Kaissa (Computer) vs Chess (Computer) (1977)

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Kaissa (Computer) vs Chess (Computer)
World Computer Championship (1977), Toronto CAN
Nimzowitsch Defense: Franco-Nimzowitsch Variation (B00) · 0-1

ANALYSIS [x]

FEN COPIED

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Oct-26-04		Knight13: Since Chess 4 drawed in 1774, Chess 4 has fight back. Too hard to be beaten in the 1970's. Good game.

Jul-13-07		RandomVisitor: Botvinnik writes of this game in Computers in Chess: Solving Inexact Search Problems: "KAISSA used a computer with a speed of 3 [million] operations per second, CHESS 4.6 had a speed of 12 [million] operations per second. KAISSA could calculate variations to a depth of 5 plies; CHESS 4.6 could go to 6... In the end [game], KAISSA extended the length of a variation to nine plies and CHESS 4.6 went to twelve." <25.Ng5> was not best: 1: Kaissa (Computer) - Chess 4 (Computer), World Computer Championship 1977 click for larger view Analysis by Rybka 2.3.2a mp: (22-ply) 1. (0.43): 25.g5 Rd6 26.Re8 c6 27.Kh3 h6 28.gxh6+ Kxh6 29.Kg4 Kg7 30.b3 a6 31.Ng5 Rd1 2. (0.37): 25.b4 Kf6 26.Rh1 Kg7 27.a4 h6 28.a5 Rd3 29.Re1 a6 30.Re8 Rb3 31.Rc8 Rxb4 <29.Ne6+> might have been white's last chance to remain in the game: 1: Kaissa (Computer) - Chess 4 (Computer), World Computer Championship 1977 click for larger view Analysis by Rybka 2.3.2a mp: (20-ply) 1. (-0.14): 29...Kf7 30.Nxf4 h6 31.Nd5 Nxg4 32.Kg3 Nf6 33.Nxf6 Kxf6 34.Rxh6+ Kg5 35.Re6 Kf5 36.Re3 2. (-0.11): 29...Kg8 30.Rh5 Nxg4 31.Kf3 Nf6 32.Rf5 Kf7 33.Nxc7 Ke7 34.Nb5 h5 35.Rxf4 Ke6 36.Kg3 3. (-0.10): 29...Kf6 30.Nxf4 Nxg4 31.Rxh7 Rb2 32.Nd3 Rxb3 33.Nc5 Rb4 34.Rxc7 Ne5 35.f4 Nxc4 36.Nxb7

Jul-14-07		RandomVisitor: After 17.Nxd5 Black could have improved with 17...Bd8: 1: Kaissa (Computer) - Chess 4 (Computer), World Computer Championship 1977 click for larger view Analysis by Rybka 2.3.2a mp : (21-ply) 1. (-1.34): 18.Nxg5 Bxg5 19.Re3 Bf5 20.Qc3 Bxf4 21.gxf4 Rad8 22.Rg3+ Bg6 23.Re1 Qg7 24.Qxg7+ Kxg7 2. (-1.40): 18.Bxg5 Qxf3 19.Qxf3 Rxf3 20.Bf4 Bg4 21.Re4 Rd3 22.Bxc7 Bf3 23.Re8+ Kf7 24.Rae1 Rc8 3. (-1.72): 18.Nxc7 gxf4 19.Nxa8 fxg3 20.fxg3 Qxf3 21.Qxf3 Rxf3 22.Kg2 Rf8 23.Rf1 Re8 24.Rfe1 Ne5 4. (-1.93): 18.Re5 gxf4 19.Nxf4 Qg7 20.Re4 Bf5 21.Qd5+ Kh8 22.Re3 Bg4 23.Ne6 Qxb2 24.Rd1 Re8

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