12 Days of Christmas
24th
22nd
7th
2nd30th
52nd
9th
99 Bottles of Beer
20th
15th
10th
6th26th
44th
10th
Abundant Numbers
12th
20th
8th
4th
49th
17th
Abundant Numbers (Long)
6th
Arabic to Roman
💎
30th
Arithmetic Numbers
3rd
Arrows
14th
19th
6th
Ascending Primes
5th
ASCII Table
16th
11th
85th
4th
38th
13th
brainfuck
3rd
32nd
Card Number Validation
8th
Catalan Numbers
9th
17th
5th
3rd
23rd
7th
Catalan’s Constant
8th
9th
3rd
4th
8th
Christmas Trees
42nd
8th
5th
5th10th
39th
11th
Collatz
8th
17th
7th
8th
52nd
10th
CSS Colors
3rd
14th
Cubes
18th
8th
4th
💎
29th
9th
Day of Week
1st
Diamonds
26th
8th
5th
4th21st
32nd
10th
Divisors
21st
23rd
13th
1st37th
39th
9th
Emirp Numbers
11th
12th
6th
48th
6th19th
164th
57th
23rd
Emirp Numbers (Long)
6th
5th
Emojify
9th
Evil Numbers
24th
15th
8th
16th30th
126th
24th
23rd
Evil Numbers (Long)
4th
Factorial Factorisation
5th
Farey Sequence
19th
Fibonacci
22nd127th
36th
22nd
291st
1st50th
783rd
61st
16th
Fizz Buzz
87th
59th
79th
1,023rd
1st105th
1,437th
3rd
25th
Foo Fizz Buzz Bar
10th
13th
7th
12th
10th
Forsyth–Edwards Notation
3rd
Fractions
105th
1st
269th
1st
Game of Life
9th
Gijswijt’s Sequence
2nd
Happy Numbers
19th
12th
5th
4th21st
124th
34th
21st
Happy Numbers (Long)
6th
11th
5th
2nd
155th
22nd
7th
Hexdump
1st
Intersection
57th
💎
223rd
19th
Inventory Sequence
7th
ISBN
7th
29th
Jacobi Symbol
4th
Kaprekar Numbers
5th
Kolakoski Constant
7th8th7th37th24th
12th21st11th9th6th16th20th14th3rd10th20th49th12th
6th6th7th12th17th33rd
138th13th24th11th7th6th6th7th22nd
Kolakoski Sequence
16th
9th
7th
12th
8th
43rd
1st
212th
27th
17th
Leap Years
15th
23rd
9th
1st
4th22nd
49th
4th
11th
Levenshtein Distance
3rd
52nd
Leyland Numbers
5th
8th
4th
2nd
34th
8th
ln 2
6th
Look and Say
18th
11th
2nd
8th
37th
11th
Lucky Numbers
5th
8th
3rd
8th
9th
Lucky Tickets
2nd
23rd
Maze
7th
Medal Tally
6th
Morse Decoder
4th
30th
Morse Encoder
3rd
33rd
Musical Chords
2nd
15th
N Queens
8th
Niven Numbers
20th
24th
6th
1st38th
41st
20th
Niven Numbers (Long)
4th
Number Spiral
6th
10th
4th
7th
23rd
13th
Odious Numbers
23rd
14th
7th
16th31st
91st
21st
22nd
Odious Numbers (Long)
4th
Ordinal Numbers
10th
46th
PalindromemordnilaP
10th
Pangram Grep
5th
76th
Partition Numbers
13th
Pascal’s Triangle
9th
10th
7th
1st21st
32nd
10th
Pernicious Numbers
12th
19th
8th
1st
1st35th
1st
20th
21st
Pernicious Numbers (Long)
11th
Poker
💎
Polyominoes
5th
Prime Numbers
10th
15th
9th
1st
1st39th
147th
61st
23rd
Prime Numbers (Long)
8th
14th
7th
12th
41st
8th
Proximity Grid
2nd
QR Decoder
23rd
2nd
14th
Quine
1st
2nd
11th
30th
1st
67th
99th
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
16th
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
5th
4th
3rd
33rd
7th
Spelling Numbers
2nd
24th
Star Wars Opening Crawl
💎
Sudoku
5th
Sudoku (Fill-in)
2nd
Ten-pin Bowling
2nd
24th
Tic-tac-toe
5th
Time Distance
3rd
Tongue-twisters
7th
12th
6th
4th
34th
11th
Transpose Sentence
13th
United States
8th
Vampire Numbers
7th
4th
3rd
3rd
34th
7th
Van Eck Sequence
5th
4th
5th
40th
1st
105th
18th
8th
Zodiac Signs
5th
γ
💎
λ
10th11th9th65th36th26th12th26th11th8th7th20th32nd16th5th9th21st98th17th
1st11th9th10th20th45th9th149th14th32nd16th12th11th7th8th28th
π
12th11th11th98th68th
13th33rd14th11th10th21st46th32nd5th27th51st206th87th
6th11th8th47th26th68th
480th37th79th19th10th13th13th9th39th
τ
10th10th9th51st39th
12th31st12th11th8th15th36th19th6th24th39th109th75th
6th8th8th38th20th44th
267th22nd53rd13th10th8th7th9th23rd
φ
11th39th11th48th41st
13th36th15th11th10th16th45th30th4th30th37th92nd70th
14th7th8th36th22nd42nd
338th25th61st16th11th8th9th11th23rd
√2
18th41st11th61st48th
12th30th15th11th12th18th52nd31st6th27th55th103rd60th
6th7th8th35th18th47th
190th19th59th15th11th9th8th13th25th
𝑒
12th13th12th76th51st
13th32nd14th13th10th20th42nd33rd6th30th35th111th73rd
10th11th9th39th25th51st
267th32nd65th22nd9th7th11th11th33rd