The Knight's Challenge app for iPhone and iPad

The rules of chess define how each piece moves on the chess board. The knight moves in an unusual way and it has a special power. It can move over other pieces. |Here are the ways a knight can move: All of the pieces on a chess board move in straight lines, except the knight.

The knight can move in an “L-shape”. In other words, knights can move two squares in any direction vertically followed by one square horizontally, or two squares in any direction horizontally followed by one square vertically. If the knight is in the center of the board, it can move to 8 different positions and it can move over other pieces on the board. The object of The Knight’s Challenge has several chess puzzles. The classic Knights Tour challenge is to move the knight to all of the 64 spaces on the board in the least number of moves. Other challenges involve arrangement of pawns where the goal is to capture all the pawns in the fewest number of moves.