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'''Excalibur Grandmaster''', (Excalibur Karpov Grandmaster, Excalibur Grandmaster Platinum)<br/>
a [[Dedicated Chess Computers|dedicated chess computer]] by [[Excalibur Electronics]], released in 1997 <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=7591&start=8 Chess Products Ron Nelson designed/programmed] by [[Ron Nelson|ChessChallenger]], [[Computer Chess Forums|Hiarcs Forum]], January 11, 2016</ref>.
The computer has a [[H8|H8/3214]] controller running at 12 MHz with 32 kibi KiB [[Memory#ROM|ROM]] and 1 kibi KiB [[Memory#RAM|RAM]] <ref>[https://www.schach-computer.info/wiki/index.php/Excalibur_Grandmaster Excalibur Grandmaster] - [https://www.schach-computer.info/wiki/index.php?title=Hauptseite_En Schachcomputer.info Wiki]</ref>,
and features a large [[Sensory Board|sensory board]] along with two [https://en.wikipedia.org/wiki/Liquid-crystal_display LCDs], and a control button panel.
The H8 program was written by [[Ron Nelson]] with support and [[Opening Book|opening book]] by chess consultant [[Larry Kaufman]] <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=6768&start=78 Excalibur Electronics] by [[Ron Nelson|ChessChallenger]], [[Computer Chess Forums|Hiarcs Forum]], December 22, 2015</ref> <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=6768&start=112 Re: Ron Nelson] by [[Ron Nelson|ChessChallenger]], [[Computer Chess Forums|Hiarcs Forum]], December 23, 2015</ref>.
