ACM+1977


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 * [[image:320px-Seattle_-_Olympic_Hotel_pano.jpg link="http://commons.wikimedia.org/wiki/File:Seattle_-_Olympic_Hotel_pano.jpg"]] ||~  || The ACM's **Eighth North American Computer Chess Championship** (NACCC) was held on October 15 to 17, 1977 at the [|Olympic Hotel] in [|Seattle], [|Washington], [|United States].

In the evening after Round 3, Tournament Director David Levy held a simultaneous exhibition against all twelve programs, winning 10, drawing one, and losing to Chess 4.6. The next day, after the tournament was over, he played two games of speed chess against Chess 4.6 and Duchess and lost both. || toc =Final Standing=
 * Olympic Hotel ||~  ||^   ||
 * ~ # ||~ Name ||~ CC ||~ 1 ||~ 2 ||~ 3 ||~ 4 ||~ P ||~ SOS ||~ SoDOS ||
 * ~ 1 ||< Chess 4.6 ||~ US ||= 8w1 ||= 4b1 ||= 3w1 ||= 2b½ ||~ 3½ ||= 10½ ||= 8¾ ||
 * ~ 2 ||< Duchess ||~ US ||= 5b1 ||= 6w1 ||= 7b1 ||= 1w½ ||~ 3½ ||= 9½ ||= 7¾ ||
 * ~ 3 ||< CHAOS ||~ US ||= 10w1 ||= 9b1 ||= 1b0 ||= 5w1 ||~ 3 ||= 7½ ||= 4 ||
 * ~ 4 ||< Xenarbor ||~ US ||= 11w1 ||= 1w0 ||= 6b1 ||= 8b½ ||~ 2½ ||= 8 ||= 3¾ ||
 * ~ 5 ||< Blitz 5 ||~ US ||= 2w0 ||= 8b1 ||= 9w1 ||= 3b0 ||~ 2 ||= 9 ||= 2½ ||
 * ~ 6 ||< Black Knight ||~ US ||= 12w1 ||= 2b0 ||= 4w0 ||= 11b1 ||~ 2 ||= 8 ||= 2 ||
 * ~ 7 ||< Ostrich ||~ CA ||= 9b0 ||= 12w1 ||= 2w0 ||= 10b1 ||~ 2 ||= 6½ ||= 2 ||
 * ~ 8 ||< Chute 1.2 ||~ CA ||= 1b0 ||= 5w0 ||= 10b1 ||= 4w½ ||~ 1½ ||= 9 ||= 2¼ ||
 * ~ 9 ||< 8080 Chess ||~ US ||= 7w1 ||= 3w0 ||= 5b0 ||= 12b0 ||~ 1 ||= 8 ||= 2 ||
 * ~ 10 ||< Tyro ||~ US ||= 3b0 ||= 11b1 ||= 8w0 ||= 7w0 ||~ 1 ||= 7½ ||= 1 ||
 * ~ 11 ||< Wita ||~ CA ||= 4b0 ||= 10w0 ||= 12b1 ||= 6w0 ||~ 1 ||= 6½ ||= 1 ||
 * ~ 12 ||< Brute Force ||~ CA ||= 6b0 ||= 7b0 ||= 11w0 ||= 9w1 ||~ 1 ||= 6 ||= 1 ||
 * [|CC Country Codes]
 * SOS: [|Sum of Opponent Scores]
 * SoDOS: [|Sum of Defeated Opponent Scores]

=Participants= Gary Maltzen, Lonny Lebahn || UNIVAC 1110 || Fred Swartz, William Toikka, Joe Winograd || Amdahl 470v/6 ||
 * ~ Program ||~ CC ||~ Authors ||~ Hardware ||
 * < 8080 Chess ||~ US || Robert Arnstein || 8080 [|Processor Technology] ||
 * < Black Knight ||~ US || Fred Prouse, Kenn Sogge,
 * < Blitz 5 ||~ US || Robert Hyatt || [|XDS Sigma 9] ||
 * < Brute Force ||~ CA || Louis Kessler || IBM 370/168 ||
 * < CHAOS ||~ US || Mike Alexander, Victor Berman, Ira Ruben,
 * < Chess 4.6 ||~ US || David Slate, Larry Atkin || CDC Cyber 176 ||
 * < Chute 1.2 ||~ CA || Michael Valenti, Zvonko Vranesic| || Amdahl 470v/6 ||
 * < Duchess ||~ US || Eric Jensen, Tom Truscott, Bruce Wright || IBM 370/165 ||
 * < Ostrich ||~ CA || Monty Newborn || Nova 3 ||
 * < Tyro ||~ US || Albert Zobrist, Frederic Roy Carlson || PDP-10 KL ||
 * < Wita ||~ CA || Tony Marsland || Amdahl 470v/6 ||
 * < Xenarbor ||~ US || Donald Miller || IBM 370/158 ||
 * [|CC Country Codes]

