12 Days of Christmas
9th
9th
10th
22nd
13th
8th
4th
127th
44th
87th
6th
5th
3rd
28th
13th
24 Game
2nd
3rd
3rd
3rd
5th
6th
3rd
13th
9th
8th
4th
2nd
2nd
14th
6th
99 Bottles of Beer
6th
7th
8th
11th
13th
6th
9th
64th
45th
32nd
6th
3rd
5th
25th
11th
12th
7th
Abundant Numbers
12th
9th
15th
14th
13th
6th
9th
42nd
35th
28th
10th
2nd
4th
22nd
24th
13th
14th
17th
11th
17th
Abundant Numbers (Long)
7th
6th
14th
11th
13th
5th
6th
27th
25th
26th
9th
1st
4th
24th
20th
14th
10th
Arabic to Roman
Arithmetic Numbers
8th
6th
8th
8th
6th
5th
3rd
25th
21st
15th
11th
2nd
4th
26th
11th
9th
11th
Arrows
Ascending Primes
6th
5th
9th
5th
5th
8th
6th
32nd
18th
22nd
9th
5th
2nd
15th
9th
9th
ASCII Table
7th
10th
10th
14th
6th
12th
13th
44th
34th
23rd
6th
4th
10th
25th
12th
8th
9th
9th
6th
10th
7th
8th
25th
15th
17th
6th
12th
6th
16th
51st
9th
10th
14th
7th
8th
9th
11th
9th
6th
15th
25th
29th
13th
112th
12th
12th
5th
44th
32nd
4th
10th
5th
6th
brainfuck
Card Number Validation
Catalan Numbers
18th
4th
3rd
6th
5th
3rd
8th
18th
31st
18th
14th
8th
3rd
39th
18th
Catalan’s Constant
4th
3rd
3rd
6th
3rd
4th
7th
9th
17th
8th
7th
2nd
6th
20th
8th
8th
6th
5th
6th
8th
3rd
5th
4th
6th
10th
4th
Christmas Trees
9th
6th
10th
9th
5th
7th
34th
20th
44th
15th
8th
4th
Collatz
15th
10th
20th
13th
9th
16th
7th
52nd
3rd
27th
13th
5th
7th
23rd
15th
13th
12th
CSS Colors
Cubes
4th
4th
4th
7th
9th
7th
9th
34th
37th
15th
6th
2nd
Day of Week
DFA Simulator
Diamonds
8th
5th
11th
9th
8th
9th
15th
64th
54th
33rd
8th
2nd
7th
32nd
36th
8th
12th
Divisors
16th
7th
19th
33rd
14th
7th
18th
42nd
69th
27th
12th
7th
5th
27th
26th
15th
1st
13th
1st
12th
11th
19th
31st
25th
Emirp Numbers
9th
6th
11th
13th
7th
8th
6th
22nd
24th
12th
11th
4th
1st
26th
14th
Emirp Numbers (Long)
5th
5th
9th
8th
8th
7th
5th
41st
31st
28th
6th
3rd
5th
18th
12th
Emojify
Evil Numbers
7th
16th
12th
18th
12th
13th
8th
57th
32nd
36th
17th
1st
1st
31st
21st
16th
16th
12th
15th
17th
10th
20th
45th
32nd
57th
8th
50th
11th
23rd
69th
11th
27th
41st
13th
18th
23rd
17th
11th
12th
53rd
24th
57th
16th
107th
13th
61st
7th
61st
18th
9th
1st
8th
17th
15th
5th
13th
9th
15th
Evil Numbers (Long)
9th
10th
16th
13th
11th
12th
3rd
58th
44th
29th
15th
1st
6th
29th
17th
13th
17th
10th
10th
17th
8th
11th
26th
30th
29th
3rd
33rd
11th
17th
102nd
9th
20th
36th
11th
15th
16th
10th
11th
6th
24th
33rd
34th
15th
32nd
12th
21st
6th
34th
15th
11th
8th
7th
12th
13th
5th
9th
7th
12th
Factorial Factorisation
5th
4th
6th
5th
5th
6th
4th
31st
13th
16th
8th
5th
💎
19th
9th
7th
7th
Farey Sequence
4th
3rd
12th
7th
8th
13th
5th
34th
17th
24th
12th
6th
4th
26th
9th
11th
11th
Fibonacci
75th
28th
38th
7th
3rd
27th
14th
110th
84th
75th
25th
10th
11th
40th
36th
32nd
26th
28th
25th
25th
Fizz Buzz
70th
30th
33rd
98th
11th
19th
48th
30th
139th
69th
