Schach+(US)

an early chess program by Rolf C. Smith and Franklin D. Ceruti, competing the first three ACM North American Computer Chess Championships, the ACM 1970, ACM 1971 and the ACM 1972. Schach was originally developed in 1968 as part of the requirements for the degree of Master of Computer Science at [|Texas A&M University] under advisor Dan D. Drew, was written in Fortran and had an implementation of a SOMA like algorithm instead of quiescence search. Static exchange evaluation was further used at interior nodes for move ordering and pruning aka reducing the width of a Shannon Type B program. || toc =Description= Rolf C. Smith's description from the ACM 1971 panel session :
 * Home * Engines * Schach**
 * [[image:KnightsTemplarPlayingChess1283.jpg link="http://en.wikipedia.org/wiki/File:KnightsTemplarPlayingChess1283.jpg"]] ||~ || **Schach**,
 * Knights Templar playing Chess ||~ ||^ ||





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=Selected Games= ACM 1972, round 2, Leverett CP - Schach code [Event "ACM 1972"] [Site "Boston USA"] [Date "1972.08.14"] [Round "2"] [White "Leverett CP"] [Black "Schach"] [Result "0-1"]

1.Nc3 d5 2.e4 dxe4 3.Nxe4 e5 4.Qh5 Nc6 5.Nf3 Nf6 6.Nxf6+ gxf6 7.Bc4 Qd7 8.Qxf7+ Qxf7 9.Bxf7+ Kxf7 10.O-O Rg8 11.d3 Bc5 12.Be3 Nd4 13.Nxd4 exd4 14.Bf4 Bd6 15.Bg3 Be6 16.a4 Rg5 17.h4 Rg4 18.b4 Bxg3 19.fxg3 Rxg3 20.Rf4 Rd8 0-1 code

=Continuation= // see main article Schach 2//

According to the [|Chessgames.com] description, a 1970 version of Schach was extended in 1978 to become Schach 2, ported to Algol by Matthias Engelbach, at that time [|German military] officer and student at [|Bundeswehr University Munich]. In the early 90s, along with co-author Thomas Kreitmair, Schach 3.0 was a complete re-write in x86 (486) assembly language for PCs, to become one of the fastest programs of its time.

=See also=
 * Schach 2 by Matthias Engelbach, 3.0 with Thomas Kreitmair
 * Schach MV 5,6 by Helmut Richter

=External Links=
 * [|Schach from Wikipedia]
 * [|Schach from Wikipedia.de] (German) = Chess
 * [|Schach (Zeitschrift) from Wikipedia.de] (German [|Chess periodical])

=References= =What links here?= include page="Schach (US)" component="backlinks" limit="40"
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