The game is a sort of odd cousin of Fergus Duniho's Metamorph Chess .
Any piece can make any move it can normally make, or any move any lower ranked piece can make.
Thus a Queen can make a Knight's move, and all pieces can capture Pawns en-passant . If a piece makes a move a lower-ranked piece can make, it becomes that piece. If more than one lower-ranked piece can make that move, it becomes the lowest ranked piece that could have made that move. The board and setup are as usual, and so are not shown here. However, if you wished to better represent the pieces actual movement potential visually, and you had the right sorts of pieces, you could replace the Queens and Rooks with Amazons, the Bishops with Cardinals, and the Knights with Dragons, and still play the game the same way.