12 Days of Christmas
1st
24 Game
4th
99 Bottles of Beer
1st
3rd
Abundant Numbers
6th
Abundant Numbers (Long)
5th
Arabic to Roman
1st
1st
Arithmetic Numbers
2nd
Arrows
5th
Ascending Primes
3rd31st
ASCII Table
4th
Billiards
💎
brainfuck
💎
Card Number Validation
5th
Catalan Numbers
1st
Catalan’s Constant
4th
Christmas Trees
3rd
Collatz
1st
3rd
CSS Colors
6th
Cubes
💎
💎
Day of Week
💎
DFA Simulator
2nd
Diamonds
6th
Divisors
4th
7th
Emirp Numbers
5th
Emirp Numbers (Long)
3rd
Emojify
3rd
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
2nd
3rd
Farey Sequence
3rd57th
Fibonacci
1st1st1st
Fizz Buzz
1st51st1st
Foo Fizz Buzz Bar
2nd
1st
Forsyth–Edwards Notation
1st
Fractions
1st
7th
Game of Life
6th
Gijswijt’s Sequence
4th
Happy Numbers
2nd
4th
Happy Numbers (Long)
8th
Hexdump
3rd
Intersection
2nd116th
Inventory Sequence
3rd90th
ISBN
1st
Jacobi Symbol
6th60th
Kaprekar Numbers
2nd57th
Kolakoski Constant
4th
Kolakoski Sequence
2nd
Leap Years
5th144th
Levenshtein Distance
2nd124th
Leyland Numbers
2nd
ln 2
1st
Look and Say
3rd
Lucky Numbers
9th
Lucky Tickets
5th60th
Mahjong
2nd
Maze
3rd
Medal Tally
4th
Morse Decoder
2nd71st
Morse Encoder
3rd
Musical Chords
4th
N Queens
3rd
Niven Numbers
4th117th
Niven Numbers (Long)
3rd150th
Number Spiral
6th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
4th
PalindromemordnilaP
💎
Pangram Grep
💎
Pascal’s Triangle
2nd
6th
Pernicious Numbers
10th1st
Pernicious Numbers (Long)
6th
Poker
3rd
Polyominoes
3rd
Prime Numbers
5th
Prime Numbers (Long)
5th
Proximity Grid
2nd
QR Decoder
3rd80th
Quine
1st
Recamán
5th
Repeating Decimals
3rd
Reverse Polish Notation
2nd
Reversi
💎
Rijndael S-box
3rd
Rock-paper-scissors-Spock-lizard
5th
Roman to Arabic
2nd
2nd
ROT13
💎1st3rd
Rule 110
7th244th
Seven Segment
5th
SI Units
2nd
Sierpiński Triangle
6th
Smith Numbers
5th
Spelling Numbers
1st
Star Wars Opening Crawl
3rd
Sudoku
3rd
Sudoku (Fill-in)
2nd
Ten-pin Bowling
2nd
Tic-tac-toe
💎
Time Distance
💎
Tongue-twisters
6th
4th
Transpose Sentence
💎
United States
4th
Vampire Numbers
3rd
Van Eck Sequence
2nd
Zeckendorf Representation
3rd
Zodiac Signs
5th
γ
4th
λ
6th
π
1st
τ
1st
φ
1st
√2
1st1st
𝑒
1st