Abstract: A hand-held opaque playing board has a different maze structure on each of two faces with holes passing through the board between the two maze structures. Each maze structure is divided approximately in half by an impassable barrier. Gravity moves the playing piece when the board is tilted. When the ball passes through the board from one maze structure to the other, the board must be turned over to view the other maze structure. The ball must travel from the start position at one end on one face through the maze structures back and forth through the board until the playing pieces lands in the finish position at the other end on the other face in the shortest time. The maze can also be played on a hand-held electronic device or on a stationary screen device, such as a computer, using a controller to simulate tilting and turning the board.

Abstract: A hand-held opaque playing board has a different maze structure on each of two faces with holes passing through the board between the two maze structures. Each maze structure is divided approximately in half by an impassable barrier. Gravity moves the playing piece when the board is tilted. When the ball passes through the board from one maze structure to the other, the board must be turned over to view the other maze structure. The ball must travel from the start position at one end on one face through the maze structures back and forth through the board until the playing pieces lands in the finish position at the other end on the other face in the shortest time. The maze can also be played on a hand-held electronic device or on a stationary screen device, such as a computer, using a controller to simulate tilting and turning the board.