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About the application:

PinChess is an online chess strategy server. The issues are at all difficulty levels from beginner to master. Currently we have more than 40,000 tactical positions. All puzzles are taken from true mini games, and we are generating more strategy puzzles daily. GOAL : In each puzzle search the best move that leads to at least 2 pawns worth of material advantage (In terms of the chess engine, the best move requires at least 200 centipawn advantage). For every position, there is only one solution. But some strategies may need more moves to complete because of tricky moves that the player could be able to handle and complete the puzzle successfully. RATING SYSTEM : The rating system that is using for calculating players and strategies rating is Glicko. For the fresh players, the amount of rating change is high, but it will be lower when the player solved more tactics. To receive the rating and use another statistic info, players must sign in. You can sign in with your Google acc or another email providers. SOME FEATURES : - See your live ranking among all users - Receive more difficult strategies as your rating increased - Some details about the mini game that the puzzle is taken from - See top users by connecting to Google Play Mini games - Embedded Stockfish chess engine for analyzing positions - Help phones and tablets