12 Days of Christmas
1st
4th
32nd
8th
24 Game
2nd
1st
2nd
4th
2nd
2nd
3rd
💎
3rd
99 Bottles of Beer
4th
1st
12th
2nd
28th
Abundant Numbers
6th
4th
16th
8th
2nd
4th
5th
4th
5th
3rd
5th
3rd
2nd
10th
1st
1st
2nd
9th
1st
1st
6th
7th
4th
9th
11th
8th
5th
6th
2nd
3rd
4th
4th
3rd
9th
Abundant Numbers (Long)
4th
3rd
16th
2nd
9th
1st
1st
1st
2nd
3rd
4th
3rd
2nd
8th
1st
1st
1st
3rd
8th
1st
1st
6th
5th
6th
3rd
7th
6th
6th
3rd
5th
5th
4th
3rd
1st
1st
3rd
3rd
Arabic to Roman
1st
4th
2nd
💎
1st
💎
💎
1st
4th
💎
3rd
7th
3rd
8th
5th
7th
2nd
4th
Arithmetic Numbers
5th
2nd
2nd
3rd
2nd
1st
💎
2nd
13th
5th
2nd
16th
2nd
5th
3rd
Ascending Primes
1st
4th
2nd
3rd
💎
2nd
2nd
3rd
2nd
4th
4th
2nd
2nd
3rd
3rd
1st
4th
ASCII Table
5th
💎
8th
💎
1st
2nd
1st
1st
3rd
6th
7th
3rd
3rd
1st
2nd
4th
brainfuck
💎
6th
18th
7th
13th
4th
Catalan Numbers
5th
1st
1st
1st
4th
3rd
4th
1st
1st
1st
14th
5th
1st
1st
7th
6th
3rd
1st
6th
2nd
1st
3rd
Catalan’s Constant
7th
💎
6th
1st
💎
17th
2nd
Christmas Trees
💎
8th
3rd
3rd
3rd
1st
3rd
1st
2nd
4th
2nd
2nd
4th
2nd
3rd
2nd
Collatz
6th
5th
2nd
1st
14th
💎
1st
1st
3rd
3rd
2nd
2nd
3rd
1st
1st
4th
7th
3rd
1st
4th
4th
4th
6th
1st
2nd
5th
7th
4th
3rd
3rd
CSS Colors
5th
3rd
2nd
💎
💎
1st
6th
3rd
1st
1st
2nd
6th
2nd
4th
3rd
2nd
Cubes
5th
2nd
💎
4th
23rd
Day of Week
1st
1st
15th
1st
1st
4th
5th
1st
1st
6th
1st
1st
3rd
💎
1st
1st
4th
7th
1st
💎
1st
6th
1st
4th
1st
1st
1st
1st
6th
1st
DFA Simulator
💎
1st
11th
4th
Diamonds
3rd
2nd
5th
10th
3rd
3rd
2nd
1st
2nd
4th
1st
7th
3rd
2nd
3rd
3rd
17th
2nd
💎
5th
2nd
Divisors
2nd
9th
1st
1st
25th
1st
9th
2nd
1st
1st
1st
1st
1st
6th
1st
8th
1st
24th
1st
1st
1st
6th
5th
1st
6th
4th
7th
6th
7th
7th
1st
1st
1st
5th
1st
1st
2nd
2nd
7th
Emirp Numbers
1st
1st
1st
8th
1st
1st
1st
1st
7th
1st
3rd
4th
1st
1st
15th
1st
3rd
1st
3rd
1st
2nd
4th
Emirp Numbers (Long)
13th
7th
8th
1st
9th
2nd
3rd
3rd
2nd
5th
6th
12th
9th
4th
6th
16th
3rd
3rd
Evil Numbers
3rd
6th
4th
3rd
3rd
3rd
3rd
1st
1st
3rd
1st
5th
1st
1st
3rd
1st
3rd
2nd
7th
1st
1st
3rd
3rd
3rd
1st
1st
3rd
1st
1st
1st
4th
3rd
8th
1st
1st
2nd
10th
3rd
3rd
1st
6th
