DRAUGHT-BOARD Russian patent published in 2017 - IPC A63F3/02 

FIELD: games.

SUBSTANCE: in the proposed board each row is made up of four squares, each of which is unfolded in the plane of the board around its vertical axis passing through the square center by 45° so that the squares touch each other with corners, and each of the rows is set close to each other with a shift of all the even ones by one size, equal to half the diagonal of the square.

EFFECT: material is saved, the creation of each board row of four squares allows you to save the possibility of placing four draughtsmen on one line, but at the same time excluding the free four squares as unnecessary, not used during the draughts game, it is also possible to save the movement of the draughtsmen from the field to the field at an angle to the original row, as stipulated by the rules of the draughts game, and prepare them for a compact connection in one piece - a board for playing draughts.

1 dwg