ACM 1977

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Olympic Hotel [1]

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 [2] .

Final Standing


# Name CC 1 2 3 4 P SOS SoDOS
1 Chess 4.6 US 8w1 4b1 3w1 2b½ 10½
2 Duchess US 5b1 6w1 7b1 1w½
3 CHAOS US 10w1 9b1 1b0 5w1 3 4
4 Xenarbor US 11w1 1w0 6b1 8b½ 8
5 Blitz 5 US 2w0 8b1 9w1 3b0 2 9
6 Black Knight US 12w1 2b0 4w0 11b1 2 8 2
7 Ostrich CA 9b0 12w1 2w0 10b1 2 2
8 Chute 1.2 CA 1b0 5w0 10b1 4w½ 9
9 8080 Chess US 7w1 3w0 5b0 12b0 1 8 2
10 Tyro US 3b0 11b1 8w0 7w0 1 1
11 Wita CA 4b0 10w0 12b1 6w0 1 1
12 Brute Force CA 6b0 7b0 11w0 9w1 1 6 1



Program CC Authors Hardware
8080 Chess US Robert Arnstein 8080 Processor Technology
Black Knight US Fred Prouse, Kenn Sogge,
Gary Maltzen, Lonny Lebahn
Blitz 5 US Robert Hyatt XDS Sigma 9
Brute Force CA Louis Kessler IBM 370/168
CHAOS US Mike Alexander, Victor Berman, Ira Ruben,
Fred Swartz, William Toikka, Joe Winograd
Amdahl 470v/6
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

Selected Games

Round 1

Round 1, Xenarbor - Wita

[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+

Round 4

Round 4, Duchess - Chess 4.6

[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

Game and short analyze on : [1]

Tournament Director


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