Schak-H

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an early chess program by Hans, Henk and Bert van der Liet. Schak-123 aka Schak-H ran on a self built system around the [|Signetics 2650] [|microprocessor], and was entirely programmed in [|machine language], the [|opcode] entered via a bank of [|toggle-switches] for address and data input. In 1978, Schak123 played one of the first matches between Dutch chess programs via telephone, and lost from IGM by Peter van Diepen. In 1978, it also played some sparring games versus Joost Buijs' early Nightmare. Schak-H played the first official Dutch Computer Chess Championship, the DOCCC 1981, and the Group B of the DOCCC 1985.
 * Schak-H**, (Schak-123, Schak123)

=Photos=
 * [[image:HenkvanderLietSchak-H.jpg width="560"]] ||
 * Schak-H and Henk van der Liet (?) ||

=Selected Games= DOCCC 1981, PK80 - Schak-H code [Event "DCCC 1981"] [Site "Utrecht NED"] [Date "1981.09.25"] [Round "1-3"] [White "PK80"] [Black "Schak-H"] [Result "0-1"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qe5+ 4.Nce2 f6 5.d4 Qd6 6.Bf4 e5 7.Be3 Qb4+ 8.c3 Qxb2 9.Qa4+ Nc6 10.Rd1 exd4 11.Rxd4 Be6 12.Nf3 Qb1+ 13.Nc1 Nh6 14.Bc4 Bxc4 15.Qxc4 Nxd4 16.Qa4+ Nc6 17.Qd1 Rd8 18.Qa4 Nf5 19.O-O Bd6 20.Qc4 Ke7 21.Rd1 Bxh2+ 22.Kxh2 Rxd1 23.Bc5+ Kd7 24.Qf7+ Nce7 25.Ne2 Rh1# 0-1 code =See also=
 * SCHK-Y

=Publications=
 * Henk van der Liet (**1982**). //Schak-H//. in Peter van Diepen (ed.) (**1982**). //Toernooibulletin van het Nederlands kampioenschap computerschaak 1981. De Deelnemers//. [|pdf] hosted by Hein Veldhuis » DOCCC 1981

=External Links=
 * [|Prehistorie van het Nederlandse Computerschaak] (Dutch)
 * [|Eerste Nederlands Kampioenschappen Computerschaken] (Dutch)

=References= =What links here?= include page="Schak-H" component="backlinks" limit="20"
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