Author: John Merlino
Date: 15:15:09 10/22/05
Go up one level in this thread
On October 22, 2005 at 12:24:31, Dieter Buerssner wrote: >For position 13, the following analysis is given by Walter Eigenmann >(http://www.beepworld.de/members38/eigenmann/nightmare.htm): > >[Event "Akopian-Khenkin, Tilburg 1994"] >[Site "?"] >[Date "????.??.??"] >[Round "?"] >[White "Nightmare Nr.013"] >[Black "?"] >[Result "*"] >[Annotator "W.Eigenmann"] >[SetUp "1"] >[FEN "r1bqk1r1/1p1p1n2/p1n2pN1/2p1b2Q/2P1Pp2/1PN5/PB1P2PP/R4RK1 w q - 0 15"] >[PlyCount "7"] >[Source "Walter Eigenman"] >[SourceDate "2005.09.30"] > >15. Rxf4 $36 Bxf4 (15... Bd4+ 16. Kh1 Nce5 17. