12 Days of Christmas
9th
10th
22nd
13th
3rd
4th
123rd
47th
86th
5th
3rd
3rd
16th
13th
24 Game
2nd
4th
3rd
3rd
6th
3rd
12th
9th
8th
5th
1st
2nd
13th
6th
99 Bottles of Beer
6th
8th
11th
13th
5th
9th
65th
46th
33rd
4th
2nd
5th
12th
11th
12th
7th
Abundant Numbers
5th
15th
14th
13th
6th
9th
33rd
37th
28th
6th
3rd
4th
11th
24th
13th
15th
16th
4th
15th
Abundant Numbers (Long)
7th
14th
11th
13th
5th
6th
26th
25th
26th
7th
1st
4th
10th
20th
14th
10th
Arabic to Roman
Arithmetic Numbers
7th
8th
8th
6th
5th
3rd
19th
21st
15th
7th
💎
4th
12th
11th
9th
11th
Arrows
Ascending Primes
6th
9th
5th
4th
8th
6th
29th
16th
20th
9th
3rd
2nd
12th
8th
9th
ASCII Table
7th
10th
14th
6th
12th
13th
44th
34th
23rd
3rd
2nd
10th
16th
12th
8th
9th
9th
6th
9th
7th
8th
25th
15th
17th
6th
12th
6th
16th
18th
9th
10th
14th
7th
8th
9th
11th
9th
6th
15th
25th
29th
13th
41st
7th
11th
5th
43rd
32nd
4th
10th
5th
6th
brainfuck
Card Number Validation
Catalan Numbers
18th
3rd
6th
3rd
3rd
8th
16th
31st
18th
14th
8th
2nd
37th
18th
Catalan’s Constant
5th
3rd
6th
2nd
2nd
7th
7th
16th
6th
7th
💎
2nd
22nd
9th
8th
6th
6th
6th
6th
3rd
3rd
4th
6th
10th
4th
Christmas Trees
8th
10th
9th
5th
7th
34th
20th
44th
15th
5th
2nd
Collatz
15th
20th
13th
9th
16th
7th
49th
3rd
27th
7th
3rd
7th
15th
15th
13th
12th
CSS Colors
Cubes
4th
5th
6th
9th
7th
9th
28th
37th
11th
4th
2nd
Day of Week
DFA Simulator
Diamonds
7th
11th
9th
8th
9th
15th
64th
54th
33rd
8th
💎
5th
28th
36th
8th
12th
Divisors
16th
19th
33rd
14th
7th
18th
42nd
69th
27th
11th
7th
5th
24th
26th
15th
1st
12th
1st
11th
11th
19th
31st
25th
Emirp Numbers
4th
11th
13th
5th
7th
6th
11th
23rd
6th
10th
4th
1st
14th
11th
Emirp Numbers (Long)
4th
9th
8th
8th
7th
5th
41st
31st
26th
5th
💎
5th
10th
12th
Emojify
Evil Numbers
7th
12th
18th
12th
13th
8th
56th
32nd
29th
17th
3rd
1st
31st
21st
16th
16th
13th
15th
17th
10th
20th
45th
32nd
57th
10th
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
16th
13th
11th
12th
3rd
56th
43rd
29th
15th
1st
6th
29th
17th
13th
17th
8th
10th
17th
8th
11th
26th
30th
29th
3rd
33rd
11th
15th
102nd
9th
20th
36th
11th
15th
16th
10th
11th
6th
24th
33rd
34th
15th
32nd
12th
21st
6th
34th
15th
11th
8th
7th
12th
12th
5th
9th
7th
12th
Factorial Factorisation
4th
6th
5th
5th
6th
4th
31st
13th
16th
8th
5th
💎
10th
9th
7th
7th
Farey Sequence
4th
12th
7th
8th
13th
5th
34th
17th
24th
12th
2nd
4th
21st
9th
11th
11th
Fibonacci
75th
38th
7th
3rd
27th
14th
85th
84th
75th
25th
10th
11th
40th
36th
32nd
26th
29th
25th
24th
Fizz Buzz
70th
33rd
98th
11th
19th
48th
31st
139th
69th
5th
4th
10th