1st
2nd
5th
3rd
1st
4th
Evil Numbers (Long)
5th
4th
4th
1st
1st
1st
1st
1st
3rd
1st
1st
5th
1st
3rd
3rd
1st
3rd
1st
1st
1st
1st
1st
4th
1st
1st
4th
2nd
6th
3rd
6th
1st
1st
3rd
5th
3rd
5th
1st
1st
1st
3rd
Factorial Factorisation
💎
4th
2nd
2nd
3rd
2nd
2nd
3rd
6th
1st
Farey Sequence
2nd
1st
8th
1st
5th
💎
1st
1st
1st
1st
💎
1st
1st
3rd
1st
2nd
1st
1st
Fibonacci
29th
6th
2nd
6th
3rd
1st
4th
1st
2nd
1st
6th
3rd
1st
1st
1st
1st
9th
1st
1st
21st
1st
1st
1st
1st
1st
1st
1st
7th
1st
3rd
1st
9th
3rd
5th
7th
1st
1st
3rd
1st
2nd
6th
6th
5th
3rd
1st
5th
1st
12th
14th
Fizz Buzz
6th
1st
9th
1st
19th
19th
1st
1st
1st
1st
6th
3rd
4th
3rd
3rd
5th
2nd
23rd
11th
8th
4th
15th
1st
1st
1st
3rd
9th
1st
1st
5th
4th
8th
1st
6th
1st
1st
1st
3rd
1st
6th
4th
1st
4th
2nd
1st
Foo Fizz Buzz Bar
1st
2nd
6th
2nd
1st
3rd
3rd
💎
3rd
7th
9th
1st
1st
1st
3rd
5th
6th
10th
3rd
3rd
4th
1st
6th
1st
1st
1st
4th
9th
1st
3rd
Forsyth–Edwards Notation
4th
6th
3rd
💎
💎
5th
2nd
3rd
5th
2nd
💎
7th
11th
8th
11th
3rd
Fractions
3rd
1st
4th
7th
5th
1st
4th
2nd
11th
1st
7th
5th
8th
5th
1st
Game of Life
1st
5th
5th
3rd
2nd
2nd
💎
4th
4th
2nd
4th
10th
3rd
4th
2nd
2nd
2nd
4th
3rd
2nd
12th
2nd
5th
3rd
2nd
Gijswijt’s Sequence
💎
Happy Numbers
1st
2nd
5th
6th
7th
1st
1st
1st
1st
1st
1st
1st
1st
7th
10th
1st
1st
1st
1st
1st
8th
6th
1st
8th
4th
3rd
1st
1st
1st
1st
3rd
9th
2nd
8th
Happy Numbers (Long)
1st
2nd
7th
1st
💎
8th
1st
3rd
1st
4th
2nd
5th
1st
6th
9th
5th
1st
1st
1st
1st
3rd
7th
2nd
7th
3rd
14th
5th
7th
2nd
14th
3rd
5th
Hexdump
4th
💎
4th
1st
Intersection
💎
6th
💎
2nd
2nd
1st
5th
2nd
3rd
2nd
1st
10th
1st
3rd
Inventory Sequence
6th
4th
3rd
7th
6th
6th
💎
5th
3rd
3rd
4th
3rd
2nd
5th
2nd
4th
5th
8th
3rd
3rd
3rd
5th
7th
13th
2nd
2nd
6th
2nd
ISBN
3rd
2nd
9th
1st
11th
2nd
5th
1st
💎
1st
5th
2nd
9th
3rd
2nd
6th
5th
22nd
2nd
4th
11th
Jacobi Symbol
1st
Kolakoski Constant
6th
2nd
💎
14th
10th
3rd
Kolakoski Sequence
2nd
💎
9th
5th
4th
6th
1st
1st
3rd
2nd
3rd
5th
6th
1st
1st
5th
8th
1st
1st
1st
💎
4th
2nd
10th
2nd
6th
7th
4th
Leap Years
3rd
5th
1st
4th
6th
3rd
4th
2nd
3rd
1st
1st
1st
