12 Days of Christmas
4th
24 Game
2nd
99 Bottles of Beer
19th
Abundant Numbers
π
8th
Abundant Numbers (Long)
π
2nd
Arabic to Roman
7th
Arithmetic Numbers
1st
7th
Arrows
2nd
16th
Ascending Primes
π
9th4th5th
ASCII Table
12th
Billiards
2nd
2nd
brainfuck
3rd
15th
Card Number Validation
π
5th
Catalan Numbers
π
5th
Catalanβs Constant
9th
Christmas Trees
2nd
20th
Collatz
1st
3rd
CSS Colors
2nd
1st
1st
Cubes
π
π
Day of Week
2nd
1st
1st
DFA Simulator
2nd
2nd
Diamonds
24th
Divisors
1st
17th
42nd
Emirp Numbers
π
1st
Emirp Numbers (Long)
π
12th
Emojify
4th
7th
Evil Numbers
1st
21st8th
Evil Numbers (Long)
1st
27th7th
Factorial Factorisation
π
2nd
Farey Sequence
21st13th17th
Fibonacci
π
8th38th49th
Fizz Buzz
1st
1st
Foo Fizz Buzz Bar
4th
6th
ForsythβEdwards Notation
2nd
8th
Fractions
2nd
10th
Game of Life
6th
Gijswijtβs Sequence
π
7th
Happy Numbers
1st
28th7th20th
Happy Numbers (Long)
1st
11th
Hexdump
15th
Intersection
1st
3rd
Inventory Sequence
7th
ISBN
π
7th
Jacobi Symbol
2nd
6th
Kaprekar Numbers
1st
1st
Kolakoski Constant
6th
Kolakoski Sequence
5th
17th
Leap Years
1st
18th
Levenshtein Distance
12th
Leyland Numbers
2nd
6th
ln 2
8th
Look and Say
π
4th
Lucky Numbers
π
9th
Lucky Tickets
5th
6th
Mahjong
3rd
Maze
π
Medal Tally
15th
Morse Decoder
9th
Morse Encoder
2nd
7th
Musical Chords
6th
N Queens
4th
Niven Numbers
π
70th1st
Niven Numbers (Long)
π
1st
Number Spiral
2nd
8th
Odious Numbers
1st
20th8th
Odious Numbers (Long)
1st
18th7th
Ordinal Numbers
4th
9th
PalindromemordnilaP
2nd
6th
Pangram Grep
1st
π9thπ
Pascalβs Triangle
3rd
29th
Pernicious Numbers
π
1st
Pernicious Numbers (Long)
1st
1st
Poker
7th
Polyominoes
5th
Prime Numbers
π
26th5th22nd
Prime Numbers (Long)
π
19th10th23rd
Proximity Grid
8th
QR Decoder
8th
Quine
63rd
RecamΓ‘n
1st
5th
Repeating Decimals
3rd
Reverse Polish Notation
1st
7th
Reversi
2nd
Rijndael S-box
2ndππ2ndπ
π2ndπππππ
Rock-paper-scissors-Spock-lizard
16th
Roman to Arabic
1st
18th
ROT13
2nd
9th
Rule 110
4th
5th
Seven Segment
π
7th
SI Units
π
SierpiΕski Triangle
π
15th
Smith Numbers
2nd
6th
Spelling Numbers
2nd
Star Wars Opening Crawl
2nd
Sudoku
4th
Sudoku (Fill-in)
3rd
Ten-pin Bowling
π
2nd
Tic-tac-toe
2nd
1st
Time Distance
1st
Tongue-twisters
15th
Transpose Sentence
2nd
1st
United States
4th
Vampire Numbers
6th
Van Eck Sequence
2nd
13th
Zeckendorf Representation
π
1st
Zodiac Signs
2nd
6th
Ξ³
5th
Ξ»
4th
Ο
8th
Ο
9th
Ο
10th
β2
9th
π
13th