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a [[Dedicated Chess Computers|dedicated chess computer]] released in 1979 by [https://en.wikipedia.org/wiki/Hong_Kong Hong Kong] based manufacturer '''Cassia''' by [[Eric White]] and [[Ken Cohen]], forerunner of [[Newcrest Technology|White and Allcock]], the computer also shipped as ''Toytronic Chess Electronics'' <ref>[http://www.schach-computer.info/wiki/index.php/Toytronic_Chess_Electronics Toytronic Chess Electronics] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref> <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/10-1979%20%5BA-5970%5D%20Toytronic%20-%20Chess%20Electronics.pdf Toytronic - Chess Electronics], pdf hosted by [[Hein Veldhuis]] (Dutch)</ref>. Cassia Chess Mate and relatives, such as the '''CXG Computachess I''' in 1981 were [[Clones:Category:Clone|clones]] of [[Ron Nelson|Ron Nelson's]] [[Chess Challenger|Fidelity Chess Challenger 10]] <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/09-1979%20%5BA-3976%5D%20Cassia%20-%20Chess%20Mate.pdf Cassia - Chess Mate], pdf hosted by [[Hein Veldhuis]] (Dutch)</ref> <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=6768&start=122 Re: Ron Nelson] by [[Ron Nelson|ChessChallenger]], [[Computer Chess Forums|Hiarcs Forum]], December 24, 2015</ref>. While the ''CXG Computachess I'' was stopped from shipping into the US, it seems the ''Chess Mate'' was further shipped to Europe <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/09-1981%20%5BB-1801%5D%20CXG%20-%20Computachess%20%28black%20and%20silver%20edition%29.pdf CXG - Computachess (black and silver edition)], pdf hosted by [[Hein Veldhuis]] (Dutch)</ref>, according to [[Ron Nelson]], with an operating manual logo looking like the CXG Computachess one <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=6768&start=205 Re: Ron Nelson Chess Challenger 10] by [[Ron Nelson|ChessChallenger]], [[Computer Chess Forums|Hiarcs Forum]], January 24, 2016</ref>.