board in the shape of a circular crown, which can be used in games of the board (checkers, chess, go, in place of the board

摘要

the board is in the shape of a circular crown is the protection on the chessboard is cylindrical, and the two sides of boundaries in place of four of the checkerboard classic.it allows, as the board classic, to embrace all the houses with one glance, and also allows the play of the board cylindrical.the board has the defect of a deformation or houses and a rapid narrowing towards the centre.that is greater the less is the ratio of the number of houses located in the beam and arranged along the circumference.the technical problem to solve is to reduce the defect to make feasible the play of the board.and this can be achieved with a ratio between the houses, not much less than one in four.