12 Days of Christmas
2nd16th
24 Game
2nd
99 Bottles of Beer
4th40th
Abundant Numbers
16th6th24th858th
Abundant Numbers (Long)
2nd
Arabic to Roman
6th10th
Arithmetic Numbers
18th
Arrows
14th
Ascending Primes
8th
ASCII Table
7th
Billiards
5th
brainfuck
3rd21st
Card Number Validation
4th
Catalan Numbers
5th
Catalan’s Constant
10th
Christmas Trees
10th15th
Collatz
3rd
CSS Colors
9th16th
Cubes
8th20th
Day of Week
1st
DFA Simulator
💎
Diamonds
4th8th76th
Divisors
24th
14th28th1st
Emirp Numbers
13th1st16th196th
Emirp Numbers (Long)
3rd
Emojify
6th
Evil Numbers
8th19th8th14th329th
Evil Numbers (Long)
7th
Factorial Factorisation
5th
Farey Sequence
15th
Fibonacci
30th34th1st1st154th
Fizz Buzz
1st1st52nd
Foo Fizz Buzz Bar
1st
Forsyth–Edwards Notation
2nd
Fractions
3rd
Game of Life
8th
Gijswijt’s Sequence
4th
Happy Numbers
18th7th40th
Happy Numbers (Long)
1st
Hexdump
4th
Intersection
7th16th
Inventory Sequence
7th
ISBN
1st
Jacobi Symbol
7th
Kaprekar Numbers
7th
Kolakoski Constant
8th13th
Kolakoski Sequence
13th5th22nd
Leap Years
19th8th6th1st146th
Levenshtein Distance
3rd7th
Leyland Numbers
11th2nd18th
Look and Say
💎1st
Lucky Numbers
3rd
Lucky Tickets
5th18th
Maze
2nd
Medal Tally
7th
Morse Decoder
6th25th
Morse Encoder
6th14th
Musical Chords
4th
N Queens
5th
Niven Numbers
1st1st
Niven Numbers (Long)
1st
Number Spiral
5th
Odious Numbers
20th8th37th
Odious Numbers (Long)
7th
Ordinal Numbers
4th1st118th
PalindromemordnilaP
3rd
Pangram Grep
4th1st
Pascal’s Triangle
9th19th
Pernicious Numbers
28th51st
Pernicious Numbers (Long)
9th
Poker
3rd9th
Prime Numbers
10th20th12th1st
Prime Numbers (Long)
20th
Proximity Grid
7th
Quine
1st28th
Recamán
13th8th25th
Repeating Decimals
💎
Reverse Polish Notation
5th
Rijndael S-box
19th
Rock-paper-scissors-Spock-lizard
4th9th
Roman to Arabic
6th11th
ROT13
3rd
Rule 110
4th15th
Seven Segment
4th21st
SI Units
7th
Sierpiński Triangle
11th24th
Smith Numbers
15th8th
Spelling Numbers
6th2nd
Star Wars Opening Crawl
💎
Sudoku
3rd10th
Sudoku (Fill-in)
7th
Ten-pin Bowling
3rd9th
Tic-tac-toe
3rd
Time Distance
9th
Tongue-twisters
3rd23rd
Transpose Sentence
5th
United States
5th
Vampire Numbers
18th3rd9th
Van Eck Sequence
16th6th
Zeckendorf Representation
3rd
Zodiac Signs
3rd
γ
10th
λ
3rd52nd115th
π
8th32nd
τ
7th25th
φ
7th19th
√2
1st22nd149th
𝑒
3rd28th