14th
43rd
42nd
15th
15th
48th
22nd
Foo Fizz Buzz Bar
10th
18th
27th
7th
7th
4th
40th
49th
30th
6th
2nd
7th
14th
17th
17th
11th
6th
9th
13th
Forsyth–Edwards Notation
5th
Fractions
Game of Life
Gijswijt’s Sequence
6th
5th
7th
4th
8th
2nd
16th
12th
14th
7th
3rd
💎
19th
6th
8th
8th
3rd
3rd
5th
Happy Numbers
3rd
19th
16th
7th
13th
8th
18th
24th
8th
11th
4th
1st
13th
17th
Happy Numbers (Long)
4th
18th
14th
10th
13th
7th
61st
35th
28th
13th
5th
5th
25th
18th
Hexdump
Intersection
Inventory Sequence
7th
16th
12th
8th
10th
12th
36th
24th
29th
11th
5th
4th
22nd
16th
ISBN
Jacobi Symbol
Kaprekar Numbers
2nd
5th
5th
3rd
7th
2nd
23rd
12th
18th
8th
💎
1st
8th
9th
8th
4th
💎
3rd
4th
Kolakoski Constant
6th
4th
7th
2nd
2nd
10th
13th
13th
10th
9th
2nd
2nd
24th
9th
7th
7th
6th
5th
7th
4th
7th
7th
9th
13th
4th
10th
2nd
9th
39th
3rd
11th
6th
6th
7th
6th
3rd
Kolakoski Sequence
14th
11th
13th
7th
14th
11th
45th
27th
29th
8th
6th
5th
33rd
19th
13th
12th
4th
7th
9th
Leap Years
21st
4th
34th
11th
1st
5th
5th
8th
3rd
8th
7th
10th
12th
10th
14th
1st
13th
5th
1st
Levenshtein Distance
Leyland Numbers
5th
10th
8th
4th
7th
4th
24th
37th
21st
8th
💎
3rd
12th
11th
ln 2
8th
4th
7th
3rd
3rd
6th
15th
15th
12th
11th
3rd
3rd
28th
12th
8th
7th
6th
6th
9th
4th
5th
8th
11th
13th
3rd
Look and Say
6th
10th
13th
6th
7th
7th
29th
37th
26th
13th
11th
4th
30th
21st
Lucky Numbers
4th
6th
7th
6th
8th
8th
32nd
24th
20th
8th
4th
6th
31st
12th
Lucky Tickets
Mahjong
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
💎
5th
4th
2nd
4th
4th
17th
13th
11th
7th
💎
2nd
7th
6th
4th
2nd
3rd
2nd
5th
Niven Numbers
12th
19th
20th
16th
17th
9th
37th
30th
34th
17th
8th
1st
28th
24th
18th
15th
19th
16th
14th
Niven Numbers (Long)
8th
15th
13th
12th
11th
2nd
25th
32nd
19th
15th
4th
6th
23rd
19th
13th
13th
Number Spiral
3rd
8th
7th
4th
8th
3rd
35th
22nd
11th
7th
5th
11th
23rd
9th
13th
9th
4th
5th
6th
Odious Numbers
6th
14th
17th
12th
9th
9th
50th
28th
27th
16th
3rd
1st
32nd
19th
17th
16th
11th
7th
17th
9th
17th
40th
34th
52nd
9th
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
18th
13th
11th
12th
3rd
45th
40th
24th
14th
1st
6th
30th
17th
14th
17th
7th
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
11th
5th
9th
6th
12th
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
8th
19th
19th
11th
12th
8th
107th
56th
43rd
15th
5th
5th
30th
15th
11th
13th
Pernicious Numbers
5th
18th
16th
15th
17th
5th
32nd
24th
23rd
18th
4th
1st
16th
20th
16th
1st
16th
17th
3rd
12th
17th
1st
24th
39th
5th
44th
5th
1st
40th
11th
18th
28th
8th
18th
1st
1st
13th
