How to play
Crazy House

Similar to Bughouse chess, but for two players. Captured pieces are dropped back on to the board.

Introduction

Crazy House rules are the same as Standard Chess but with the addition of piece drops, which become available after a capture is made.

Starting Position

This variant is played from the standard starting position of Standard Chess.

Moves of the Pieces

Pieces move as in Standard Chess, but captured pieces can also be dropped on to the board from a pocket where captuered pieces are retained.

White can drop captured pieces on to the board rather than making a regular move.
Board is interactive - make a move

Capturing

As a piece is captured it flips color before being kept in a pocked for a drop on a subsequent move.

Captured promoted Pawns are added to the pockets as Pawns , not the promoted piece.

Drops

Captured pieces can be dropped on to the board instead of making a regular move.

Dropping a piece that would give checkmate immediately is permitted, as is dropping a piece to block what would otherwise be checkmate.

Pawns cannot be dropped on the 1st or 8th rank.

Pawn Promotion

Dropped pawns on the 2nd and 7th ranks can make a double movement on their next move.

Castling

A dropped rook cannot castle.

En Passant

En passant rules remains the same as Standard Chess.

Check and Checkmate

A piece drops can give checkmate, as shown below.

White can drop a Knight on F6 to mate.
Board is interactive - make a move

Stalemate

Stalemate conditions remain the same as Standard Chess.

Draw

Draw conditions remain the same as Standard Chess.

Winning

Winning conditions remain the same as Standard Chess.

Also Known As

Drop ChessMad ChessReinforcement ChessTurnabout ChessSchizo-Chess