12 Days of Christmas
1st
24 Game
2nd
5th
99 Bottles of Beer
19th
1st
28th
239th
16th
Abundant Numbers
16th
5th
Abundant Numbers (Long)
3rd
Arabic to Roman
1st
Arithmetic Numbers
12th
1st
Arrows
11th
19th
Ascending Primes
1st
7th
7th
10th
2nd
ASCII Table
10th
28th
15th
22nd
247th
brainfuck
💎
Catalan Numbers
19th
1st
63rd
Catalan’s Constant
6th
Christmas Trees
1st
Collatz
8th
16th
19th
135th
34th
CSS Colors
6th
Cubes
3rd
Day of Week
15th
1st
1st
DFA Simulator
21st
Diamonds
1st
Divisors
9th
41st
1st
674th
39th
87th
Emirp Numbers
3rd
32nd
Emirp Numbers (Long)
10th
Emojify
4th
Evil Numbers
5th
3rd
3rd
3rd
3rd
18th
39th
11th
83rd
1st
17th
92nd
15th
13th
6th
Evil Numbers (Long)
1st
17th
10th
1st
1st
6th
1st
32nd
Factorial Factorisation
3rd
4th
Farey Sequence
1st
8th
1st
5th
1st
1st
1st
Fibonacci
6th
1st
101st
55th
3rd
1st
38th
1st
77th
Fizz Buzz
47th
1st
30th
465th
38th
1st
72nd
208th
190th
30th
1st
121st
89th
238th
95th
196th
1st
319th
1st
74th
11th
59th
287th
50th
147th
Foo Fizz Buzz Bar
1st
5th
12th
1st
1st
Forsyth–Edwards Notation
8th
Fractions
5th
11th
10th
2nd
Game of Life
8th
12th
Gijswijt’s Sequence
5th
10th
Happy Numbers
1st
31st
Happy Numbers (Long)
1st
Hexdump
11th
25th
14th
Intersection
3rd
Inventory Sequence
21st
12th
113th
ISBN
1st
5th
Jacobi Symbol
13th
20th
Kolakoski Constant
14th
Kolakoski Sequence
9th
8th
Leap Years
5th
1st
4th
3rd
1st
4th
9th
Levenshtein Distance
17th
7th
1st
Leyland Numbers
4th
ln 2
1st
9th
1st
Look and Say
9th
20th
Lucky Numbers
9th
20th
37th
Lucky Tickets
9th
24th
9th
Mahjong
5th
Maze
10th
Medal Tally
8th
Morse Decoder
9th
Morse Encoder
4th
6th
Musical Chords
10th
73rd
N Queens
2nd
5th
2nd
5th
💎
💎
2nd
2nd
2nd
3rd
5th
2nd
💎
2nd
2nd
8th
💎
Niven Numbers
17th
1st
18th
1st
4th
1st
Niven Numbers (Long)
10th
1st
4th
Number Spiral
5th
5th
16th
Odious Numbers
6th
1st
24th
1st
1st
11th
1st
17th
15th
7th
Odious Numbers (Long)
1st
1st
20th
2nd
1st
5th
1st
27th
Ordinal Numbers
2nd
1st
4th
Pangram Grep
10th
16th
Pascal’s Triangle
29th
5th
27th
7th
323rd
16th
Pernicious Numbers
6th
1st
1st
1st
1st
24th
18th
18th
9th
23rd
1st
1st
30th
14th
22nd
22nd
23rd
1st
26th
1st
17th
38th
1st
12th
14th
1st
17th
Pernicious Numbers (Long)
1st
9th
Poker
30th
44th
Prime Numbers
11th
1st
37th
1st
1st
6th
33rd
1st
23rd
146th
14th
Prime Numbers (Long)
1st
1st
1st
5th
1st
26th
Proximity Grid
6th
💎
QR Decoder
13th
10th
43rd
Quine
1st
1st
2nd
2nd
77th
52nd
10th
23rd
62nd
39th
84th
68th
53rd
42nd
1st
58th
1st
1st
47th
45th
29th
51st
70th
1st
83rd
1st
62nd
Recamán
15th
25th
26th
Repeating Decimals
11th
Reverse Polish Notation
13th
31st
Rijndael S-box
12th
56th
Rock-paper-scissors-Spock-lizard
44th
Roman to Arabic
6th
19th
Rule 110
14th
8th
Seven Segment
9th
11th
8th
SI Units
15th
Sierpiński Triangle
6th
27th
22nd
12th
Smith Numbers
5th
Spelling Numbers
6th
Star Wars Opening Crawl
21st
103rd
Sudoku
10th
Sudoku v2
9th
Ten-pin Bowling
20th
71st
Time Distance
22nd
17th
98th
Tongue-twisters
10th
7th
38th
United States
3rd
Vampire Numbers
14th
Van Eck Sequence
12th
1st
Zodiac Signs
12th
γ
8th
13th
λ
11th
π
4th
9th
τ
9th
φ
1st
√2
1st
1st
1st
𝑒
4th
23rd
1st
1st
1st
15th