12 Days of Christmas
1st
24 Game
💎
99 Bottles of Beer
3rd
Abundant Numbers
2nd
Abundant Numbers (Long)
2nd
Arabic to Roman
💎
Arithmetic Numbers
3rd
Arrows
4th
Ascending Primes
💎
ASCII Table
2nd
brainfuck
2nd125th
Catalan Numbers
3rd
Catalan’s Constant
💎
Christmas Trees
💎
Collatz
4th
CSS Colors
2nd
Cubes
2nd
Day of Week
2nd
Diamonds
3rd
Divisors
1st
Emirp Numbers
3rd
Emirp Numbers (Long)
3rd
Emojify
2nd
Evil Numbers
6th
Evil Numbers (Long)
5th
Factorial Factorisation
2nd
Farey Sequence
4th
Fibonacci
13th
Fizz Buzz
2nd
Foo Fizz Buzz Bar
2nd
Forsyth–Edwards Notation
2nd
Fractions
3rd
Game of Life
2nd
Gijswijt’s Sequence
2nd
Happy Numbers
6th141st
Happy Numbers (Long)
💎69th
Hexdump
2nd
Intersection
2nd
Inventory Sequence
3rd
ISBN
3rd
Jacobi Symbol
3rd
Kolakoski Constant
3rd
Kolakoski Sequence
3rd
Leap Years
3rd
Levenshtein Distance
Leyland Numbers
2nd
ln 2
3rd
Look and Say
2nd
Lucky Numbers
3rd
Lucky Tickets
2nd
Maze
💎
Medal Tally
2nd
Morse Decoder
💎
Morse Encoder
💎
Musical Chords
💎
N Queens
3rd
Niven Numbers
1st
Niven Numbers (Long)
1st
Number Spiral
3rd
Odious Numbers
6th
Odious Numbers (Long)
5th
Ordinal Numbers
2nd
Pangram Grep
2nd
Pascal’s Triangle
8th98th
Pernicious Numbers
16th
Pernicious Numbers (Long)
2nd
Poker
Prime Numbers
5th
Prime Numbers (Long)
2nd
Proximity Grid
💎
QR Decoder
💎
Quine
1st
13th
Recamán
1st56th3rd
Repeating Decimals
💎
2nd
Reverse Polish Notation
💎
2nd
Rijndael S-box
💎
Rock-paper-scissors-Spock-lizard
2nd
Roman to Arabic
2nd
Rule 110
2nd
Seven Segment
2nd
SI Units
2nd
Sierpiński Triangle
4th
Smith Numbers
1st
Spelling Numbers
2nd
Star Wars Opening Crawl
💎
Sudoku
🦄
Sudoku (Fill-in)
🦄
Ten-pin Bowling
💎
Time Distance
2nd
Tongue-twisters
5th
United States
2nd
Vampire Numbers
2nd
Van Eck Sequence
2nd
Zeckendorf Representation
2nd
Zodiac Signs
2nd
γ
3rd
λ
3rd
π
4th
τ
4th
φ
3rd
√2
3rd
𝑒
4th