Knight Exchange

"Knight Exchange" is a solitaire game that is simple to play but, like chess, is difficult to master. In this game the board is a four by four grid. Twelve markers, each representing a chess knight, are placed on the board, with six white markers placed in the lower right of the grid and six black markers placed in the upper left of the grid. The object of the game is to have the white markers trade places with the black markers in the fewest possible number of moves, with each piece moving as a knight moves in chess.