12 Days of Christmas
24th
22nd
7th
2nd30th
53rd
9th
99 Bottles of Beer
20th
16th
10th
6th26th
42nd
10th
Abundant Numbers
13th
21st
8th
4th
51st
17th
Abundant Numbers (Long)
6th
Arabic to Roman
💎
30th
Arithmetic Numbers
3rd
Arrows
14th
19th
6th
Ascending Primes
5th
ASCII Table
16th
12th
88th
4th
39th
13th
brainfuck
3rd
34th
Card Number Validation
8th
Catalan Numbers
9th
18th
5th
3rd
23rd
7th
Catalan’s Constant
9th
9th
4th
4th
8th
Christmas Trees
42nd
8th
5th
5th10th
40th
11th
Collatz
8th
18th
7th
8th
53rd
10th
CSS Colors
3rd
14th
Cubes
18th
8th
4th
💎
29th
10th
Day of Week
1st
Diamonds
26th
8th
5th
4th21st
32nd
10th
Divisors
21st
23rd
13th
1st36th
39th
10th
Emirp Numbers
11th
12th
6th
48th
6th19th
164th
58th
24th
Emirp Numbers (Long)
6th
5th
Emojify
9th
Evil Numbers
24th
16th
8th
16th31st
130th
24th
23rd
Evil Numbers (Long)
4th
Factorial Factorisation
5th
Farey Sequence
19th
Fibonacci
22nd131st
36th
22nd
294th
1st50th
791st
62nd
17th
Fizz Buzz
87th
61st
80th
1,030th
1st106th
1,447th
3rd
25th
Foo Fizz Buzz Bar
10th
14th
7th
12th
10th
Forsyth–Edwards Notation
3rd
Fractions
106th
1st
275th
1st
Game of Life
9th
Gijswijt’s Sequence
2nd
Happy Numbers
20th
13th
5th
4th21st
128th
34th
21st
Happy Numbers (Long)
6th
11th
5th
2nd
155th
22nd
7th
Hexdump
1st
Intersection
59th
💎
227th
22nd
Inventory Sequence
7th
ISBN
7th
29th
Jacobi Symbol
4th
Kaprekar Numbers
6th
Kolakoski Constant
7th8th8th37th24th
12th21st11th9th6th16th20th14th3rd10th21st50th14th
6th6th7th13th17th33rd
141st13th26th12th7th6th6th7th22nd
Kolakoski Sequence
16th
9th
7th
13th
8th
43rd
1st
218th
27th
17th
Leap Years
15th
23rd
9th
1st
4th23rd
51st
4th
11th
Levenshtein Distance
4th
54th
Leyland Numbers
6th
9th
4th
2nd
35th
8th
ln 2
6th
Look and Say
18th
11th
2nd
8th
38th
12th
Lucky Numbers
5th
8th
3rd
8th
9th
Lucky Tickets
2nd
24th
Maze
7th
Medal Tally
6th
Morse Decoder
4th
30th
Morse Encoder
3rd
34th
Musical Chords
2nd
16th
N Queens
8th
Niven Numbers
21st
24th
7th
1st38th
42nd
21st
Niven Numbers (Long)
4th
Number Spiral
6th
10th
4th
7th
25th
13th
Odious Numbers
23rd
16th
7th
17th32nd
94th
21st
23rd
Odious Numbers (Long)
4th
Ordinal Numbers
10th
46th
PalindromemordnilaP
11th
Pangram Grep
5th
78th
Partition Numbers
13th
Pascal’s Triangle
9th
12th
7th
1st21st
32nd
10th
Pernicious Numbers
13th
22nd
8th
1st
1st36th
1st
20th
21st
Pernicious Numbers (Long)
11th
Poker
2nd
Polyominoes
5th
Prime Numbers
10th
16th
9th
1st
1st39th
148th
62nd
23rd
Prime Numbers (Long)
8th
14th
7th
12th
43rd
8th
Proximity Grid
2nd
QR Decoder
25th
2nd
15th
Quine
1st
2nd
11th
30th
1st
70th
109th
Recamán
5th
9th
5th
14th
6th
25th
9th
Repeating Decimals
3rd
Reverse Polish Notation
7th
Rijndael S-box
6th
Rock-paper-scissors-Spock-lizard
2nd
17th
Roman to Arabic
11th
35th
ROT13
3rd
Rule 110
18th
5th
5th
7th
36th
11th
Seven Segment
6th
SI Units
💎
Sierpiński Triangle
20th
10th
5th
10th
26th
10th
Smith Numbers
6th
6th
4th
3rd
35th
7th
Spelling Numbers
2nd
24th
Star Wars Opening Crawl
💎
Sudoku
5th
Sudoku (Fill-in)
3rd
Ten-pin Bowling
2nd
24th
Tic-tac-toe
5th
Time Distance
3rd
Tongue-twisters
8th
13th
6th
4th
34th
12th
Transpose Sentence
13th
United States
8th
Vampire Numbers
7th
4th
3rd
3rd
35th
7th
Van Eck Sequence
5th
5th
5th
40th
1st
107th
18th
8th
Zodiac Signs
5th
γ
💎
λ
10th12th10th65th37th26th13th26th11th8th7th20th32nd15th5th9th23rd98th18th
1st12th9th11th21st45th9th148th14th32nd17th12th11th8th9th28th
π
12th11th12th98th69th
13th33rd14th11th10th21st47th32nd5th28th53rd211th89th
6th11th8th51st26th68th
487th37th80th20th10th13th13th9th39th
τ
10th10th10th51st39th
12th31st12th11th8th15th37th19th6th25th41st110th77th
6th8th8th40th20th44th
273rd22nd54th14th10th8th7th9th23rd
φ
11th39th12th49th41st
13th37th13th11th10th16th45th30th4th32nd38th93rd73rd
15th7th8th38th22nd42nd
347th25th62nd17th11th8th9th11th23rd
√2
18th41st12th61st48th
12th30th14th11th12th18th52nd31st6th28th58th105th61st
6th7th8th37th18th46th
196th19th59th16th11th9th8th13th25th
𝑒
12th13th13th76th53rd
13th32nd14th13th10th21st42nd33rd6th31st38th114th74th
10th11th9th40th25th51st
271st32nd65th23rd9th7th11th11th33rd