Author: Dana Turnmire
Date: 19:12:32 01/31/03
Ten years ago I would have never even questioned the analysis of a strong master concerning a positional move. However, with grandmasters now being regularly defeated by PC programs we all now have to take the edicts of even strong masters with a grain of salt. In the following position at move 23 IM Graeme Buckley gives the following possible moves: 23.f5 23.fxe5 23.d6 23.Nxc5. He says this: "These are complicated moves that all allow at least one of black's bishops to strike across the board. 23.d6, which opens up the diagonal for the bishop on b7, 23.fxe5 and 23.Nxc5 all score one point." "Five points for the thematic 23.f5! with a bonus of one if you planned to meet 23...g5 with 24.Ne4. The threats of f5-f6, Nxc5 and d5-d6 ensure that White will have an advantage after getting the pawn back." Chessmaster 9000 recommends 23.Ne4 with a score of 1.02. IM Buckley doesn't even give that move as an option. Genius 7 gives the "thematic" move 23.f5 with an evaluation of .72 but now the time has come as to whether we can any longer trust our chess manuals or if we go with computer analysis. The thematic move 23.f5 may very well be correct but how could anyone other than a grandmaster be for sure? [Event "Valle d'Aosta Open, 8th"] [Site "Saint Vincent ITA"] [Date "2000.02.18"] [Round "7"] [White "Franco Ocampos, Zenon"] [Black "Colovic, Aleksandar"] [TimeControl "-"] [Result "1-0"] [ECO "A24"] [WhiteELO "2511"] [BlackELO "2414"] 1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.g3 Bg7 5.Bg2 O-O 6.Nge2 c6 7.O-O e5 8.d3 a6 9.h3 b5 10.f4 Bb7 11.Be3 Nbd7 12.b3 Re8 13.Qd2 exf4 14.gxf4 b4 15.Na4 c5 16.Rae1 Qc7 17.Rf2 h6 18.Ng3 Nh7 19.Ref1 Rf8 20.d4 Rad8 21.d5 Rde8 22.e5 dxe5 23.f5 e4 24.Nxe4 Ng5 25.Nxg5 Rxe3 26.f6 Rfe8 27.Ne6 Qg3 28.fxg7 fxe6 29.dxe6 Ne5 30.Rf8+ Kxg7 31.Qd7+ 1-0 [d]4rrk1/1bqn1pbn/p5pp/2pPp3/NpP2P2/1P2B1NP/P2Q1RB1/5RK1 w - - 0 23
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