A man may be moved in a forward, diagonal, or sideward direction either
one or two diamonds. A man may not be moved in a backward direction.
See Figure 2 in which the arrow represents red's direction of travel.
Any of the ten diamonds occupied by the uncolored men are possible
landing sites for the red man. So, unless a man is near the edge of the
board, the range of movement (or simply the "range") consists of ten diamonds.
Exception: A man may not be moved onto the top of another man of the same
color; men cannot be stacked. However a man can jump over another man of
the same color. See Figure 3. Either of the red men may jump to the diamond
occupied by the uncolored man.
In the game of KORNERS, a player must capture his opponent's man
if it is possible. Capture does NOT take place by jumping as in
CHECKERS, but rather by occupying the same diamond as the captured man as
in CHESS. If any player places a man within the range of any of
his opponent's men, then that player has committed his man to be captured
by his opponent on his opponent's next turn. It often happens that an opponent may capture with more than one of
his men. Then he may choose any of these men with which to
capture, as long as he does capture.