Excel

a family of the dedicated Chess Challenger series by Fidelity Electronics, produced and distributed from 1987 to 1989. The Excel had a 16-bit Sargon III based 68000 program by Dan and Kathe Spracklen, and was the first dedicated unit featuring a transposition table apparently with BCH hashing of < 16 KiB, 128 KiB for the **Mach II**, 64 KiB for the **Mach III**, 512 KiB for the 68020 **Mach IV**. Due to TTs, the Excel could solve the Lasker-Reichhelm Position in under a minute, but had some issues with color flipped positions, f. i. in KBNK. The Mach III and its successor, the 68020 32-bit Mach IV were also shipped in other housings, such as the Elite Avant Garde V2 and Avant Garde V6, and the later Fidelity **Designer** models. toc =Master Rating= The 68000 Mach III was rated 2265 by the [|United States Chess Federation`s] Computer Rating Agency, an independent certifying body. The computer obtained that [|Master rating] by competing 48 tournament games against rated players. The German Schach-computer Info Wiki mentions an (old) SSDF rating of 1993. =See also=
 * Home * Engines * Excel**
 * [[image:Excel68000.jpg with="260" link="http://www.flickr.com/photos/10261668@N05/859027346/in/set-72157600922170604"]] ||~ || **Excel**, (Fidelity Excel, 68000 Mach I, 68000 Mach II, 68000 Mach III, 68020 Mach IV)
 * Excel 68000 ||~ ||^ ||
 * Excel 68000 ||~ ||^ ||
 * [[image:mach3master.jpg width="260" link="http://www.flickr.com/photos/10261668@N05/859084808/in/set-72157600922170604"]] ||
 * Mach III Rating Certificate ||
 * Elite
 * Fidelity
 * Fidelity Electronics
 * Par Excellence

=Selected Publications=
 * Thorsten Czub (**1989**). //[|Er weiß, was er weiß - Der Mach III Master glänzt mit Wissen und Geschwindigkeit]//. Computerschach und Spiele Heft 2 April-Mai 1989, hosted by [|Schachcomputer.info Wiki] (German)

=Forum Posts=
 * [|Zarkov vs. Mach III (10 games)] by Stuart Cracraft, rgc, November 05, 1989 » Zarkov
 * [|Fidelity Excel models] by Alain Zanchetta, CCC, May 18, 2004
 * [|Fidelity Excel Mach III design] by Alain Zanchetta, CCC, June 22, 2004
 * [|Inside Fidelity Excel Mach III] by Alain Zanchetta, CCC, September 06, 2004
 * [|Excel 68000 question] by Matthew Hull, CCC, February 07, 2005
 * [|Rare Fidelity Excel Mach II on ebay] by Larry, Hiarcs Forum, September 09, 2008
 * [|Difference between Fidelity Excel Mach3 versions...] by Larry, Hiarcs Forum, June 24, 2009
 * [|The Fidelity Excel Mach II & The 1987 World Open] by Cyberchess, Hiarcs Forum, February 17, 2014

=External Links=

Chess Computer

 * [|Chess Computer | Collectors Magazine | Fidelity | Excel 68000 | Mach III Chess Challenger]
 * [|Excel 68000 (Fidelity)] from [|Electronicchess]
 * [|Excel Mach III (Fidelity)] from [|Electronicchess]
 * [|Fidelity Excel 68000] from [|Schachcomputer.info Wiki] (German)
 * [|Fidelity Excel 68000 Mach II] from [|Schachcomputer.info Wiki] (German)
 * [|Fidelity Excel Mach III] from [|Schachcomputer.info Wiki] (German)
 * [|Fidelity Excel Mach IV] from [|Schachcomputer.info Wiki] (German)
 * [|Oldie-Artikel 1] by Thorsten Czub (German)

Misc
> [|Microsoft Excel from Wikipedia]
 * [|Excel (disambiguation) from Wikipedia]
 * [|Excellent (disambiguation) from Wikipedia]
 * [|Excelsior (disambiguation) from Wikipedia]
 * [|Mach (disambiguation) from Wikipedia]

=References= =What links here?= include component="backlinks" page="Excel" limit="40"
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