Checkerboard particularly for simultaneous use by more than two players;for chess, draughts, and the like games.

摘要

The checkerboard comprises a regular octagon (20) divided into four identical irregular pentagonal zones (20a-d). The irregular pentagonal zones (20a-d) being bisected and the regular octagon (20) being resultantly divided into eight identical irregular quadrilaterals (41-48). Each irregular quadrilateral (41-48) is then divided into sixteen small quadrilaterals delimited by its perimeter. Two contiguous irregular quadrilaterals comprising thirty-two small quadrilaterals, similarly to one half of the traditional chessboard.