英语翻译the player may place one piece at a time at any place in

英语翻译the player may place one piece at a time at any place instead of making a turn.when he clicks on an unoccupied square,a ghost image of the piece appears,the player may then select a piece from the reserve and confirm its placement.if the fog of war and reserve are both active,it is possible to place a piece on the field to check or even checkmate the opponent's king