Spanish checkers is played on the dark squares only of a standard checkerboard of 64 alternating dark and light squares.
The board is positioned squarely between the players and turned so that a dark square is at each player's near right side.
The object of the game is to prevent the opponent from being able to move when it is his turn to do so.
This is accomplished either by capturing all of the opponent's checkers,
or by blocking those that remain so that none of them can be moved.
If neither player can accomplish this, the game is a draw.
Single checkers, known as men, move forward only, one square at a time in a diagonal direction,
to an unoccupied square. Men capture by jumping over an opposing man
on a diagonally adjacent square to the square immediately beyond, but may do so only if this square is unoccupied.
Men may jump forward only, and may continue jumping as long as they
encounter opposing checkers with unoccupied squares immediately beyond them. Men may never jump over checkers of the same color.
A man which reaches the far side of the board, whether by means of a jump or a simple move, becomes a king, and the move terminates.
The opponent must then crown the new king by placing a checker of the same color atop it.
A player is not permitted to make his own move until he crowns his opponent's king.
Kings move forward or backward any number of squares on a diagonal line to an unoccupied square.
Kings capture from any distance along a diagonal line by jumping, forward or backward.
Whenever a player is able to make a capture he must do so. When there is more than one way to jump,
a player must choose a sequence of jumps which results in the capture of the greatest possible number of opposing units, men and kings
each counting as one unit. A "huff" of a checker for failure to jump properly is not permitted. The incorrect move must be retracted, and a correct move must be made. If possible, the correct move must be made with the man or king originally moved incorrectly.
A king may not jump over the same opposing man or king more than once.
Captured checkers are not removed from the board until all jumps made on the move are completed.