Board for indoor game marked with tangential circles - has positions for playing pieces marked at centre and at tangential points

摘要

The board is for an indoor game of the type in which two players must eliminate their opponents pieces by taking them. The board is square or rectangular and has a network of circles of the same diameter whose centres form a square. The edges of the circles are shown by a line or colour (4,5) and each circle is tangential to its neighbours. Positions for the pieces are marked at all the tangential points, at the centres of each circle (7) and at the points where the circles touch the edge of the board (8).