Chess Rules King

The king is the most important piece on the board, for once he is lost the game is lost. The king can only move one square in any direction. There is only one restriction on his movement:  he may not move into a position where he may be captured by an opposing piece. Because of this rule, two kings may never stand next to each other or capture each other.

Guard the king closely. His loss means loss of the game. He is typically not a good piece to use on offense, but will be a help in a carefully constructed defense.