Author: Uri Blass
Date: 05:46:46 08/10/05
Go up one level in this thread
On August 10, 2005 at 07:59:51, Uri Blass wrote: >On August 10, 2005 at 07:44:28, Joachim Rang wrote: > >>On August 10, 2005 at 07:36:19, Günther Simon wrote: >> >>>On August 10, 2005 at 07:31:47, Joachim Rang wrote: >>> >>>[D]r3kn1r/ppbb1q1p/2p5/3p1n2/3N1P2/2P5/PPBBP2P/2KR2QR w ha - (S-Fen) >>> >>>>14.Nexf5?? >>>> >>>>Definitely a bug. >>> >>> >>>No. A strange feature(?) look at my analysis post Joachim :) >>>http://www.talkchess.com/forums/1/message.html?441061 >>> >>>Regards, >>>Guenther >>> >>>> >>>>regards Joachim >> >>You are correct, it is neither a bug nor a strange feature. The horizon effect >>struck. What do we learn out of this? Either use a stronger program or better >>hardware. ;-) >> >>regards Joachim > >This is not all the story >The baron blundered earlier by developing the pieces with 12.Bd2 > >12.Nexf5 could give advantage of a pawn to the baron but again it prove itself >to be weak at tactics. > >Note that this is harder to find for most programs but >I am almost sure that Fruit can find it in less than a minute if fabien only fix >the search bugs of it. > >The Baron - Svidler,P, 25m + 10s Mainz 2005 2005 >[D]rbb1kn1r/pp3q1p/2pn4/3p1p2/3N1P2/2P1N3/PPB1P2P/R1B1K1QR w KQkq - 0 1 > >Analysis by Fruit 2.1: > >12.Rb1 > ± (0.71) Depth: 1/1 00:00:00 >12.Bd2 > ± (1.26) Depth: 1/1 00:00:00 >12.Bd2 Ne4 > ± (0.71) Depth: 2/12 00:00:00 >12.Bd2 Ne4 13.Bxe4 fxe4 > ² (0.39) Depth: 3/13 00:00:00 >12.Qg5 Ne4 13.Qh6 > ² (0.63) Depth: 3/13 00:00:00 >12.Qg2 Ne4 13.Rf1 > ² (0.65) Depth: 3/13 00:00:00 >12.Qf1 Ne4 13.Rg1 > ± (0.81) Depth: 3/13 00:00:00 >12.Qf1 c5 13.Nf3 Ne4 > ² (0.33) Depth: 4/13 00:00:00 >12.Bd2 Rg8 13.Qf2 Ne4 > ² (0.41) Depth: 4/15 00:00:00 >12.Bd2 Ng6 13.0-0-0 Ne4 14.Bxe4 fxe4 > ² (0.34) Depth: 5/16 00:00:00 >12.Qg5 Rg8 13.Qh6 Bc7 14.Bd2 > ² (0.69) Depth: 5/17 00:00:00 >12.Qg5 Rg8 13.Qh6 Bc7 14.Bd2 Ne4 > = (0.15) Depth: 6/17 00:00:00 46kN >12.Qf1 Ne4 13.Ba4 Bd7 14.Rg1 Qh5 > = (0.19) Depth: 6/18 00:00:00 55kN >12.Ba4 Ne4 13.Nxc6 Qd7 14.Nxb8 Qxa4 > ² (0.37) Depth: 6/18 00:00:00 95kN >12.Ba4 Ne4 13.Nxc6 Bd7 14.Nxb8 Bxa4 15.b3 Rxb8 16.bxa4 Nxc3 > ³ (-0.30) Depth: 7/21 00:00:01 153kN >12.Qf1 Ne4 13.Qh3 Ne6 14.Ndxf5 Nxf4 15.Ng7+ Kd8 > = (-0.13) Depth: 7/21 00:00:01 195kN >12.Qg5 Rg8 