21st
28th
23rd
47th
15th
1st
14th
29th
7th
18th
1st
8th
4th
13th
1st
16th
5th
1st
7th
1st
Pernicious Numbers (Long)
6th
11th
9th
8th
7th
4th
24th
18th
17th
6th
2nd
6th
24th
12th
10th
7th
Poker
Polyominoes
3rd
3rd
2nd
2nd
💎
5th
7th
4th
7th
3rd
2nd
💎
12th
4th
3rd
3rd
💎
2nd
3rd
Prime Numbers
10th
15th
39th
14th
13th
10th
98th
57th
3rd
17th
3rd
1st
37th
14th
13th
14th
13th
5th
1st
Prime Numbers (Long)
15th
13th
8th
14th
13th
3rd
61st
37th
37th
13th
10th
6th
32nd
18th
14th
13th
Proximity Grid
QR Decoder
Quine
1st
21st
1st
Recamán
11th
15th
13th
6th
11th
6th
53rd
41st
38th
14th
6th
4th
35th
17th
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
4th
2nd
5th
9th
5th
3rd
42nd
21st
14th
5th
3rd
3rd
18th
15th
6th
6th
2nd
4th
5th
2nd
4th
9th
8th
6th
3rd
7th
3rd
15th
35th
5th
6th
5th
4th
4th
8th
8th
6th
5th
6th
5th
6th
4th
66th
2nd
4th
9th
18th
11th
4th
2nd
4th
4th
3rd
3rd
4th
3rd
3rd
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
2nd
8th
8th
8th
5th
5th
51st
Seven Segment
SI Units
Sierpiński Triangle
5th
10th
11th
9th
8th
5th
62nd
32nd
30th
8th
6th
5th
23rd
16th
13th
11th
6th
9th
7th
Smith Numbers
5th
5th
8th
6th
9th
7th
33rd
27th
24th
8th
6th
3rd
14th
11th
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
4th
5th
6th
9th
4th
6th
12th
27th
5th
5th
3rd
5th
14th
11th
5th
7th
6th
5th
2nd
4th
7th
12th
7th
12th
3rd
12th
3rd
13th
36th
4th
6th
💎
7th
7th
5th
9th
8th
6th
13th
18th
21st
8th
42nd
3rd
5th
6th
12th
5th
2nd
5th
9th
9th
2nd
4th
3rd
4th
2nd
6th
Transpose Sentence
United States
Vampire Numbers
1st
6th
5th
4th
3rd
5th
12th
11th
8th
7th
5th
2nd
27th
10th
Van Eck Sequence
7th
11th
9th
7th
8th
3rd
47th
36th
30th
15th
6th
4th
29th
13th
Zeckendorf Representation
Zodiac Signs
γ
2nd
4th
6th
2nd
2nd
7th
8th
9th
5th
5th
💎
💎
16th
9th
4th
5th
5th
3rd
6th
4th
3rd
4th
6th
4th
3rd
3rd
💎
3rd
25th
2nd
46th
3rd
2nd
5th
2nd
2nd
λ
6th
3rd
9th
2nd
2nd
13th
11th
9th
7th
7th
2nd
3rd
19th
9th
6th
5th
5th
3rd
6th
4th
3rd
5th
8th
13th
3rd
π
9th
7th
10th
6th
5th
13th
44th
27th
17th
13th
3rd
4th
34th
11th
12th
8th
8th
7th
8th
5th
7th
14th
11th
27th
5th
τ
8th
5th
9th
5th
4th
12th
22nd
20th
13th
13th
3rd
4th
30th
10th
9th
8th
8th
7th
8th
5th
7th
13th
14th
18th
4th
φ
10th
6th
8th
4th
4th
13th
20th
21st
12th
12th
1st
2nd
24th
13th
11th
11th
8th
9th
8th
5th
9th
25th
17th
27th
4th
√2
16th
5th
8th
4th
3rd
13th
20th
27th
14th
12th
1st
2nd
30th
13th
13th
10th
8th
9th
9th
5th
6th
33rd
13th
27th
4th
𝑒
10th
10th
12th
6th
8th
14th
42nd
31st
25th
13th
7th
4th
30th
12th
13th
9th
10th
8th
10th
5th
9th
19th
13th
28th
6th