Author: Jeroen van Dorp
Date: 13:50:39 07/31/02
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On July 31, 2002 at 15:27:03, Torstein Hall wrote: >On July 31, 2002 at 11:20:10, Jeroen van Dorp wrote: > >Of course white has a material advantage, but Fritzie comes up with 1.Qc1! Ra6 >and a score of 0.78 at 16/40, suggsting Rd2. It looks like black can try to come >up with a fight here. > >And perhaps any human can feel the nerves with two "ugly" knights and a rook or >two are stearing down at your king..... Here's what Donner tells us in the story: Browne,W (2550) - Sosonko,G (2470) [B78] Hoogovens Wijk aan Zee (6), 1975 Here's the game until the draw: 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 0-0 9.Bc4 Bd7 10.0-0-0 Qb8 11.Bb3 a5 12.a4 Rc8 13.Ndb5 Nb4 14.Kb1 d5 15.exd5 Bxb5 16.Bf4 Rxc3 17.Bxb8 Rxb3 18.Be5 Bd3 19.cxd3 Nfxd5 20.Bxg7 Kxg7 ½-½ [D]r7/1p2ppkp/6p1/p2n4/Pn6/1r1P1P2/1P1Q2PP/1K1R3R w - - 0 21 Now Sosonko offers a draw, and Browne accepts it, after half an hour thinking, but commenting on it that it's rather silly that with the material he has he can't win (2N+2R against Q). Now this is the cumulated analysis throughout the article. Key line for Donner is 21. Qc1 b5 (very important) 22.axb5 a4 23. Qc4 (the important square for the queen). Between quotes the approximate words of Donner: 21.Qc1 [ 21.h4 h6 22.Rc1 "given by most commentators as the best move" 22...b5 23.axb5 a4 24.Qd1 "white has to target for the back rook, else he will be terminated immediately" 24...Rxd3 25.Qe2 a3 26.Rhd1 Rb3 27.Rd2 axb2 28.Rxb2 Rba3 29.Rd2 Rb3+ "and black keeps it a draw(...)"( 29...Ra1+ 30.Kb2 R8a2+ 31.Kb3 Ra3+) ] 21...b5 b5 is the main concern for Donner, as combined with the oncoming a-pawn will give black the possibility to support a full scal attack of the two rooks and knights. [ 21...Nxd3 22.Qc4; 21...Nc3+ 22.Qxc3+; 21...Nb6 "an idea from Timman" 22.Rd2 Rc8 23.Qd1 Rcc3] 22.axb5 a4 23.Qc4 The crucial field, according to Donner. With this move white checks all the black pieces J.
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