One mathematician calculated that a game’s first 10 moves alone could be played in 170,000,000,000,000,000,000,000,000 different ways.
The rules of chess are pretty straightforward.
Each chess piece has its particular type of movement.
- The king moves one square in any direction, the king has also a special move which is called castling and also involves a rook.
- The rook can move any number of squares along any rank or file, but may not leap over other pieces. Along with the king, the rook is also involved during the king’s castling move.
- The bishop can move any number of squares diagonally, but may not leap over other pieces.
- The queen combines the power of the rook and bishop and can move any number of squares along rank, file, or diagonal, but it may not leap over other pieces.
- The knight moves to any of the closest squares that are not on the same rank, file, or diagonal, thus the move forms an “L”-shape two squares long and one square wide. The knight is the only piece that can leap over other pieces.
- The pawn may move forward to the unoccupied square immediately in front of it on the same file, or on its first move it may advance two squares along the same file provided both squares are unoccupied, or it may move to a square occupied by an opponent’s piece, which is diagonally in front of it on an adjacent file, capturing that piece. The pawn has two special moves, the en passant capture and pawn promotion.