12 Days of Christmas
💎
2nd
43rd
2nd
24 Game
2nd
1st
2nd
4th
2nd
2nd
2nd
💎
3rd
99 Bottles of Beer
11th
1st
47th
2nd
21st
Abundant Numbers
6th
5th
21st
16th
💎
4th
8th
7th
8th
3rd
4th
1st
2nd
10th
3rd
1st
2nd
10th
1st
3rd
7th
8th
2nd
5th
15th
25th
5th
5th
2nd
6th
6th
9th
3rd
9th
Abundant Numbers (Long)
4th
3rd
17th
3rd
9th
1st
3rd
1st
2nd
3rd
4th
3rd
2nd
6th
3rd
1st
1st
3rd
8th
1st
1st
6th
5th
6th
3rd
7th
6th
6th
3rd
5th
5th
5th
3rd
1st
1st
3rd
3rd
Arabic to Roman
1st
7th
2nd
💎
1st
💎
💎
1st
2nd
💎
3rd
5th
3rd
8th
5th
6th
1st
4th
Arithmetic Numbers
5th
3rd
💎
3rd
2nd
1st
💎
3rd
13th
5th
2nd
10th
2nd
6th
3rd
Ascending Primes
1st
5th
2nd
3rd
💎
2nd
2nd
3rd
2nd
4th
4th
2nd
2nd
3rd
3rd
1st
4th
ASCII Table
5th
💎
8th
💎
1st
2nd
💎
1st
3rd
6th
19th
2nd
3rd
1st
💎
3rd
brainfuck
💎
11th
40th
10th
11th
2nd
Catalan Numbers
5th
1st
2nd
1st
4th
3rd
4th
1st
3rd
1st
14th
5th
1st
1st
7th
6th
3rd
1st
6th
1st
1st
3rd
Catalan’s Constant
7th
💎
6th
1st
💎
9th
3rd
Christmas Trees
💎
4th
3rd
3rd
3rd
1st
3rd
1st
2nd
4th
9th
2nd
2nd
💎
7th
💎
Collatz
6th
5th
2nd
1st
17th
💎
5th
1st
3rd
3rd
2nd
5th
3rd
1st
1st
4th
7th
3rd
1st
4th
4th
4th
4th
1st
3rd
2nd
7th
4th
2nd
3rd
CSS Colors
7th
1st
2nd
💎
💎
2nd
2nd
2nd
1st
1st
2nd
4th
2nd
2nd
💎
💎
Cubes
10th
2nd
2nd
7th
12th
Day of Week
1st
1st
15th
1st
1st
4th
5th
1st
1st
6th
1st
1st
3rd
💎
1st
1st
5th
7th
1st
💎
1st
6th
1st
4th
1st
1st
3rd
1st
6th
1st
DFA Simulator
2nd
1st
6th
3rd
Diamonds
3rd
2nd
5th
12th
3rd
3rd
1st
💎
2nd
4th
1st
7th
3rd
2nd
3rd
3rd
10th
3rd
💎
5th
💎
Divisors
3rd
9th
1st
1st
25th
1st
9th
2nd
2nd
1st
1st
1st
1st
6th
1st
8th
1st
24th
1st
1st
1st
7th
5th
1st
6th
4th
7th
7th
7th
7th
1st
1st
13th
5th
4th
1st
2nd
2nd
7th
Emirp Numbers
18th
3rd
1st
6th
5th
1st
4th
1st
3rd
15th
8th
5th
13th
1st
9th
1st
4th
5th
10th
3rd
1st
4th
Emirp Numbers (Long)
13th
7th
8th
1st
13th
2nd
3rd
2nd
2nd
6th
6th
12th
8th
4th
6th
13th
4th
2nd
Evil Numbers
3rd
6th
4th
3rd
13th
9th
3rd
2nd
1st
5th
1st
5th
1st
3rd
4th
1st
3rd
6th
7th
1st
1st
3rd
3rd
1st
1st
1st
3rd
1st
1st
1st
4th
3rd
14th
1st
1st
2nd
8th
4th
8th
3rd
1st
7th
5th
2nd
5th
4th
1st
4th
Evil Numbers (Long)
4th
4th
1st
1st
1st
1st
1st
3rd
5th
1st
5th
1st
3rd
3rd
1st
3rd
1st
1st
1st
1st
1st
5th
1st
1st
4th
2nd
6th
3rd
6th
1st
1st
3rd
5th
5th
1st
1st
1st
3rd
Factorial Factorisation
💎
3rd
2nd
2nd
3rd
2nd
2nd
3rd
4th
1st
Farey Sequence
2nd
1st
8th
1st
5th
💎
1st
1st
1st
2nd
💎
1st
1st
3rd
1st
2nd
1st
1st
Fibonacci
34th
2nd
6th
3rd
1st
1st
1st
2nd
1st
6th
1st
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
1st
6th
6th
5th
3rd
1st
5th
1st
12th
14th
Fizz Buzz
6th
1st
9th
1st
19th
19th
1st
1st
1st
6th
6th
3rd
4th
3rd
3rd
💎
2nd
23rd
13th
