Games
Problems on games, including Nim and its variants, Sprague-Grundy numbers, finding winning and losing positions, games on graphs and trees, chess-piece puzzles, card and board games, and simulating a game by its rules.
Related problem sets are under Dynamic programming, Bitwise operations and Implementation.
Problems
King#3458
Very hard
Root NIM#3505
Easy
Polygon Game#3670
Very hard
Fire in the Country#3682
Very easy
Fingers#3690
Easy
Subtract the square#3711
Very easy
Poddavki#3713
Easy
Super Greedy 2#3716
Very easy
Greedy#3717
Medium
Sum of games#3718
Medium
Terminator#3719
Easy
Nim Withoff#3721
Easy
Game with palindromes (Hard)#4367
Very easy
The King in the Corner#4446
Very easy
Relaxation by the River Junior#4570
Very hard
Card Duel#4577
Very easy
Junior Card Duel#4578
Medium
Hop-skip#4655
Hard