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Robot computer chess game

  • US 4,398,720 A
  • Filed: 01/05/1981
  • Issued: 08/16/1983
  • Est. Priority Date: 01/05/1981
  • Status: Expired due to Fees
First Claim
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1. In a computer controlled chess game having a housing member, a chess board, chess pieces, a computer processing circuit, a memory unit, a robot arm movably mounted adjacent the chess board, and means on the robot arm for grasping and releasing a chess piece, the improvement comprising:

  • a multiple layer switch member positioned beneath each chess square to indicate the presence or absence of a chess piece;

    a magnetic member for each chess piece;

    a plurality of cavities beneath said multiple layer switch member and the chess board corresponding to each chess square and having a magnetic member movably contained therein, the cross-sectional area of said cavity configured to at least conform to the cross-sectional area of said magnetic member of the chess piece wherein placement of said chess piece actuates said switch member and spatially positions said chess piece at a predetermined location on each chess square to ensure alignment for coaction with the grasping and releasing means.

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