8th
4th
17th
1st
1st
1st
11th
9th
1st
1st
5th
4th
8th
1st
6th
11th
1st
1st
2nd
3rd
6th
4th
1st
1st
2nd
1st
Foo Fizz Buzz Bar
1st
2nd
6th
💎
13th
3rd
3rd
💎
3rd
7th
9th
3rd
1st
1st
3rd
5th
3rd
10th
3rd
3rd
3rd
1st
6th
10th
1st
1st
2nd
2nd
1st
2nd
Forsyth–Edwards Notation
4th
4th
2nd
💎
1st
5th
2nd
3rd
18th
2nd
💎
5th
8th
7th
11th
💎
Fractions
3rd
1st
10th
7th
2nd
1st
4th
2nd
11th
1st
7th
5th
7th
5th
1st
Game of Life
1st
5th
7th
3rd
2nd
2nd
💎
4th
4th
💎
4th
9th
4th
4th
2nd
2nd
2nd
3rd
3rd
2nd
7th
2nd
2nd
3rd
💎
Gijswijt’s Sequence
💎
Happy Numbers
1st
3rd
15th
18th
13th
3rd
1st
4th
7th
5th
1st
4th
1st
7th
2nd
2nd
9th
9th
1st
4th
4th
3rd
1st
9th
3rd
12th
1st
14th
1st
1st
4th
9th
2nd
8th
Happy Numbers (Long)
1st
2nd
11th
1st
💎
4th
1st
3rd
1st
4th
2nd
5th
1st
7th
9th
5th
1st
1st
4th
1st
3rd
7th
2nd
7th
3rd
10th
4th
6th
2nd
10th
3rd
3rd
Hexdump
💎
💎
4th
1st
Intersection
💎
11th
💎
2nd
1st
💎
5th
2nd
11th
1st
1st
15th
💎
3rd
Inventory Sequence
6th
4th
3rd
9th
6th
6th
💎
4th
3rd
3rd
4th
2nd
2nd
5th
2nd
4th
5th
8th
3rd
3rd
3rd
5th
7th
8th
2nd
4th
6th
💎
ISBN
3rd
2nd
9th
💎
14th
2nd
4th
💎
💎
1st
5th
2nd
9th
3rd
2nd
6th
5th
12th
1st
4th
8th
Jacobi Symbol
1st
Kolakoski Constant
10th
2nd
💎
9th
7th
2nd
Kolakoski Sequence
2nd
💎
9th
5th
4th
1st
1st
4th
3rd
2nd
3rd
5th
6th
1st
2nd
5th
8th
5th
1st
1st
💎
4th
2nd
4th
2nd
7th
7th
2nd
Leap Years
3rd
5th
1st
14th
7th
3rd
3rd
2nd
6th
1st
1st
1st
1st
5th
1st
6th
8th
2nd
5th
1st
3rd
5th
4th
4th
3rd
4th
12th
4th
9th
7th
4th
7th
8th
5th
2nd
3rd
4th
1st
Levenshtein Distance
2nd
1st
1st
💎
1st
6th
16th
💎
6th
2nd
1st
1st
3rd
1st
1st
Leyland Numbers
1st
3rd
3rd
5th
10th
4th
1st
4th
1st
8th
3rd
ln 2
1st
2nd
1st
15th
1st
1st
1st
1st
Look and Say
💎
4th
1st
2nd
💎
12th
3rd
18th
5th
4th
9th
1st
2nd
12th
Lucky Numbers
11th
2nd
8th
3rd
3rd
6th
9th
3rd
Lucky Tickets
2nd
💎
💎
17th
Mahjong
3rd
4th
Maze
5th
Medal Tally
💎
3rd
2nd
7th
8th
Morse Decoder
9th
2nd
1st
13th
8th
3rd
Morse Encoder
2nd
2nd
2nd
💎
2nd
2nd
💎
2nd
2nd
💎
2nd
7th
N Queens
4th
1st
💎
3rd
8th
💎
Niven Numbers
10th
7th
2nd
1st
1st
8th
1st
2nd
1st
1st
1st
1st
1st
1st
3rd
1st
2nd
6th
1st
4th
1st
1st
1st
1st
1st
15th
5th
1st
1st
1st
2nd
1st
4th
1st
1st
1st
3rd
1st
4th
11th
1st
8th
7th
6th
1st
6th
3rd
1st
3rd
Niven Numbers (Long)
7th
3rd
4th
5th
3rd
1st
2nd
7th
1st
1st
3rd
3rd
3rd
1st
1st
4th
4th
2nd
1st
1st
3rd
1st
1st
14th
3rd
4th
3rd
2nd
3rd
1st
4th
1st
14th
5th
1st
3rd
1st
4th
3rd
1st
4th
3rd
Number Spiral
1st
2nd
💎
9th
1st
2nd
1st
💎
3rd
💎
2nd
2nd
11th
Odious Numbers
4th
8th
4th
1st
1st
9th
3rd
2nd
1st
6th
1st
5th
1st
3rd
4th
1st
4th
3rd
7th
1st
1st
1st
1st
1st
1st
1st
3rd
1st
1st
1st
7th
9th
14th
1st
1st
3rd
7th
4th
8th
1st
