Normally each player starts with 20 checkers each, but we permit players to start with 15 each as an alternative. Checkers can only move diagonally forward, either by sliding to an adjacent empty square or by jumping over an enemy piece to a vacant square on the other side. Jumping over a piece captures it. Capturing is mandatory, and you must keep jumping and capturing as long as it is possible, and take the maximum number of pieces.
Men can capture backwards or forwards.
The King is a long range piece and can move along any diagonal and jump over any opponent piece to any free square. When your Checker stops on the other end of the board, it becomes a King and can then also move diagonally backwards. If it merely visits a promotion square during a series capture moves, then it does not promote. Plan ahead and try not to leave your opponent with multiple jumps. Checkers move diagonally forward to empty squares and capture by jumping diagonally in any direction.