The game is based on the game of chess but contains rearranged chess pieces.
Free game, no IAP. Available on Desktop and Mobile.
Play Fischer Random Chess Here.
Quick Rules for Fischerandom Chess
Fischerandom Chess is played with a normal chess board and pieces.
All rules of Orthodox Chess apply except as otherwise noted.
The initial configuration of the chess pieces is determined
randomly for White, and the black pieces are placed
equal and opposite the white pieces. The piece placement
is subject to the constraints:
the king is placed
somewhere between the two rooks, and
the
bishops are on opposite colors.
pawns are placed on each player's second rank as
in Orthodox Chess.
There are 960 such
configurations.
Castling, as in Orthodox chess, is an exceptional move involving
both the King and Rook. Castling is a valid move under these circumstances:
Neither King nor Rook has moved.
The King is not in check before or after castling.
All squares between the castling King's initial and final squares (including the
final square), and all of the squares between the castling Rook's initial and final squares
(including the final square), must be vacant except for the King and Rook.
No square through which the King moves is under enemy attack.
The movement of the King and Rook during castling should be easily understood by players
of Orthodox Chess:
When castling on the h-side (White's right side), the King ends
on g1 (g8), and the rook on f1 (f8),
just like the O-O move in Orthodox chess.
When castling on the a-side (White's left side), the King ends
on c1 (c8), and the rook on d1 (d8),
just like the O-O-O move in Orthodox chess.
Sometimes the King will not need to move; sometimes the Rook will
not need to move. That's OK.
The object is to checkmate the opponent's King. Have fun!
Bobby Fischer explanation in his own words during Buenos Aires announcement
Game Design
The game is fast and exciting as you start right into the middle game.
Castling is done by moving the king, rook moves automatically.
When swapping sides the computer makes its move instantly (since it's its turn) so you may be disoriented at first and not notice it.
AI Design:The computer recursively explores the tree of possible
moves, keeping score along the way. It tries to take as many pieces as possible and get into the center early. That's about all. It's endgame strategy is to win before the endgame.
