12 Days of Christmas
4th
99 Bottles of Beer
6th
Abundant Numbers
5th
21st
Arabic to Roman
2nd
7th
Ascending Primes
7th
ASCII Table
2nd
437th
brainfuck
1st
Catalan Numbers
1st
Christmas Trees
1st
Collatz
3rd
Diamonds
1st
Divisors
1st1st
16th1st
Emirp Numbers
1st
737th
Emirp Numbers (Long)
1st
Emojify
Evil Numbers
1st
1st
Evil Numbers (Long)
1st
Factorial Factorisation
3rd
Farey Sequence
1st
Fibonacci
34th1st
33rd1st
Fizz Buzz
4th
2,390th
Foo Fizz Buzz Bar
4th
Fractions
2nd
Happy Numbers
6th
111th
Happy Numbers (Long)
5th
Hexdump
3rd
Intersection
7th
Inventory Sequence
1st
ISBN
17th6th
19th
Kolakoski Constant
4th
Kolakoski Sequence
1st
1st
Leap Years
5th
1,012th
Levenshtein Distance
2nd
7th77th
Leyland Numbers
1st
120th
Look and Say
1st
Lucky Numbers
18th4th
72nd
Lucky Tickets
8th
7th103rd
Morse Decoder
Niven Numbers
3rd
36th
Niven Numbers (Long)
2nd
Number Spiral
12th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
2nd
411th
PalindromemordnilaP
3rd
Pangram Grep
3rd
Pascal’s Triangle
1st
30th
Pernicious Numbers
1st
19th
Pernicious Numbers (Long)
1st
Prime Numbers
1st
240th
Prime Numbers (Long)
1st
48th
Proximity Grid
2nd
Quine
1st
67th
Recamán
2nd
Reverse Polish Notation
20th4th62nd12th40th
ROT13
1st
Rule 110
10th1st
Seven Segment
5th
Sierpiński Triangle
2nd
Smith Numbers
💎
Sudoku (Fill-in)
2nd
Tongue-twisters
2nd
42nd
United States
Vampire Numbers
1st
52nd
Van Eck Sequence
6th
π
1st
163rd
τ
1st
φ
1st
√2
1st
𝑒
1st