14th
4th
10th
23rd
43rd
42nd
15th
27th
48th
25th
Foo Fizz Buzz Bar
10th
10th
18th
27th
7th
7th
4th
42nd
48th
30th
10th
3rd
7th
25th
17th
17th
11th
9th
9th
13th
Forsyth–Edwards Notation
5th
Fractions
Game of Life
Gijswijt’s Sequence
6th
3rd
5th
7th
4th
8th
2nd
16th
12th
14th
7th
3rd
💎
23rd
6th
8th
8th
4th
3rd
5th
Happy Numbers
9th
8th
19th
16th
9th
13th
8th
38th
27th
19th
11th
1st
1st
17th
20th
Happy Numbers (Long)
5th
7th
18th
14th
12th
13th
7th
62nd
36th
29th
13th
6th
5th
31st
18th
Hexdump
Intersection
Inventory Sequence
7th
4th
16th
12th
8th
10th
12th
36th
24th
29th
11th
7th
4th
27th
16th
ISBN
Jacobi Symbol
Kaprekar Numbers
3rd
3rd
5th
5th
3rd
7th
2nd
23rd
12th
19th
8th
1st
1st
9th
9th
8th
4th
2nd
3rd
5th
Kolakoski Constant
7th
3rd
4th
7th
3rd
4th
10th
19th
14th
12th
9th
3rd
7th
22nd
8th
7th
7th
5th
5th
9th
4th
7th
8th
9th
13th
4th
10th
2nd
14th
41st
5th
11th
6th
6th
6th
7th
5th
Kolakoski Sequence
14th
8th
11th
13th
7th
14th
11th
45th
27th
29th
8th
6th
5th
33rd
19th
13th
12th
4th
7th
9th
Leap Years
21st
9th
4th
34th
11th
1st
5th
5th
6th
3rd
12th
7th
10th
12th
10th
14th
1st
13th
5th
1st
Levenshtein Distance
Leyland Numbers
5th
5th
10th
8th
4th
7th
4th
25th
37th
21st
8th
1st
3rd
4th
11th
ln 2
8th
3rd
4th
7th
3rd
4th
6th
14th
16th
12th
11th
3rd
5th
28th
11th
8th
7th
5th
6th
11th
4th
5th
7th
11th
13th
3rd
Look and Say
6th
7th
10th
13th
7th
7th
7th
29th
37th
26th
13th
11th
4th
30th
21st
Lucky Numbers
4th
5th
6th
7th
7th
8th
8th
32nd
24th
20th
8th
4th
6th
31st
12th
Lucky Tickets
Mahjong
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
2nd
3rd
5th
4th
2nd
4th
4th
18th
13th
12th
7th
2nd
2nd
9th
6th
4th
2nd
3rd
2nd
5th
Niven Numbers
12th
12th
19th
20th
16th
17th
9th
51st
30th
34th
18th
8th
1st
28th
24th
18th
15th
18th
16th
14th
Niven Numbers (Long)
8th
8th
15th
13th
12th
11th
2nd
28th
32nd
19th
16th
4th
6th
21st
19th
13th
13th
Number Spiral
4th
5th
8th
7th
5th
10th
3rd
45th
22nd
18th
7th
6th
11th
27th
9th
13th
9th
5th
5th
8th
Odious Numbers
5th
14th
14th
17th
12th
9th
9th
50th
28th
31st
16th
1st
1st
32nd
19th
17th
16th
10th
7th
17th
9th
17th
40th
34th
52nd
8th
49th
11th
23rd
64th
11th
28th
37th
11th
17th
22nd
13th
11th
16th
44th
23rd
51st
17th
129th
13th
54th
7th
50th
18th
9th
1st
8th
16th
13th
6th
13th
8th
14th
Odious Numbers (Long)
8th
10th
18th
13th
11th
12th
3rd
47th
40th
24th
14th
1st
6th
30th
17th
14th
17th
10th
9th
17th
8th
12th
22nd
31st
25th
3rd
31st
11th
13th
87th
9th
21st
34th
12th
14th
17th
10th
10th
10th
23rd
29th
30th
15th
86th
14th
21st
6th
32nd
12th
11th
7th
7th
12th
12th
5th
9th
6th
12th
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
8th
4th
19th
19th
11th
12th
8th
107th
56th
44th
15th
6th
5th
32nd
15th
11th
13th
Pernicious Numbers
4th
13th
18th
16th
15th
17th
5th
34th
24th
23rd
