Objective of the Game
The objective of Chess960, like traditional chess, is to checkmate your opponent's king. A checkmate occurs when the king is in a position to be captured next turn and there are no legal moves left to the player to prevent this.
Game Setup
- Board and Pieces: Chess960 uses a standard 8x8 chessboard with the same pieces as in standard chess: pawns, rooks, knights, bishops, a queen, and a king for each player.
- Starting Position: The key difference from traditional chess is the random placement of the back-rank pieces. There are 960 possible starting positions.
- Setup Rules:
- The two bishops must be placed on opposite-color squares.
- The king must be positioned between the two rooks.
- Pawns are positioned straight in front of the back-rank pieces as usual.
- Determine Position Randomly: The setup is determined randomly prior to the game start, possibly using a random generator or moderator/computer.
Game Play
- Movement Rules: The movement rules are the same as in standard chess. Pieces move according to the standard movement patterns.
- Castling: Castling is also possible in Chess960 but is adapted to the starting position:
- The objective is for the king to end up on the same squares as it would in standard e1 to g1 (kingside) or e1 to c1 (queenside) castling.
- The squares between the king and rook must be vacant except for the rook and king, and none of the squares the king traverses may be under attack.
Strategic Considerations
- Planning: With variable starts, specific opening preparation as known in standard chess is not applicable. Players must adapt rapidly to positions.
- Creativity: The unpredictable opening forces players to employ a creative approach and focus more on tactical play in the middle-game.
- Flexibility: The ability to adapt to different initial setups is critical.
- King Safety: Special focus on castling and king safety, as unconventional positions can arise, remains a central strategic consideration.
Chess960 is often viewed as a way to promote creativity in chess and prevent opponents from gaining an "opening theory advantage."