1st
7th
5th
4th
2nd
4th
1st
5th
Odious Numbers (Long)
6th
4th
1st
1st
1st
1st
1st
3rd
6th
1st
3rd
1st
3rd
3rd
1st
3rd
1st
1st
1st
1st
1st
4th
1st
1st
4th
2nd
6th
4th
7th
1st
1st
4th
5th
5th
1st
2nd
1st
3rd
Ordinal Numbers
6th
2nd
4th
10th
💎
2nd
1st
2nd
2nd
2nd
6th
3rd
2nd
1st
3rd
1st
3rd
4th
2nd
3rd
1st
1st
2nd
1st
1st
1st
Pangram Grep
4th
💎
13th
2nd
2nd
1st
2nd
💎
3rd
1st
2nd
10th
3rd
12th
5th
1st
5th
6th
7th
21st
2nd
3rd
5th
Pascal’s Triangle
1st
15th
1st
1st
3rd
3rd
1st
3rd
3rd
7th
6th
1st
2nd
16th
6th
1st
1st
4th
7th
10th
7th
10th
1st
1st
1st
3rd
3rd
Pernicious Numbers
1st
6th
1st
1st
17th
1st
1st
2nd
1st
1st
1st
1st
1st
1st
1st
1st
1st
4th
1st
1st
9th
1st
1st
1st
1st
1st
8th
5th
1st
1st
1st
1st
1st
1st
1st
1st
1st
3rd
1st
4th
3rd
1st
3rd
1st
1st
4th
1st
1st
3rd
Pernicious Numbers (Long)
5th
5th
4th
12th
3rd
7th
2nd
2nd
1st
1st
3rd
3rd
3rd
3rd
1st
2nd
3rd
8th
3rd
5th
4th
3rd
3rd
9th
1st
4th
3rd
6th
2nd
5th
2nd
4th
5th
1st
5th
1st
3rd
4th
4th
1st
1st
1st
2nd
Prime Numbers
6th
1st
22nd
16th
2nd
1st
1st
3rd
1st
5th
1st
7th
1st
1st
1st
9th
1st
10th
1st
1st
3rd
1st
1st
1st
5th
1st
4th
9th
1st
6th
5th
2nd
5th
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
6th
1st
1st
7th
5th
1st
Proximity Grid
4th
2nd
4th
💎
2nd
💎
3rd
4th
11th
💎
💎
💎
2nd
6th
2nd
1st
Quine
1st
1st
1st
5th
4th
2nd
9th
1st
6th
6th
4th
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
1st
1st
1st
5th
1st
8th
1st
9th
1st
Recamán
3rd
17th
4th
2nd
2nd
2nd
2nd
10th
8th
3rd
3rd
11th
3rd
9th
Repeating Decimals
1st
1st
1st
4th
💎
Reverse Polish Notation
💎
💎
4th
2nd
💎
1st
4th
1st
8th
6th
4th
4th
5th
7th
14th
1st
Rijndael S-box
3rd
2nd
2nd
2nd
9th
2nd
💎
2nd
3rd
3rd
2nd
Rock-paper-scissors-Spock-lizard
💎
11th
15th
Roman to Arabic
1st
💎
1st
1st
1st
2nd
2nd
1st
5th
7th
2nd
6th
💎
2nd
2nd
1st
3rd
1st
1st
3rd
3rd
Rule 110
4th
1st
3rd
5th
6th
1st
3rd
5th
2nd
3rd
Seven Segment
💎
4th
3rd
1st
💎
12th
2nd
4th
3rd
3rd
5th
2nd
12th
💎
5th
2nd
SI Units
3rd
Sierpiński Triangle
1st
1st
5th
4th
1st
💎
6th
3rd
3rd
1st
3rd
2nd
4th
1st
4th
2nd
1st
12th
1st
5th
2nd
2nd
3rd
Smith Numbers
1st
9th
2nd
💎
7th
Spelling Numbers
💎
1st
Sudoku
💎
7th
💎
10th
Sudoku v2
💎
7th
1st
3rd
2nd
7th
2nd
Ten-pin Bowling
💎
8th
6th
Time Distance
8th
4th
Tongue-twisters
39th
💎
20th
United States
5th
6th
💎
4th
2nd
2nd
1st
3rd
1st
3rd
3rd
4th
4th
9th
1st
3rd
3rd
Van Eck Sequence
2nd
1st
1st
3rd
1st
5th
3rd
1st
3rd
Zodiac Signs
4th
2nd
2nd
6th
9th
5th
2nd
4th
3rd
4th
1st
γ
2nd
2nd
2nd
1st
3rd
💎
2nd
λ
2nd
9th
💎
4th
π
💎
9th
3rd
4th
8th
9th
1st
1st
4th
7th
τ
💎
8th
2nd
4th
9th
1st
4th
4th
5th
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
12th
1st
1st
4th
1st
1st