1st
5th
1st
6th
8th
2nd
4th
1st
1st
5th
4th
4th
3rd
4th
12th
4th
9th
7th
3rd
7th
8th
5th
2nd
3rd
4th
1st
Levenshtein Distance
1st
1st
1st
💎
1st
6th
7th
💎
6th
2nd
1st
1st
3rd
1st
1st
Leyland Numbers
3rd
3rd
4th
5th
10th
4th
1st
4th
4th
8th
3rd
ln 2
1st
2nd
1st
15th
1st
1st
1st
1st
Look and Say
💎
6th
1st
2nd
1st
10th
3rd
18th
5th
1st
16th
1st
2nd
8th
Lucky Numbers
9th
2nd
8th
3rd
3rd
6th
16th
3rd
Lucky Tickets
2nd
💎
💎
29th
Mahjong
3rd
4th
Maze
10th
Medal Tally
2nd
4th
2nd
7th
13th
Morse Decoder
6th
2nd
1st
5th
11th
3rd
Morse Encoder
2nd
2nd
2nd
💎
3rd
1st
💎
2nd
2nd
💎
2nd
3rd
Niven Numbers
10th
11th
7th
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
6th
1st
1st
1st
1st
1st
1st
1st
14th
5th
1st
1st
1st
1st
1st
4th
1st
1st
1st
3rd
1st
6th
1st
8th
7th
1st
1st
6th
1st
1st
1st
Niven Numbers (Long)
7th
3rd
4th
1st
3rd
1st
2nd
7th
1st
1st
3rd
3rd
3rd
1st
1st
4th
1st
1st
1st
1st
5th
1st
1st
14th
3rd
4th
3rd
2nd
3rd
1st
4th
1st
14th
5th
1st
4th
1st
4th
3rd
1st
3rd
3rd
Number Spiral
1st
2nd
💎
7th
1st
2nd
1st
💎
3rd
💎
2nd
2nd
21st
Odious Numbers
4th
8th
4th
1st
1st
1st
2nd
1st
1st
1st
1st
5th
1st
1st
3rd
1st
4th
1st
7th
1st
1st
1st
1st
3rd
1st
1st
3rd
1st
1st
1st
7th
9th
10th
1st
1st
3rd
4th
5th
1st
1st
6th
1st
4th
2nd
1st
1st
4th
Odious Numbers (Long)
5th
6th
4th
1st
1st
1st
1st
1st
3rd
2nd
1st
3rd
1st
3rd
3rd
1st
3rd
1st
1st
1st
1st
1st
4th
1st
1st
4th
2nd
6th
4th
7th
1st
1st
4th
5th
3rd
5th
1st
2nd
1st
3rd
Ordinal Numbers
6th
2nd
4th
9th
💎
2nd
1st
2nd
2nd
3rd
5th
3rd
2nd
1st
3rd
1st
3rd
4th
2nd
4th
1st
1st
1st
1st
1st
2nd
Pangram Grep
4th
💎
9th
2nd
2nd
1st
2nd
3rd
1st
1st
2nd
10th
1st
12th
5th
1st
5th
6th
7th
36th
2nd
2nd
5th
Pascal’s Triangle
1st
15th
1st
1st
3rd
3rd
1st
3rd
3rd
7th
6th
1st
1st
16th
4th
1st
1st
4th
7th
10th
7th
1st
1st
1st
1st
1st
3rd
Pernicious Numbers
1st
6th
1st
1st
1st
1st
1st
2nd
1st
1st
1st
1st
1st
1st
1st
1st
1st
4th
1st
1st
9th
1st
4th
1st
1st
1st
8th
5th
1st
1st
1st
1st
1st
1st
1st
1st
1st
3rd
1st
1st
1st
2nd
1st
1st
4th
1st
1st
1st
Pernicious Numbers (Long)
4th
5th
5th
4th
12th
1st
6th
