发明名称 Chess instruction apparatus.
摘要 <p>A chess instruction apparatus comprises a board having a playing area comprising an array of playing squares, and a plurality of playing pieces (15) of opposing colours. Each playing square contains a spacial configuration of switches (18), the configuration being the same in each square, and each playing piece (15) provides a set of switch actuating members (19) positioned to engage selected ones of the switches (18) when the playing piece (15) is placed on the square (11), the switch actuating members (19) being arranged in a coded configuration corresponding uniquely to the colour and function of the playing piece (15). A plurality of display circuits are provided to display the pattern of control, each display circuit being associated with a respective playing square and being operable to denote control of the square by a playing piece (15).</p>
申请公布号 EP0063926(A2) 申请公布日期 1982.11.03
申请号 EP19820302067 申请日期 1982.04.22
申请人 CARDINAL, DAVID VICTOR 发明人 CARDINAL, DAVID VICTOR
分类号 G09B19/22;(IPC1-7):09B19/22 主分类号 G09B19/22
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