Click on the drawings to see the pdf file of the full Patent documents.
Patent Application filed 19th June 1979 Inventors : Darrell Tepoorten and Steven Hechtman
SciSys Chess Champion Mark VI Sensor Board - Piece Recognition Prototype
Patent Application filed 19th July 1982 Inventors: Philip Blenkinsop, Tony Chung Chi-Ming, Peter Lee and Rupert Goodings for SciSys-W Ltd.
Improved LCD Chessboard
Patent Application filed 14th March 1989 Inventors: Thomas Leung, Eric White and David Levy for Newcrest Technology Limited (CXG)
Thin Membrane Sensor Board
Patent Application filed 20th March 1987 Inventors: Peter Ka-Tai Sun, Wilson Wong and Eric Winkler for SciSys-W Ltd
It is not known whether this technology actually made it into a marketed product.
Saitek Piece Recognition Board
Patent Application filed 25th October 1990 Inventors: Paul Ryan for Saitek Ltd.
Mephisto Chess Teaching Computer
Patent Application filed 21st November 1990 Inventor: Manfred Hegener for Hegener + Glaser AG
Chess Game Devices leading up to Chess Computers
Rippenbein Game Device
Patent Application filed 17th August 1945 Inventor: Albert P Rippenbein
This device is an intricate use of a film on rollers making electrical contact to provide the player with feedback in following an opening variation or famous game. I will let you figure out how it works !!
Patent Application filed 21st April 1966 Inventors: Donald and Fred Worden and others.
A more practical version of Rippenbein’s device using punched card, photoelectric cells and illumination of each square. Intended to aid learning chess and following Master games.
Patent Application filed 22nd July 1968 Inventor: Frederick Way.
Another similar example using punched card and illuminating the chess pieces themselves.
Electrical Chess Game
Patent Application filed 29th October 1975 Inventor: Enrique Mustelier
An electronic chessboard for playing chess without pieces.
Electronic Chess Game
Patent Application filed 15th November 1976 Inventor: David Bathurst
Another electronic chessboard. Again looking more like a chess computer, but without a chess playing program.
Pocket Problem Solver
Patent Application filed 9th May 1977 Inventor: Bruce Beach
A pocket-sized portable electronic device for playing chess problems.
Other Ideas including the Crazy
Coin Slot Arcade Chess Computer
Patent Application filed 4th April 1981 Inventor: Erwin Piotrowski
Not crazy but there was probably limited demand for playing chess in arcades even in 1981. .
Water Squirting Gameboard
Patent Application filed 15th March 1991 Inventor: Michael J Jones
Envisaged by the inventor as a “fun” addition to a game of checkers (draughts) but applicable to chess also. The idea is that a pump squirts water at one of the players when they move a particular piece to a certain position on the board.
If that isn’t crazy I do not know what is.
“...Anand exchanges queens and reaches for his towel yet again !”