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The First United States Open Computer Chess Championship was held in Mobile, Alabama, June 21-23, 1985. The rules allowed open hardware and multiple "team" entries.

Final Standing

# Program CC [1] 1 2 3 4 5 6 P
1 Fidelity Elite XC US 17b½ 15w1 6b1 9w1 2w1 3b1
2 Bebe US 12w1 4b1 9b1 3w½ 1b0 5b1
3 Novag Y US 18w1 14b1 5w½ 2b½ 7w1 1w0 4
4 Novag Quattro X US 10w1 2w0 11b1 7b0 17w1 8w1 4
5 Belle US 7b½ 17w1 3b½ 8w½ 6b1 2w0
6 Fidelity Avant Garde US 15b½ 7w1 1w0 10b1 5w0 12b1
7 Mephisto Modular Mephisto III (?) DE 5w½ 6b0 17b1 4w1 3b0 9w1
8 Fidelity Elite XA US 9b0 16w1 14w1 5b½ 12w1 4b0
9 Novag Super Con X US 8w1 11b1 2w0 1b0 14w1 7b0 3
10 Turbostar Comp X US 4b0 12w½ 13b½ 6w0 16b1 14w1 3
11 Mephisto Modular S Mephisto III-S DE 16b1 9w0 4w0 14b0 18w1 13w1 3
12 Turbo Kasparov US 2b0 10b½ 15w1 13w1 8b0 6w0
13 Fidelity PC X US 14w0 18b1 10w½ 12b0 15w1 11b0
14 Novag X US 13b1 3w0 8b0 11w1 9b0 10w0 2
15 Mephisto Exclusive S Mephisto III-S DE 6w½ 1b0 12b0 16w½ 13b0 18w1 2
16 Turbo 640 US 11w0 8b0 18w½ 15b½ 10w0 17b1 2
17 MyChess II X US 1w½ 5b0 7w0 18b1 4b0 16w0
18 B11 (Baby Belle) US 3b0 13w0 16b½ 17w0 11b0 15b0 ½



Ken Thompson seems to be trying to psych out Tony Scherzer in the battle of the titans
Bebe vs Belle. Both early favorites, now just playing for pride after Elite XC clinched 1st place [2]

Team Order

The tournament was structured in such a way that manufacturers had to play their own machines against each other in some rounds. The rules clearly stated that the operators of each computer had the right to resign or offer a draw on behalf of their machines. Apparently the temptation to take advantage of the rules was too much for Fidelity to overcome [3] [4].

[Event "1st U.S. Open Computer Chess Championship"]
[Site "Mobile"]
[Date "1985.06.23"]
[Round "3"]
[White "Fidelity Avant Garde"]
[Black "Fidelity Elite XC"]
[Result "0-1"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d4 e4 5.Nd2 Nxd4 6.Ndxe4 Nxe4 7.Qxd4 Nxc3 
8.Qxc3 d5 9.e3 Be6 10.Qb3 Qd6 11.Qxb7 Qb4 12.Qxb4 Bxb4 13.Bd2 Bxd2 14.Kxd2 
dxc4 15.Kc3 Rb8 16.Rb1 Bf5 17.e4 Be6 18.Bxc4 Ke7 19.e5 Rhd8 20.b3 Bf5 
21.Rbd1 f6 22.Rxd8 Rxd8 23.Re1 g5 24.Re3 Bc8 25.g3 g4 26.Be2 Rf8 27.exf6
Kxf6 28.f4 gxf3 29.Rxf3 Ke7 30.Rxf8 Kxf8 31.Kd4 Kg7 32.Ke5 Bb7 33.g4 a5 
34.Bd3 Bf3 35.g5 Bh5 36.h4 Bg6 {resigned} 0-1


Results and Games by Ken Thompson

Forum Posts


  1. Country of Author
  2. Editors (1985). 1st U.S. Open Computer Chess Championship. Computer Chess Reports 1985, Vol. 3, No. 2
  3. Larry Kaufman (1985). Ethics in Computer Chess Tournaments: A Case in Point. Computer Chess Reports Fall/Winter 1986 Edition, pp. 126-129
  4. Re: Who was Sid Samole? by Bruce Moreland, CCC, November 16, 2000
  5. Re: Who was Sid Samole? by Bruce Moreland, CCC, November 16, 2000
  6. Editors (1985). The US Open Computer-Chess Championship. ICCA Journal, Vol. 8, No. 3

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