ACM 1989

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ACM's Twentieth North American Computer Chess Championship (NACCC), Reno, Nevada, USA, November 12-15, 1989. The tournament was held in conjunction with the ACM/IEEE Supercomputing Conference in the Reno Convention Center. For the final winner, see the controversial discussion between Hans Berliner and Feng-hsiung Hsu at rec.games.chess.

=Final Standing= .
 * CC Country Codes
 * SOS: Sum of Opponent Scores
 * SoDOS: Sum of Defeated Opponent Scores

=Participants=
 * CC Country Codes

=Photos & Games=

Deep Preparation
In round 3, HiTech versus Deep Thought, Hans Berliner had prepared an opening, following a game of Kasparov versus Deep Thought played shortly before : [Event "Kasparov vs Deep Thought 1989"] [Site "New York"] [Date "1989.10.22"] [Round "2"] [Result "1-0"] [White "Garry Kasparov"] [Black "Deep Thought"]

1.d4 d5 2.c4 dxc4 3.e4 Nc6 4.Nf3 Bg4 5.d5 Ne5 6.Nc3 c6 7.Bf4 Ng6 8.Be3 cxd5 9.exd5 Ne5 10.Qd4 Nxf3+ 11.gxf3 Bxf3 12.Bxc4 Qd6 13.Nb5 Qf6 14.Qc5 Qb6 15.Qa3 e6 16.Nc7+ Qxc7 17.Bb5+ Qc6 18.Bxc6+ bxc6 19.Bc5 Bxc5 20.Qxf3 Bb4+ 21.Ke2 cxd5 22.Qg4 Be7 23.Rhc1 Kf8 24.Rc7 Bd6 25.Rb7 Nf6 26.Qa4 a5 27.Rc1 h6 28.Rc6 Ne8 29.b4 Bxh2 30.bxa5 Kg8 31.Qb4 Bd6 32.Rxd6 Nxd6 33.Rb8+ Rxb8 34.Qxb8+ Kh7 35.Qxd6 Rc8 36.a4 Rc4 37.Qd7 1-0 In the actual game, Deep Thought improved with 6... Nf6, but later played the weak 13... f6. However, instead of 14. Be6!, HiTech, made a terrible mistake, it starts to use its own head [Event "ACM 1989"] [Site "Reno USA"] [Date "1989.11.13"] [Round "3"] [White "HiTech"] [Black "Deep Thought"] [Result "0-1"]
 * View this game on Lichess.org

1.d4 d5 2.c4 dxc4 3.e4 Nc6 4.Nf3 Bg4 5.d5 Ne5 6.Nc3 Nf6 7.Bf4 Nfd7 8.Qa4 Nxf3+ 9.gxf3 Bxf3 10.Rg1 a6 11.Qxc4 Rc8 12.Rg3 Bh5 13.Bh3 f6? 14.Qb4? g5 15.Be3 b5 16.Qd4? c5 17.dxc6 Rxc6 18.Rxg5 fxg5 19.Qxh8 Nf6 20.Bf1 Qa5 21.Bd4 Qb4 22.Bxf6 Rxf6 23.Rd1 Bxd1 24.a3 Qxb2 25.Nxd1 Qxa3 26.Qxh7 Qa5+ 27.Ke2 Rd6 28.Qh5+ Kd8 29.Qxg5 Bh6 30.Qg8+ Kc7 0-1
 * View this game on Lichess.org

Round 5 Surprise
Hans Berliner (rear), Murray Campbell and Feng-hsiung Hsu, ACM '89 [Event "ACM 1989"] [Site "Reno USA"] [Date "1989.11.14"] [Round "5"] [White "Mephisto X"] [Black "Deep Thought"] [Result "1-0"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4 5.Bxc4 e6 6.h3 Bh5 7.Nc3 Nbd7 8.g4 Bg6 9.Nh4 Be4 10.Nxe4 Nxe4 11.Nf3 Nd6 12.Bb3 Qe7 13.Bd2 h5 14.Rg1 hxg4 15.hxg4 O-O-O 16.Ba5 b6 17.Bb4 a5 18.Bxd6 Qxd6 19.Qc2 Be7 20.O-O-O Rh3 21.Nd2 c6 22.Rh1 Rdh8 23.Rxh3 Rxh3 24.Ne4 Qc7 25.Kb1 g5 26.Rc1 Kb7 27.Ba4 Nb8 28.Nd2 Qd7 29.Bb3 Na6 30.Qe4 Nb4 31.a3 Nd5 32.Qg2 Rh8 33.Ne4 f6 34.Qg3 Rg8 35.Rh1 f5 36.gxf5 exf5 37.Qh3 Rf8 38.Nd2 Bf6 39.Qh7 Rf7 40.Qh6 Qe6 41.Qg6 Rg7 42.Rh7 Rxh7 43.Qxh7+ Be7 44.Kc1 Kc7 45.Nf3 Kd8 46.Ne5 g4 47.Qh8+ Kc7 48.Kd2 Kb7 49.Nxc6 Qxc6 50.Qe5 Nc7 51.Qxe7 Qg2 52.Qh4 f4 53.exf4 Qe4 54.Qxg4 Qxd4+ 55.Kc1 Qxf2 56.Qf5 Qf3 57.Kc2 Kc6 58.Qe5 Nd5 59.Qe6+ Kc5 60.Bxd5 Qxd5 61.Qxd5+ Kxd5 62.Kd3 a4 63.Kc3 Kc5 64.f5 1-0
 * View this game on Lichess.org

Richard Lang playing Mephisto X aka Mephisto Portorose at ACM '89

8/2k1b2Q/1pp1q3/p2n1pp1/3P4/PB2P3/1P1N1P2/2K5 w - - 3 45

=Tournament Director=
 * David Levy

=See also=
 * WCCC 1989
 * Kasparov versus Deep Thought 1989

=Publications=
 * The Twentieth ACM North American Computer Chess Championship from The Computer History Museum, pdf
 * David Levy (1989). The 20th North American Computer-Chess Championship. ICCA Journal, Vol. 12, No. 4
 * Ken Thompson (1989). Results and Games. ICCA Journal, Vol. 12, No. 4
 * Larry Evans (1989). The Key Game. ICCA Journal, Vol. 12, No. 4
 * Ben Mittman (1989). Deep Preparation. ICCA Journal, Vol. 12, No. 4


 * Monty Newborn and Danny Kopec (1990). The Twentieth ACM North American Computer Chess Championship, in The 21st Annual ACM North American Computer Chess Championship from The Computer History Museum, pdf

=Forum Posts=
 * Aegon Tournament 1990; Hitech best overall by Hans Berliner, rgc, May 25, 1990 » Aegon 1990
 * Re: Which Mephisto Version Beat Deep Thought? by Steve B, CCC, January 04, 2005 » Mephisto X

=External Links=
 * ACM 1989 CSVN site

=References=

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