12 Days of Christmas
90th
99 Bottles of Beer
86th
Abundant Numbers
402nd
Arabic to Roman
288th
Arithmetic Numbers
244th
Ascending Primes
231st
Billiards
81st
Christmas Trees
721st
Diamonds
42nd
Emirp Numbers
152nd
Emirp Numbers (Long)
38th
Evil Numbers
1st
Evil Numbers (Long)
38th
Fizz Buzz
42nd
Leap Years
470th
Look and Say
341st
Medal Tally
47th
Poker
36th
Prime Numbers
476th
Roman to Arabic
327th
ROT13
54th
Sudoku (Fill-in)
111th
Tic-tac-toe
58th
Time Distance
38th
Vampire Numbers
49th