Author: Gordon Rattray
Date: 10:26:26 12/21/01
Go up one level in this thread
On December 18, 2001 at 09:14:07, José Antônio Fabiano Mendes wrote: > This is a very long story, including the familiar subplot of White trying a >little too hard to win and then losing his objectivity. Here I will present just >one snapshot. After a few inaccurate moves by White, the following position was >reached: > [D]5b2/k4N2/6p1/8/1p2Pp1p/1K5P/6P1/8 b > The tables have been turned, clearly, but one would guess White could still > hold a draw. Here Dolmatov found the remarkably subtle idea 63...Kb8!! > Dvoretsky comments: > A fantastic move! Let us try and decipher it. > Black’s first objective is to consolidate his kingside by Be7 > and g6-g5, after which his opponent will constantly have to > reckon with ...g5-g4. Here 63...Be7? is not possible in > view of 64. Ne5 with the threats of 65. Nc6+ and 65. > Nxg6, so Dolmatov first wants to bring up his king. > > After 63...Kb7? White saves himself by 64. Nd8+! Kc8 65. > Ne6 Bd6 66. e5! Bxe5 67. Kxb4, while if 63...Kb6? there > follows 64. Ne5 with the threats of 65. Nxg6 and 65. Nd7+. > Black’s only chance is a piece sacrifice. But where can he > move his king after 64...g5 65 Nd7+ ? [ 65...Kb5? 66. Nxf8 > g4 67. Ne6 f3 68. Nd4+ and 69. Nxf3 will not do. He also > loses after 65...Kb7? 66. Kxf8 g4 67. Ne6! f3 68. gxf3 gxh3 > 69. Nc5+ Kc6 70. Nd3, ... while if 65...Ka5(a7) 66. Nxf8 > g4 67. e5! and the pawns queen simultaneously.] > > By playing 63...Kb8!! Black prepares in the variation with > the piece sacrifice to occupy c8, the ideal square for his king , > here it does not come under check by the knight and it also > halts the advance of the e-pawn: 64. Ne5 g5! 65. Nd7+ (65. > Nc6+ Kc7 66. Nxb4? Bxb4 67. Kxb4 g4; 65. Ng6 Bc5 66. > Kc4 Kc7 67. Kxc5? b3 68. Ne7 b2 69. Nd5+ Kd7 70. Nc3 > g4 71. Kd4 g3! and 72...f3) 65...Kc8! 66. Nxf8? g4, and White loses. > Phew! On this game Mikhail Tal’s comment (proudly > displayed as the opening quotation for this chapter) was : > "The young Moscow grandmaster found such a fantastic idea of > mutual zugzwang with his opponent to move, that certain > grandmasters still look at it and are unable to understand it." > -------------------------------------------------------------- > Source: http://www.chesscafe.com/REVIEWS/books.HTM Two questions... i) what is the expected result of this test? Win for Black? Or a draw? The text illustrates some losing lines for White, but it doesn't say White is lost in all lines. ii) what does Black play after: 63)... Kb8 64) Kc4 ? I guess Black wants to get his king to the king-side (as the text suggests), but is it enough to win? If so, any example lines? My analysis has centred around: 63) ... Kb8 64) Kc4 Kc7 65) Ne5 g5 66) Nf3 Be7 67) e5 Kd8 68) Nd4 Ke8 69) Ne6 Kf7 70) Nd4 But I can't yet see a win for Black. thanks Gordon
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