How to play Alice Chess

Alice chess , how to play the rules are the same as regular chess except for these changes .

For a refresher of those rules , check out this video lay out two boards next to each other in the same orientation but only set up the pieces on one of them .

After a piece completes a move , it is transferred to the same relative space on the other board .

This transfer is not optional and must be performed after every move .

In order for pieces to move , the pieces move must be legal on the board .

It starts the turn on and the space it is transferred to on the other board must be vacant .

Therefore , capturing a piece is only available on the board .

The piece starts the turn on .

After capture the capturing piece transfers to the other board .

The same way a non capture move would a king may not move into check on one board in order to move to a free space on the other board , the king may not perform a move if it's transferred to the other board would put the king in check .

Castling is performed as normal with both the king and rook transferring boards at the end of the turn on Passan is allowed like normal pawns may promote on either board .

An alternative way to play is to have the black pieces start the game on the other board .

You can also choose to allow null moves .

So that instead of moving a piece on the board , it starts the turn on .

It may instead stay in its current relative position and transfer to the other board .

However , a king may not escape check with a null move the first player to checkmate their opponent wins .