Pfff, Alice Chess is nothing. Real Men (tm) play Alice Entropy Inertia Evolving Magnetic/Gravity Chess.
You have two boards. You have the following additional rules, beyond those of Alice Chess:
# There is no notion of check, checkmate or stalemate. The winner is the player who captures the opponent's king.
# If you moved a piece without making a capture in your last move, you are forced to play the same piece in the same direction without making a capture. If you can't, you are free to play whatever you want following Rules 1-2.
# If you made a capture in your last move, you are forced to play the same piece in the same direction and make another capture with it. If you can't, you're free to play whatever you want following rules 1-2.
# Checking or mating the opponent according to the FIDE rules in the middle of the moves are not valid reasons to stop moving/taking.
# 'Direction' is meant in the oriented sense, so that there are 16 different directions possible in all, including the knight moves.
# A king is not allowed to castle if he escapes an immediate capture or if the intermediate square he would cross is under immediate attack - like in FIDE rules but with Inertia rules of moves.
# After castling, player's next move is free: the castling king and rook stay on their new position without having to continue their course.
# After each move, the player can make an optional "brownian move", i.e., pick an enemy piece (except the king and the last moved piece) and put it on a empty square not attacked by the player's pieces. Bishops, if moved, must be placed in squares of the same color.
# A player cannot move the piece that was used in the last brownian move made by the adversary.
Additionally, you must introduce the following:
xOy
( x,y belongs to {b,w} and O belongs to {R,A,N} ) means a piece of colour x (b=black, w=white) operates (R=repels, A=attracts or N=don't interfere) with piece of colour y at the same row or column where it moves to (like in the above games)
eg, bRb means a black piece repels a black piece (like in Magnetic)
We can define these 4 games in the following way:
Magnetic:
wRw wAb bAw bRb, or shortly, RAAR
Anti-Mag:
ARRA
Gravity:
AAAA
Anti-Grav:
RRRR
Normal Chess:
NNNN, ...
Each player changes one letter in the 4 letter sequence at the beginning of each round.
So... Want to play a game? It's just a conglomeration of the variants from
here.