of Hanoi
1st
Transpose Sentence
8th
United States
6th
Vampire Numbers
6th
Van Eck Sequence
1st
Zeckendorf Representation
4th
Zodiac Signs
5th
λ
19th
π
15th
τ
16th
φ
1st
√2
1st
𝑒
1st