=Selected Games=

Round 1
Round 1, Xenarbor - Wita code [Event "ACM 1977"] [Site "Seattle USA"] [Date "1977.10.15"] [Round "1"] [White "Xenarbor"] [Black "Wita"] [Result "1-0"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 e6 5.Nf3 d6 6.g3 Nc6 7.Bg2 h6 8.O-O O-O 9.d5 exd5 10.cxd5 Nb8 11.Be3 Re8 12.Qc2 Qe7 13.Rfd1 Nxe4 14.Nxe4 Qxe4 15.Qxc7 Bxb2 16.Rab1 Na6 17.Qxd6 Bg7 18.Nd4 Be5 19.Bxe4 Bxd6 20.Bg2 Bf8 21.Rdc1 Bc5 22.a4 f6 23.a5 Rb8 24.Rxc5 Nxc5 25.Nc6 Bf5 26.Rb5 a6 27.Rb6 bxc6 28.dxc6 Rxb6 29.axb6 Re5 30.c7 h5 31.h4 a5 32.Bf1 a4 33.Bd4 a3 34.Bxe5 fxe5 35.Bc4+ Kf8 36.Kh2 Ke7 37.f3 Bc8 38.f4 exf4 39.gxf4 Nd7 40.Bb3 Bb7 41.Ba2 Kf6 42.Bb3 Kg7 43.f5 gxf5 44.Bd5 Bc8 45.b7 a2 46.bxc8=Q Nf6 47.Bxa2 f4 48.Qf5 f3 49.Qg5+ 1-0 code

Round 4
Round 4, Duchess - Chess 4.6 code [Event "ACM 1977"] [Site "Seattle USA"] [Date "1977.10.17"] [Round "4"] [White "Duchess"] [Black "Chess 4.6"] [Result "1/2-1/2"] [ECO "B21"]

1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6 7.O-O Nf6 8.Qe2 Be7 9.Rd1 e5 10.Be3 Ng4 11.Bd2 Nd4 12.Nxd4 exd4 13.Nb5 Qb6 14.Bf4 Ne5 15.Nxd4 Nxc4 16.Qxc4 Bg4 17.Qa4+ Bd7 18.Qb3 O-O 19.Qxb6 axb6 20.a3 Rfc8 21.Rac1 Rxc1 22.Rxc1 Ra4 23.Be3 Bd8 24.f3 Ra5 25.Rd1 Bf6 26.Rd2 Rc5 27.Ne2 Rc6 28.a4 Be6 29.Nd4 Rc1+ 30.Kf2 Bd7 31.Nb5 Bxb5 32.axb5 Rb1 33.Bxb6 Rxb2 34.Rxb2 Bxb2 35.Ke3 Kf8 36.Bd4 Bxd4+ 37.Kxd4 Ke8 38.Kd5 Kd7 39.b6 g6 40.f4 Ke7 41.h3 f6 42.h4 Kd7 43.g4 h6 44.h5 gxh5 45.gxh5 Ke7 46.Kd4 Ke6 47.Kc4 Ke7 48.f5 Kd8 49.Kb4 Kd7 50.Kb5 Ke8 51.Ka4 Ke7 52.Kb4 Kd8 53.Kc4 Ke8 54.Kd4 Kd7 55.Kd5 Ke7 56.Kd4 Ke8 57.Kc4 Kf7 58.Kd3 1/2-1/2 code Game and short analyze on Lichess.org : []

=Tournament Director=
 * David Levy

=Reports=
 * Editor (**1978**). //Notes from Seattle's Computer Chess Tournament//. Personal Computing, Vol. 2, No. 4, pp. 106
 * Editor (**1978**). //Seattle's Third Round//. Personal Computing, Vol. 2, No. 6, pp. 93

=External Links= include page="ACM Include" =References= =What links here?= include component="backlinks" page="ACM 1977" limit="50"
 * [|ACM 1977] CSVN site
 * [|A Memorial to BRUTE FORCE] by Louis Kessler
 * Up one level**