12 Days of Christmas
81st
99 Bottles of Beer
80th
Abundant Numbers
374th
Arabic to Roman
269th
Arithmetic Numbers
213th
Ascending Primes
192nd
Billiards
67th
Christmas Trees
690th
Diamonds
40th
Emirp Numbers
143rd
Emirp Numbers (Long)
31st
Evil Numbers
1st
Evil Numbers (Long)
33rd
Fizz Buzz
38th
Leap Years
448th
Look and Say
320th
Medal Tally
41st
Poker
32nd
Prime Numbers
449th
Roman to Arabic
310th
ROT13
45th
Sudoku (Fill-in)
105th
Tic-tac-toe
50th
Time Distance
35th
Vampire Numbers
44th