It was probably abandoned because the maker had made a mistake in placing a diagonal line. The starting position is shown above. Each player has twelve pieces. Only the center position has no piece on it at the start of a game. White moves first.
Pieces move along the lines from intersection to intersection.
Captures are made by jumping a piece over an opponent's piece to an empty position behind it. All captures are mandatory. Jumps may be in any direction including backwards. Multiple jumps by the same piece during a single turn are not only permitted, but compulsory. The opponent then takes his turn as normally.