Castle Chess MasterMind

國際象棋是一款兩人策略棋盤遊戲，是另一位國王的死將。

The king moves one square in any direction. The king also has a special move called castling that involves also moving a rook.

A rook can move any number of squares along a rank or file, but cannot leap over other pieces. Along with the king, a rook is involved during the king's castling move.

A bishop can move any number of squares diagonally, but cannot leap over other pieces.

The queen combines the power of a rook and bishop and can move any number of squares along a rank, file, or diagonal, but cannot leap over other pieces.

A 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 vertically and one square horizontally, or two squares horizontally and one square vertically.) The knight is the only piece that can leap over other pieces.

A pawn can move forward to the unoccupied square immediately in front of it on the same file, or on its first move it can advance two squares along the same file, provided both squares are unoccupied (black dots in the diagram); or the pawn can capture an opponent's piece on a square diagonally in front of it on an adjacent file, by moving to that square (black "x"s). A pawn has two special moves: the en passant capture and promotion.

Chess pieces:

- The pawn moves to one field forward or two fields at the first move of this figure; beats diagonally to one field forward.

- The king moves to one field in the vertical, horizontal or diagonal.

- The queen moves to any distance vertically, horizontally or diagonally.

- The rook moves to any distance vertically or horizontally.

- The knight moves to the field two fields along the vertical and one horizontally or one field vertically and two horizontally.

- The bishop moves to any distance diagonally.

Important Chess situations:

- Check - the situation in chess when a king is under immediate attack by opponent's pieces

- Checkmate - the situation in chess when the player whose turn it is to move is in check and has no legal move to escape check.

- Stalemate - the situation in chess when the player whose turn it is to move has no legal move and is not in check.

The goal of the game is to checkmate the other king.

Two special moves in Chess:

- Castling is a double move, performed by the king and the rook that never moved.

- En passant is a move in which a pawn can take an opponent's pawn if it jumps over a field under the pawn's blow.

Features:

- Ability to undo a move

- Stars for levels completed without the undo button

- Seven different themes

- Two board views (Vertical - 2D and Horizontal - 3D)

- Two player mode