12 Days of Christmas
36th
21st
26th
14th
86th
9th
99 Bottles of Beer
49th
32nd
24th
23rd
100th
Abundant Numbers
6th
13th37th19th
51st33rd
40th12th
22nd
64th65th
10th
Abundant Numbers (Long)
19th
23rd
27th
11th
36th
Arabic to Roman
25th
19th76th
24th
12th
87th
Arithmetic Numbers
1st
Arrows
21st
22nd
49th
Ascending Primes
28th
ASCII Table
55th
28th
5th
224th
brainfuck
33rd
16th
9th
56th
Card Number Validation
18th
Catalan Numbers
39th
1st
1st1st
Catalan’s Constant
12th
24th
Christmas Trees
12th
7th
4th
25th20th
189th30th
Collatz
19th3rd20th
26th
45th2nd
43rd40th
CSS Colors
6th
5th
10th
21st17th
Cubes
20th
7th
13th
150th
Day of Week
1st
Diamonds
42nd
29th
14th
68th40th
Divisors
13th
36th26th29th
41st
48th26th
1st
1st46th
9th
Emirp Numbers
7th
30th
16th
12th
24th12th22nd
38th23rd
6th
Emirp Numbers (Long)
17th
13th
19th
Emojify
16th
57th
Evil Numbers
24th10th16th
23rd
52nd
39th16th
1st35th
9th
Evil Numbers (Long)
30th
17th
13th
44th
Factorial Factorisation
12th
Farey Sequence
34th
Fibonacci
31st
3rd44th1st
1st1st154th
92nd1st
1st
44th
1st10th
1st
Fizz Buzz
8th21st157th111th69th
18th106th107th
176th1st
48th9th
101st69th1st77th13th
Foo Fizz Buzz Bar
54th47th42nd
41st
55th20th
1st35th
Forsyth–Edwards Notation
27th
Fractions
35th
35th
24th
158th1st
Game of Life
13th
Gijswijt’s Sequence
16th
Happy Numbers
3rd
47th32nd23rd
21st
45th
35th12th
1st50th
12th
Happy Numbers (Long)
25th18th7th
34th
25th12th
39th37th
Hexdump
2nd
75th
Intersection
11th
20th
6th
70th
Inventory Sequence
37th
26th
5th
ISBN
11th
14th
7th
45th
Jacobi Symbol
9th
7th
15th14th
44th
Kolakoski Constant
6th
6th
2nd
21st16th
Kolakoski Sequence
7th6th6th
17th14th
135th19th
Leap Years
26th
7th21st4th
16th11th
46th6th
20th
52nd158th29th
9th
Levenshtein Distance
17th
12th
1st
12th
96th1st
Leyland Numbers
15th
21st
39th
7th
202nd44th
ln 2
17th
95th
Look and Say
28th
15th
89th58th
Lucky Numbers
22nd
154th24th
Lucky Tickets
9th
18th
51st15th
Maze
20th
Medal Tally
9th
Morse Decoder
7th
15th
45th
Morse Encoder
9th
6th
12th
8th
47th
Musical Chords
16th
Niven Numbers
44th39th29th
27th
28th
49th1st
27th
39th91st32nd
22nd
Niven Numbers (Long)
36th
34th
1st
233rd
Number Spiral
19th
13th
13th
72nd
Odious Numbers
23rd10th12th
20th
46th
39th11th
1st33rd
10th
Odious Numbers (Long)
21st
21st
11th
1st
Ordinal Numbers
29th
14th
30th
1st
24th153rd
Pangram Grep
22nd
12th
1st
66th60th
Pascal’s Triangle
27th
18th
45th
17th
137th
Pernicious Numbers
1st
1st
18th
39th1st
1st23rd
Pernicious Numbers (Long)
22nd
20th
14th
206th
Poker
10th
50th
Prime Numbers
24th35th14th
35th1st50th1st
32nd
66th24th
15th
Prime Numbers (Long)
23rd24th14th
46th1st39th1st
1st
1st69th
6th
Proximity Grid
9th
QR Decoder
8th
25th
Quine
1st
34th
76th1st
1st87th
Recamán
4th
1st
18th
194th
Repeating Decimals
18th
Reverse Polish Notation
11th
155th
Rijndael S-box
16th
Rock-paper-scissors-Spock-lizard
13th
57th
Roman to Arabic
28th
1st12th
Rule 110
5th
11th
69th23rd
Scrambled Sort
22nd
Seven Segment
25th
11th
10th
42nd
SI Units
10th
Sierpiński Triangle
8th7th9th
14th8th
30th7th
6th
Smith Numbers
4th
12th18th15th
9th
18th18th
37th
Spelling Numbers
7th
72nd
Star Wars Opening Crawl
23rd
Sudoku
7th
48th
Sudoku (Fill-in)
15th
69th
Ten-pin Bowling
16th
Time Distance
14th
79th
Tongue-twisters
25th
19th
27th
183rd
United States
5th
49th
Vampire Numbers
4th
9th
29th23rd
Van Eck Sequence
32nd
23rd
19th
17th
261st
Zodiac Signs
11th
59th
γ
7th
12th
λ
7th
29th
14th
17th17th
53rd29th
π
31st
71st45th
τ
25th
65th38th
φ
25th
27th1st
49th39th
√2
19th
29th1st
146th31st
𝑒
24th
16th
21st
31st
133rd25th