Math Games problems

Problem Name Online Judge Difficulty Level
1 M&M Game SPOJ 1
2 Playing With Balls SPOJ 1
3 Happy Coins SPOJ 1
4 The Game SPOJ 2
5 A Coin Game SPOJ 2
6 Face the mate SPOJ 4
7 Number Game SPOJ 5
8 GAMING ARENA SPOJ 6
9 Black and White Nim SPOJ 6