13.Qh6 Ne4 14.Ba4 Bd7 15.Rf1 > = (0.24) Depth: 7/21 00:00:01 242kN >12.Qg5 Rg8 13.Qh6 Ne4 14.Bxe4 fxe4 15.Rf1 Ng6 16.f5 > = (-0.06) Depth: 8/26 00:00:01 367kN >12.Qg2 Ng6 13.Rf1 Ne4 14.Bxe4 fxe4 15.f5 Nf4 16.Qg5 > = (0.08) Depth: 8/26 00:00:01 595kN >12.Qg2 Ne4 13.Rf1 Ng6 14.Bxe4 fxe4 15.f5 Nf4 16.Qg5 Rg8 > = (-0.20) Depth: 9/26 00:00:02 1441kN >12.Qg5 Rg8 13.Qh6 Ne4 14.Rf1 Ng6 15.Bd2 Bd6 16.0-0-0 > = (-0.02) Depth: 9/26 00:00:02 1547kN >12.Qg5 Rg8 13.Qh6 Ne4 14.Nf3 Ng6 15.Ng5 Qg7 16.Qxg7 Rxg7 17.Nxe4 fxe4 > = (-0.07) Depth: 10/26 00:00:04 2399kN >12.Qg5 Rg8 13.Qh6 Ne4 14.Rf1 Bc7 15.Bd2 Bd7 16.0-0-0 c5 17.Nf3 > = (-0.12) Depth: 11/27 00:00:06 4632kN >12.Qg5 Ne6 13.Nxe6 Bxe6 14.Rg1 Ne4 15.Qg7 Rf8 16.Nf1 Bd6 17.Be3 0-0-0 18.Nd2 > ³ (-0.32) Depth: 12/36 00:00:14 11752kN >12.Bd2 Ne4 13.0-0-0 Bxf4 14.Qf1 Ng6 15.Nexf5 Bxf5 16.Bxf4 Bh3 17.Qxh3 Nxf4 >18.Qg4 > ³ (-0.26) Depth: 12/36 00:00:35 28746kN >12.h4 Ne4 13.Qh2 Rg8 14.Rf1 Bd6 15.Qh3 Ne6 16.Ndxf5 Bxf4 17.Nc4 N6g5 > = (-0.22) Depth: 12/36 00:00:43 34919kN >12.h4 Ne4 13.Qh2 Rg8 14.Rf1 Bd7 15.Bd2 c5 16.Nf3 Nxd2 17.Nxd2 Bc7 18.Qh1 Be6 > = (-0.22) Depth: 13/36 00:00:59 47710kN >12.Nexf5 Nxf5 13.Nxf5 Ng6 14.Qe3+ Kd8 15.Nh6 Qf6 16.f5 Nf4 17.Qf2 Qxh6 18.Rf1 >Qh5 19.Bxf4 Bxf5 20.Bxf5 Qxf5 > ² (0.63) Depth: 13/36 00:01:42 83853kN > >(, 10.08.2005) > >Uri More analysis with the help of Junior suggest that I am wrong and 12.Nexf5 gives nothing for white and black probably has at least a draw against it. [Event "25m + 10s"] [Site "Mainz 2005"] [Date "2005.08.10"] [Round "2"] [White "The Baron"] [Black "Svidler, P."] [Result "0-1"] [SetUp "1"] [FEN "rbbnknqr/pppppppp/8/8/8/8/PPPPPPPP/RBBNKNQR w KQkq - 0 1"] [PlyCount "58"] [EventDate "2005.??.??"] 1. d4 d5 2. c3 f5 3. Nd2 c6 4. Nf3 Nf7 5. Bc2 e5 6. dxe5 Nxe5 7. Nd4 Qf7 8. f4 Nc4 9. Ne3 Nd6 10. g4 g6 11. gxf5 gxf5 12. Bd2 (12. Nexf5 Nxf5 13. Nxf5 (13. Bxf5 Bxf5 14. Nxf5 Qxf5 15. Qg7) 13... Bxf5 14. Bxf5 Qxf5 15. Qg7 Ng6 16. Qxb7 Qe4) 12... Bc7 13. O-O-O Bd7 14. Nexf5 Nxf5 15. Rf1 (15. Nxf5 Bxf5 16. Bxf5 Qxf5 17. Qg7 O-O-O 18. Qxh8 Ne6 19. e4 dxe4) 15... Rg8 16. Qf2 Bb6 17. Rhg1 Rxg1 18. Rxg1 O-O-O 19. Rg5 Bxd4 20. cxd4 Ng6 21. Bd3 Rg8 22. Kb1 h6 23. Rg1 Nfe7 24. Ka1 Bf5 25. Qe3 Bxd3 26. Qxd3 Nf5 27. Be1 Nge7 28. Bf2 Rxg1+ 29. Bxg1 Qg8 0-1
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