My Chess Puzzles (Chess Tactics) includes over 10.000 interactive chess problems ranging from mate in 2 moves all the way to mate in 10 moves! The object is to finish each puzzle by forcing a checkmate in a given number of moves.
The goal of all chess puzzles is to checkmate your virtual (AI) opponent no matter what moves they make (a forced mate), in the requested number of moves. All of the puzzles were hand picked and were either taken from actual games or are compositions inspired by actual games. All chess puzzles are automatically verified, so all solutions are guaranteed to be correct and complete.
You can also compete with other players using Google Play Leaderboard system. You get 10 points every puzzle you solve. But if you use retry or hint, you get less points. Plus, puzzles get harder in higher levels but you get more points.