Duck Chess

Move a chess piece, then move the duck that blocks the board.

Each turn has two steps. First make any ordinary king-capture chess move, then relocate the neutral duck to a different empty square. The duck cannot be captured and no piece may land on it. It blocks pawns, kings and sliding pieces, while knights can jump over it. There is no check, and capturing the enemy king wins. If the duck leaves a player with no legal move, that stuck player wins.