12 Days of Christmas
38th
21st
27th
16th
91st
9th
99 Bottles of Beer
56th
35th
24th
23rd
108th
Abundant Numbers
6th
14th37th21st
51st33rd
48th12th
25th
69th67th
11th
Abundant Numbers (Long)
21st
26th
27th
11th
37th
Arabic to Roman
26th
19th83rd
25th
12th
93rd
Arithmetic Numbers
1st
Arrows
22nd
23rd
52nd
Ascending Primes
32nd
ASCII Table
58th
30th
5th
236th
brainfuck
36th
17th
8th
60th
Card Number Validation
21st
Catalan Numbers
40th
1st
1st1st
Catalan’s Constant
13th
28th
Christmas Trees
13th
8th
5th
29th20th
190th30th
Collatz
20th3rd21st
27th
50th3rd
47th42nd
CSS Colors
6th
5th
10th
21st18th
Cubes
22nd
8th
18th
155th
Day of Week
1st
Diamonds
43rd
30th
18th
72nd45th
Divisors
14th
38th27th31st
43rd
52nd26th
1st
25th52nd
9th
Emirp Numbers
8th
32nd
18th
14th
27th11th24th
40th26th
7th
Emirp Numbers (Long)
17th
13th
20th
Emojify
19th
63rd
Evil Numbers
27th12th17th
24th
52nd
43rd15th
1st37th
10th
Evil Numbers (Long)
34th
19th
14th
49th
Factorial Factorisation
12th
Farey Sequence
39th
Fibonacci
33rd
4th49th2nd
1st1st157th
101st1st
1st
47th
1st10th
1st
Fizz Buzz
8th22nd166th111th73rd
18th108th109th
182nd1st
49th9th
102nd85th1st77th13th
Foo Fizz Buzz Bar
57th48th45th
42nd
60th27th
1st39th
Forsyth–Edwards Notation
30th
Fractions
37th
38th
27th
164th1st
Game of Life
13th
Gijswijt’s Sequence
21st
Happy Numbers
3rd
49th32nd26th
22nd
45th
37th12th
1st52nd
12th
Happy Numbers (Long)
24th19th8th
35th
27th12th
43rd41st
Hexdump
3rd
85th
Intersection
15th
22nd
6th
72nd
Inventory Sequence
37th
29th
4th
ISBN
11th
14th
7th
48th
Jacobi Symbol
10th
7th
20th16th
49th
Kolakoski Constant
7th
6th
3rd
23rd19th
Kolakoski Sequence
7th6th6th
21st13th
142nd20th
Leap Years
27th
8th23rd5th
18th12th
55th11th
25th
55th164th33rd
11th
Levenshtein Distance
19th
14th
1st
11th
85th1st
Leyland Numbers
16th
21st
39th
8th
208th46th
ln 2
18th
100th
Look and Say
28th
16th
95th64th
Lucky Numbers
23rd
164th29th
Lucky Tickets
9th
23rd
58th21st
Maze
21st
Medal Tally
11th
Morse Decoder
10th
16th
50th
Morse Encoder
11th
9th
12th
10th
50th
Musical Chords
18th
Niven Numbers
46th41st32nd
29th
29th
51st1st
28th
43rd96th32nd
25th
Niven Numbers (Long)
39th
36th
1st
239th
Number Spiral
21st
14th
13th
79th
Odious Numbers
26th11th13th
21st
46th
43rd12th
1st34th
11th
Odious Numbers (Long)
24th
24th
12th
1st
Ordinal Numbers
29th
15th
30th
1st
25th160th
Pangram Grep
23rd
13th
1st
69th62nd
Pascal’s Triangle
29th
19th
46th
17th
141st
Pernicious Numbers
1st
1st
18th
43rd1st
1st24th
Pernicious Numbers (Long)
26th
23rd
20th
217th
Poker
11th
54th
Prime Numbers
25th36th18th
38th1st53rd1st
36th
74th27th
15th
Prime Numbers (Long)
24th25th17th
46th1st43rd1st
3rd
1st73rd
6th
Proximity Grid
9th
QR Decoder
9th
27th
Quine
1st
37th
79th1st
1st88th
Recamán
4th
1st
19th
202nd
Repeating Decimals
20th
Reverse Polish Notation
14th
164th
Rijndael S-box
17th
Rock-paper-scissors-Spock-lizard
12th
62nd
Roman to Arabic
29th
1st12th
Rule 110
6th
11th
79th27th
Scrambled Sort
25th
Seven Segment
26th
13th
14th
45th
SI Units
12th
Sierpiński Triangle
11th7th10th
20th12th
33rd7th
6th
Smith Numbers
4th
14th18th17th
9th
23rd21st
42nd
Spelling Numbers
8th
74th
Star Wars Opening Crawl
26th
Sudoku
9th
56th
Sudoku (Fill-in)
20th
74th
Ten-pin Bowling
19th
Time Distance
15th
82nd
Tongue-twisters
25th
22nd
29th
188th
United States
6th
56th
Vampire Numbers
4th
11th
33rd26th
Van Eck Sequence
32nd
24th
20th
18th
268th
Zodiac Signs
10th
61st
γ
8th
14th
λ
7th
31st
14th
21st21st
59th32nd
π
36th
77th48th
τ
29th
71st39th
φ
25th
31st1st
52nd43rd
√2
19th
32nd1st
157th36th
𝑒
25th
16th
21st
35th
141st27th