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Home * Engines * Ches

a chess program developed by a team of researchers and students affiliated with the University of California, Berkeley, David Barton, Craig Barnes, and Peter Rowe. Ches played the ACM 1973 in Atlanta, Georgia and ran on a HP 3000 of the university [1].

Selected Games


ACM 1973, round 1, CHAOS - Ches [2]

[Event "ACM 1973"]
[Site "Atlanta USA"]
[Date "1973.08.26"]
[Round "1"]
[White "CHAOS"]
[Black "Ches"]
[Result "1-0"]

1.d4 d5 2.c4 e6 3.Nc3 dxc4 4.e4 Nc6 5.Nf3 Na5 6.Be3 b6 7.Ne5 f6 8.Qh5+ Ke7
9.Qf7+ 1-0


ACM 1973, round 3, Belle - Ches

[Event "ACM 1973"]
[Site "Atlanta USA"]
[Date "1973.08.27"]
[Round "3"]
[White "Belle"]
[Black "Ches"]
[Result "1/2-1/2"]

1.e4 e5 2.Nc3 Qh4 3.Nf3 Qh5 4.g4 Qxg4 5.Nxe5 Qxd1+ 6.Nxd1 Nf6 7.Bc4 d5
8.Bxd5 Nxd5 9.exd5 Bc5 10.O-O Bh3 11.Re1 Na6 12.Ng6+ Kd7 13.Nxh8 Nb4
14.Nxf7 Nxc2 15.b4 Bxb4 16.Re3 Nxe3 17.Nxe3 Rf8 18.Ng5 Bf5 19.a3 Bd6
20.Bb2 h6 21.Bxg7 Re8 22.Nxf5 Re1+ 23.Rxe1 hxg5 24.Nxd6 Kxd6 25.Re5 g4
26.d4 c6 27.Bf8+ Kd7 28.Re7+ Kd6 29.Re5+ Kd7 30.Re7+ Kd6 31.Re5+ 1/2-1/2


  1. Monroe Newborn (1975). Computer Chess. Academic Press, New York, N.Y. Chapter IX. The Fourth United States Computer Chess Championship
  2. PGN Download NACCC from Computerschaak/Downloads/Games hosted by CSVN

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