12 Days of Christmas
10th
20th54th22nd24th14th
20th9th
12th
15th16th31st10th
11th39th47th
12th
11th10th7th
19th
85th
82nd
9th
29th14th
18th
24 Game
8th
8th
12th
9th
8th
99 Bottles of Beer
29th
67th
26th
12th
35th
5th
10th
109th
17th
Abundant Numbers
19th
1st
22nd
15th
35th
8th
Abundant Numbers (Long)
28th
1st
20th
14th
37th
Alphabetic Numbers
1st
17th
Arabic to Roman
11th1st
31st
15th
Arithmetic Numbers
27th
1st
120th
23rd
Arrows
26th
20th
23rd
9th
21st
21st
Ascending Primes
10th
13th33rd
2nd
6th10th
61st
23rd
3rd
ASCII Table
13th
23rd
53rd
1st
12th
1st
41st
Billiards
63rd
brainfuck
4th25th
22nd
74th
Calendar
1st
Catalan Numbers
35th
1st
10th
1st
Catalan’s Constant
18th
28th
1st
6th
114th
Chess Move Validation
23rd
Christmas Trees
41st
24th
1st
56th
10th
109th
27th
Collatz
36th
5th
144th
Continued Fractions
66th
CSS Colors
21st
24th
186th
1st6th
42nd34th
80th
14th
Cubes
15th
10th
85th
5th
10th
8th
Day of Week
39th
1st
115th
DFA Simulator
18th
45th
Diamonds
26th
9th
76th
32nd
8th
25th
118th
Divisors
11th
27th
41st
1st
16th
25th
37th
Emirp Numbers
12th
13th
11th
8th
27th
35th
Emirp Numbers (Long)
35th
10th
11th
8th
102nd
16th
40th
Emojify
20th
4th
22nd
Evil Numbers
5th
68th
1st
1st
14th
1st
26th
18th
Evil Numbers (Long)
22nd
40th
1st
1st
16th
49th
12th
Factorial Factorisation
10th
10th
17th
8th
32nd
1st
Farey Sequence
13th
5th
26th
23rd
Fibonacci
33rd
10th
31st4th156th69th
5th
32nd
1st44th
28th1st
88th1st
38th
1st
45th32nd33rd
1st
40th
11th75th
37th
1st
Fizz Buzz
60th
1st
1st
1st
10th
9th
1st
86th
Foo Fizz Buzz Bar
31st
18th
1st
Forsyth–Edwards Notation
20th
1st
32nd
Fractions
34th
18th
97th
1st
Game of Life
25th
40th
6th
7th
96th
Gijswijt’s Sequence
19th
1st
Gray Code Decoder
1st
90th
Gray Code Encoder
1st
1st
Happy Numbers
10th
79th
1st
11th
1st
9th
Happy Numbers (Long)
15th
1st
10th
29th
Hexdump
14th
11th
4th
Intersection
26th
5th
25th
30th
7th
Inventory Sequence
13th
20th
1st
11th
63rd
ISBN
31st
9th30th
24th
1st
34th
38th
25th
Jacobi Symbol
23rd
1st
93rd
Kaprekar Numbers
11th
Kolakoski Constant
17th
16th
6th
7th
31st
4th
9th
Kolakoski Sequence
29th
23rd
6th
9th
1st
58th
Leap Years
9th
15th
8th
13th
28th
8th
89th
23rd
80th
Levenshtein Distance
43rd
1st
1st
30th19th
26th
Leyland Numbers
4th
11th
9th
12th
ln 2
1st
1st
1st
1st
Look and Say
18th
1st
122nd
9th
15th
31st
24th
Lucky Numbers
16th
82nd
5th10th
8th
41st
Lucky Tickets
32nd
7th
45th
Mahjong
14th
8th
9th
8th
Mandelbrot
1st
Maze
24th
27th
Medal Tally
9th
15th
Morse Decoder
23rd
91st
Morse Encoder
2nd
8th
Multitap Input
19th
Musical Chords
13th19th
22nd
10th
21st
N Queens
14th
Niven Numbers
23rd
1st
1st
49th
23rd
1st
Niven Numbers (Long)
21st
1st
43rd
15th
56th
Number Spiral
14th10th
17th
1st24th
28th
7th
11th
5th
Odious Numbers
4th
61st
1st
1st
16th
1st
21st
Odious Numbers (Long)
5th
38th
1st
1st
14th
1st
13th
Ordinal Numbers
4th
8th
1st
PalindromemordnilaP
1st
1st
Pangram Grep
25th
36th65th
53rd
1st
252nd
15th
47th
53rd
21st
112th
16th41st
27th
Partition Numbers
3rd
Pascal’s Triangle
30th
12th
1st1st
14th60th
1st
20th
Pernicious Numbers
46th
1st1st
22nd
219th
54th
Pernicious Numbers (Long)
35th
1st1st
14th
121st
18th
Poker
10th
11th
27th
Prime Numbers
13th
46th34th
21st
1st1st
13th
1st
33rd
7th
Prime Numbers (Long)
21st
23rd
21st1st
16th
69th
Proximity Grid
5th
9th
QR Decoder
19th
25th
Quine
1st19th
21st28th1st26th12th2nd114th144th86th24th12th2nd1st26th34th4th3rd13th32nd1st
1st
81st3rd
1st11th96th199th1st71st
33rd1st24th1st1st1st64th
40th1st6th81st
1st113th
6th1st9th15th8th32nd
29th
Recamán
20th
20th
13th
9th
11th
Repeating Decimals
1st
Reverse Polish Notation
27th
1st
71st
121st
Rijndael S-box
4th
50th
14th
9th
5th
44th
2nd
Rock-paper-scissors-Spock-lizard
19th
21st
122nd
9th
Roman to Arabic
59th
25th
33rd
8th
38th
14th
7th
ROT13
34th
1st
Rule 110
15th32nd
12th
10th
30th
45th
Scrambled Sort
29th
27th
1st
14th14th
Semiprime Numbers
2nd
9th
Seven Segment
20th
19th
50th
19th
SI Units
10th
14th
33rd
Sierpiński Triangle
13th32nd
14th
13th
11th
56th
12th
Smith Numbers
9th
17th
10th
49th
Spelling Numbers
30th1st
168th
Sphenic Numbers
6th
Star Wars GPT
1st
Star Wars Opening Crawl
19th
56th
24th
4th
Sudoku
9th
11th
Sudoku (Fill-in)
19th
3rd
20th
Taxicab Numbers
11th
1st
Ten-pin Bowling
20th20th
19th
Tic-tac-toe
5th
Time Distance
16th
33rd
Tongue-twisters
17th
15th
37th
11th
20th
19th
4th
20th
Topological Sort
16th
Tower of Hanoi
37th
1st31st
13th
49th
7th
40th
36th
1st
17th
Transpose Sentence
1st
7th
Trinomial Triangle
1st
Ulam Sequence
12th
United States
14th
8th
21st1st
Vampire Numbers
8th
6th
28th
Van Eck Sequence
8th
10th
1st16th
68th
11th
1st
10th
Zeckendorf Representation
1st
34th
Zodiac Signs
29th
19th
5th
10th
γ
19th
1st
8th
5th
λ
24th
9th
22nd36th
56th6th
8th
7th
5th
7th
π
31st
12th
1st
6th
6th27th
23rd
21st
8th
τ
23rd
21st
57th
6th
6th
57th
7th
φ
16th
39th
1st
1st
6th
1st
193rd
7th
√2
28th
1st
1st
6th
1st
1st
7th
𝑒
28th
1st
11th
1st
6th
33rd
1st46th16th
8th