When a checker achieves the opponent's edge of the board (called the "king's row") it is crowned with another checker. This signifies that the checker has been made a king. The king now gains an added ability to move backward. The king may now also jump in either direction or even in both directions in one turn (if he makes multiple jumps).
If the player gets an uncrowned checker on the king's row because of a capturing move then he must stop to be crowned even if another capture seems to be available. He may then use his new king on his next move.
