12 Days of Christmas
89th
99 Bottles of Beer
84th
Abundant Numbers
400th
Arabic to Roman
287th
Arithmetic Numbers
241st
Ascending Primes
231st
Billiards
80th
Christmas Trees
717th
Diamonds
42nd
Emirp Numbers
152nd
Emirp Numbers (Long)
36th
Evil Numbers
1st
Evil Numbers (Long)
38th
Fizz Buzz
42nd
Leap Years
470th
Look and Say
338th
Medal Tally
46th
Poker
36th
Prime Numbers
474th
Roman to Arabic
326th
ROT13
53rd
Sudoku (Fill-in)
111th
Tic-tac-toe
57th
Time Distance
37th
Vampire Numbers
49th