In our first course you`ll learn how the pieces move. We`ll begin with the highest piece-the king! The only piece what cannot be captured but “checkmated”. To checkmate the “opponent`s” king is the goal of the game.He can move diagonally or orthogonally, but always only one square.He can capture, but not be captured! The only piece that can not be capturd but "checkmated".).If someone`s king checkmated, he has lost the game. To checkmate the king is the goal of the game. The King captures as he moves: Only one square, but in each direction (diagonally or straight.) Look at this animated graphic: (Take a few seconds to see!).