12 Days of Christmas
9th
24 Game
8th
99 Bottles of Beer
20th
Abundant Numbers
6th
Abundant Numbers (Long)
4th
Arabic to Roman
10th
Arithmetic Numbers
1st
Arrows
7th
Ascending Primes
3rd
ASCII Table
3rd
brainfuck
6th
Card Number Validation
9th
Catalan Numbers
1st
Catalan’s Constant
9th
Christmas Trees
9th
Collatz
2nd
CSS Colors
7th
Cubes
15th
Day of Week
1st
DFA Simulator
1st
Diamonds
10th
Divisors
1st
Emirp Numbers
3rd
Emirp Numbers (Long)
12th
Emojify
11th
Evil Numbers
7th
Evil Numbers (Long)
13th
Farey Sequence
1st
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
7th
Forsyth–Edwards Notation
1st
Fractions
17th
Game of Life
6th
Gijswijt’s Sequence
7th
Gray Code Decoder
4th
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
1st
Hexdump
2nd
Intersection
6th
Inventory Sequence
1st
ISBN
6th
Jacobi Symbol
17th
Kolakoski Constant
2nd
Kolakoski Sequence
1st
Leap Years
6th
Levenshtein Distance
3rd
Leyland Numbers
7th
ln 2
1st
Look and Say
1st
Lucky Numbers
2nd
Lucky Tickets
1st
Mahjong
6th
Maze
5th
Medal Tally
3rd
Morse Decoder
10th
Morse Encoder
10th
Multitap Input
1st
Musical Chords
3rd
N Queens
9th
Niven Numbers
1st
Niven Numbers (Long)
1st
Number Spiral
3rd
Odious Numbers
11th
Odious Numbers (Long)
11th
Ordinal Numbers
1st
PalindromemordnilaP
9th
Pangram Grep
13th
Partition Numbers
2nd
Pascal’s Triangle
4th
Pernicious Numbers
1st
Pernicious Numbers (Long)
11th
Poker
8th
Prime Numbers
1st
Prime Numbers (Long)
1st
Proximity Grid
11th
QR Decoder
7th
Quine
1st
Recamán
1st
Repeating Decimals
2nd
Reverse Polish Notation
11th
Reversi
7th
Rijndael S-box
4th
Rock-paper-scissors-Spock-lizard
10th
Roman to Arabic
1st
ROT13
9th
Rule 110
23rd
Seven Segment
2nd
SI Units
4th
Sierpiński Triangle
10th
Smith Numbers
1st
Spelling Numbers
7th
Star Wars GPT
2nd
Star Wars Opening Crawl
7th
Sudoku
4th
Sudoku (Fill-in)
7th
Ten-pin Bowling
10th
Tic-tac-toe
6th
Time Distance
6th
Tongue-twisters
10th
Tower of Hanoi
1st
Transpose Sentence
8th
United States
5th
Vampire Numbers
5th
Van Eck Sequence
1st
Zeckendorf Representation
2nd
Zodiac Signs
4th
λ
17th
π
13th
τ
14th
φ
1st
√2
1st
𝑒
1st