18th
4th
1st
22nd
20th
16th
1st
16th
17th
1st
12th
17th
1st
24th
39th
6th
44th
4th
1st
40th
11th
16th
28th
8th
18th
1st
1st
13th
21st
28th
23rd
45th
15th
1st
14th
26th
7th
18th
1st
8th
3rd
13th
1st
17th
5th
1st
7th
1st
Pernicious Numbers (Long)
6th
7th
11th
9th
8th
7th
4th
24th
18th
17th
7th
2nd
6th
24th
12th
10th
7th
Poker
Polyominoes
4th
3rd
3rd
2nd
3rd
2nd
5th
8th
4th
9th
3rd
3rd
💎
12th
4th
3rd
3rd
2nd
2nd
3rd
Prime Numbers
9th
12th
15th
39th
14th
13th
10th
104th
57th
41st
17th
1st
1st
37th
14th
13th
14th
12th
3rd
1st
Prime Numbers (Long)
15th
8th
13th
8th
14th
13th
3rd
62nd
37th
37th
13th
10th
6th
32nd
18th
14th
13th
Proximity Grid
QR Decoder
Quine
1st
Recamán
11th
5th
15th
13th
6th
11th
6th
53rd
41st
39th
14th
7th
4th
35th
17th
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
6th
15th
2nd
5th
9th
6th
3rd
45th
21st
15th
5th
5th
3rd
18th
15th
6th
6th
3rd
4th
8th
2nd
4th
9th
8th
6th
3rd
7th
4th
14th
38th
6th
7th
5th
4th
4th
8th
8th
6th
10th
6th
5th
6th
4th
74th
3rd
4th
9th
20th
12th
4th
2nd
4th
4th
4th
3rd
5th
3rd
4th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
2nd
6th
8th
8th
8th
5th
5th
51st
Seven Segment
SI Units
Sierpiński Triangle
6th
7th
10th
11th
9th
9th
5th
62nd
33rd
31st
9th
6th
5th
28th
16th
13th
11th
8th
10th
7th
Smith Numbers
7th
6th
5th
8th
7th
9th
7th
34th
28th
24th
8th
6th
3rd
17th
11th
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
8th
5th
5th
6th
9th
4th
6th
24th
25th
9th
7th
3rd
5th
26th
11th
5th
7th
11th
5th
10th
4th
7th
12th
6th
12th
6th
12th
3rd
12th
91st
6th
10th
7th
7th
6th
7th
9th
8th
9th
13th
18th
21st
8th
158th
4th
8th
6th
22nd
11th
3rd
5th
9th
9th
3rd
4th
4th
3rd
3rd
5th
Transpose Sentence
United States
Vampire Numbers
4th
5th
6th
5th
8th
4th
5th
36th
29th
19th
7th
6th
2nd
27th
12th
Van Eck Sequence
7th
6th
11th
9th
7th
8th
3rd
47th
36th
30th
15th
6th
4th
31st
13th
Zeckendorf Representation
Zodiac Signs
γ
💎
4th
4th
6th
4th
4th
7th
22nd
12th
9th
6th
2nd
6th
14th
8th
4th
5th
4th
4th
9th
4th
4th
4th
5th
4th
3rd
4th
3rd
7th
24th
4th
46th
3rd
3rd
4th
2nd
4th
λ
5th
4th
3rd
9th
5th
4th
13th
22nd
19th
11th
7th
3rd
7th
19th
8th
6th
5th
4th
6th
8th
4th
6th
5th
8th
13th
3rd
π
9th
5th
7th
10th
7th
5th
13th
48th
39th
20th
13th
3rd
8th
35th
10th
12th
8th
7th
9th
10th
5th
7th
17th
11th
27th
5th
τ
8th
4th
5th
9th
5th
5th
12th
24th
21st
13th
13th
3rd
7th
30th
9th
9th
8th
7th
7th
10th
5th
7th
14th
14th
18th
4th
φ
11th
3rd
6th
8th
4th
5th
13th
23rd
22nd
14th
12th
1st
8th
28th
13th
11th
11th
7th
9th
10th
5th
9th
25th
17th
27th
5th
√2
16th
3rd
5th
8th
5th
4th
13th
26th
29th
15th
12th
1st
7th
32nd
13th
13th
10th
7th
11th
11th
5th
6th
33rd
13th
27th
4th
𝑒
11th
4th
10th
12th
6th
8th
14th
43rd
32nd
25th
13th
7th
8th
30th
11th
13th
9th
9th
8th
12th
5th
9th
20th
13th
28th
6th