The Standerd rules apply, except in the following.
There is no notion of check, checkmate or stalemate. The player capturing the opponent's king wins.
Every piece has a charge generating a magnetic field, except the two kings which have a neutral charge. White pieces are positive, and Black are negative (or vice versa, of course :)
When a piece is moved to a specific square, their closest neighbours at the same rank and column (not diagonal) are repelled if they have the same charge (hence the same colour), and attracted if they have an opposite charge (hence have different colours). A king isn't repelled or attracted, doesn't repel or attract and has a blocking effect on the magnetic field lines
all pawns/pieces have a magnetic feild of 3 squares in all non-diaganol directions, and as soon as a piece or pawn is blocked by another piece, it stops moving.
Yes, bishops can change color.