Complex sentence: Each player receives an even number of pieces to play the game and the goal is to move a piece around the board clockwise, entering the castle, and to regain his castle back in a counterclockwise direction so as to make it reach the center.
Split into simpler sentences: Each player receives an even number of pieces to play the game. The goal is to move a piece around the board clockwise, entering the castle, and to regain his castle back in a counterclockwise direction so as to make it reach the center.