12 Days of Christmas
162nd
Abundant Numbers (Long)
52nd
Arithmetic Numbers
89th
Arrows
81st
Card Number Validation
26th
CSS Colors
94th
Divisors
238th
Game of Life
44th
Intersection
61st
Inventory Sequence
22nd
Look and Say
26th
Lucky Numbers
40th
Odious Numbers
177th
Smith Numbers
43rd
Sudoku
32nd
Tongue-twisters
155th
Zodiac Signs
18th
√2
32nd