2nd
2nd
1st
1st
3rd
3rd
4th
3rd
1st
2nd
3rd
5th
3rd
5th
4th
3rd
1st
9th
3rd
4th
3rd
6th
2nd
5th
2nd
4th
4th
1st
5th
1st
3rd
4th
4th
1st
1st
1st
2nd
Prime Numbers
6th
1st
20th
15th
1st
1st
1st
3rd
1st
3rd
1st
1st
1st
1st
1st
4th
1st
12th
1st
1st
3rd
1st
1st
1st
5th
1st
1st
1st
5th
5th
2nd
1st
1st
Prime Numbers (Long)
6th
1st
17th
8th
11th
1st
4th
1st
2nd
3rd
4th
1st
1st
4th
5th
9th
1st
1st
7th
1st
6th
1st
1st
1st
2nd
1st
5th
4th
1st
1st
7th
5th
1st
Proximity Grid
4th
4th
4th
💎
2nd
💎
3rd
4th
10th
2nd
💎
4th
2nd
7th
2nd
3rd
Quine
1st
1st
1st
5th
4th
2nd
9th
1st
5th
6th
2nd
7th
1st
5th
1st
6th
6th
1st
3rd
9th
1st
1st
3rd
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
4th
15th
1st
1st
3rd
1st
4th
1st
1st
5th
1st
8th
1st
9th
1st
Recamán
3rd
15th
4th
2nd
2nd
3rd
2nd
10th
8th
3rd
3rd
1st
3rd
9th
Repeating Decimals
1st
6th
1st
1st
1st
Reverse Polish Notation
💎
💎
3rd
2nd
💎
1st
4th
1st
8th
6th
4th
4th
5th
10th
22nd
1st
Rijndael S-box
9th
4th
2nd
2nd
2nd
4th
3rd
💎
2nd
8th
6th
2nd
Rock-paper-scissors-Spock-lizard
💎
7th
30th
Roman to Arabic
1st
💎
2nd
1st
1st
2nd
3rd
1st
5th
7th
2nd
6th
💎
2nd
2nd
1st
1st
2nd
1st
1st
3rd
Rule 110
3rd
1st
3rd
5th
6th
1st
3rd
4th
1st
1st
Seven Segment
13th
💎
3rd
3rd
1st
💎
9th
3rd
3rd
3rd
3rd
5th
💎
23rd
2nd
5th
3rd
SI Units
3rd
Sierpiński Triangle
1st
1st
5th
4th
1st
💎
9th
3rd
3rd
2nd
3rd
2nd
4th
1st
4th
1st
1st
10th
1st
4th
2nd
2nd
3rd
Smith Numbers
1st
6th
2nd
💎
14th
Spelling Numbers
💎
1st
Sudoku
💎
4th
💎
7th
Sudoku v2
💎
4th
1st
3rd
2nd
10th
4th
Ten-pin Bowling
💎
6th
11th
Time Distance
5th
10th
Tongue-twisters
11th
💎
30th
United States
4th
4th
💎
5th
2nd
2nd
1st
3rd
1st
3rd
3rd
5th
4th
10th
1st
3rd
3rd
Van Eck Sequence
2nd
1st
1st
3rd
1st
5th
3rd
1st
4th
Zodiac Signs
5th
2nd
2nd
4th
7th
4th
3rd
4th
5th
5th
1st
γ
💎
💎
💎
1st
💎
💎
💎
λ
💎
2nd
💎
2nd
π
💎
7th
3rd
4th
7th
9th
1st
1st
4th
24th
τ
💎
7th
2nd
4th
9th
1st
4th
4th
20th
φ
4th
1st
1st
2nd
4th
9th
1st
5th
1st
1st
2nd
5th
1st
6th
1st
7th
1st
√2
1st
1st
2nd
4th
1st
1st
1st
1st
1st
1st
6th
1st
1st
𝑒
💎
1st
4th
4th
10th
10th
1st
1st
4th
1st
1st