12 Days of Christmas
8th
27th
7th
71st
9th
99 Bottles of Beer
34th
24th
14th
52nd
Abundant Numbers
5th
17th39th20th
51st33rd
43rd12th
24th
41st66th
10th
Abundant Numbers (Long)
20th
25th
27th
11th
104th
Arabic to Roman
26th
19th81st
25th
9th
24th
Arithmetic Numbers
1st
Arrows
21st
16th
82nd
Ascending Primes
29th
ASCII Table
56th
28th
5th
75th
brainfuck
36th
16th
7th
32nd
Card Number Validation
20th
Catalan Numbers
39th
1st
1st1st
Catalan’s Constant
12th
17th
Christmas Trees
13th
9th
5th
25th20th
63rd33rd
Collatz
11th3rd21st
26th
45th3rd
39th42nd
CSS Colors
6th
6th
8th
14th26th
Cubes
27th
8th
9th
57th
Day of Week
1st
Diamonds
42nd
29th
17th
42nd48th
Divisors
13th
38th26th30th
42nd
49th26th
1st
3rd51st
9th
Emirp Numbers
4th
31st
20th
8th
20th16th22nd
77th36th
6th
Emirp Numbers (Long)
16th
13th
18th
Emojify
18th
71st
Evil Numbers
19th15th17th
23rd
52nd
39th16th
1st35th
9th
Evil Numbers (Long)
35th
18th
14th
46th
Factorial Factorisation
13th
Farey Sequence
37th
Fibonacci
33rd
4th48th2nd
1st23rd155th
99th1st
1st
45th
1st10th
1st
Fizz Buzz
8th21st152nd111th70th
18th106th108th
177th1st
49th9th
102nd52nd4th77th13th
Foo Fizz Buzz Bar
50th47th44th
41st
57th26th
21st42nd
Forsyth–Edwards Notation
17th
Fractions
37th
37th
25th
64th1st
Game of Life
11th
Gijswijt’s Sequence
19th
Happy Numbers
3rd
49th32nd27th
14th
46th
36th17th
41st58th
12th
Happy Numbers (Long)
24th20th8th
35th
25th12th
22nd41st
Hexdump
3rd
43rd
Intersection
14th
22nd
5th
26th
Inventory Sequence
37th
26th
5th
ISBN
9th
14th
8th
43rd
Jacobi Symbol
8th
7th
16th10th
39th
Kolakoski Constant
6th
6th
3rd
4th21st
Kolakoski Sequence
7th12th6th
17th14th
59th19th
Leap Years
26th
7th21st4th
20th11th
50th7th
23rd
55th162nd31st
9th
Levenshtein Distance
19th
14th
1st
9th
70th16th
Leyland Numbers
21st
39th
7th
76th46th
ln 2
18th
108th
Look and Say
28th
15th
35th64th
Lucky Numbers
23rd
103rd29th
Lucky Tickets
9th
13th
24th22nd
Maze
13th
Medal Tally
13th
Morse Decoder
7th
13th
24th
Morse Encoder
9th
6th
12th
8th
28th
Musical Chords
10th
Niven Numbers
43rd40th31st
28th
28th
49th1st
28th
45th93rd32nd
24th
Niven Numbers (Long)
40th
35th
1st
242nd
Number Spiral
19th
13th
8th
36th
Odious Numbers
17th14th13th
20th
46th
39th13th
1st33rd
10th
Odious Numbers (Long)
29th
23rd
11th
1st
Ordinal Numbers
28th
14th
30th
1st
25th59th
Pangram Grep
22nd
12th
1st
130th61st
Pascal’s Triangle
28th
18th
45th
18th
49th
Pernicious Numbers
1st
1st
18th
42nd1st
1st24th
Pernicious Numbers (Long)
24th
22nd
16th
217th
Poker
8th
30th
Prime Numbers
22nd36th17th
36th1st50th1st
34th
70th29th
15th
Prime Numbers (Long)
23rd24th16th
46th1st39th1st
3rd
1st72nd
6th
Proximity Grid
6th
QR Decoder
7th
12th
Quine
1st
34th
78th1st
1st87th
Recamán
4th
1st
18th
66th
Repeating Decimals
12th
Reverse Polish Notation
13th
52nd
Rijndael S-box
10th
Rock-paper-scissors-Spock-lizard
12th
32nd
Roman to Arabic
30th
1st21st
Rule 110
5th
14th
59th28th
Scrambled Sort
13th
Seven Segment
27th
13th
14th
25th
SI Units
4th
Sierpiński Triangle
9th7th9th
15th11th
46th7th
6th
Smith Numbers
4th
13th18th17th
9th
19th13th
17th
Spelling Numbers
5th
103rd
Star Wars Opening Crawl
11th
Sudoku
8th
27th
Sudoku (Fill-in)
13th
82nd
Ten-pin Bowling
13th
Time Distance
11th
36th
Tongue-twisters
10th
25th
2nd
63rd
United States
23rd
76th
Vampire Numbers
1st
7th
15th30th
Van Eck Sequence
31st
23rd
19th
18th
169th
Zodiac Signs
10th
79th
γ
8th
25th
λ
3rd
9th
5th
7th12th
33rd24th
π
35th
43rd48th
τ
28th
41st39th
φ
25th
28th1st
1st42nd
√2
19th
36th1st
123rd35th
𝑒
24th
16th
21st
33rd
121st26th