Position where one player's pieces cannot move

Two checkers of the same color on king row with one empty square between them to form a bridge

Elimination of one or more of the opponent's pieces by jumping over them

64-square checkered board game

Non-book move intended to force an opponent to use a difficult line of play

Placement of a checker on top of a piece that has reached the last rank to indicate its promotion to king.

Situation where both players agreed that neither has enough advantage nor time to win

Portion of the game where there are 8 or fewer pieces left on the board

Vertical row of squares

Vertical row of squares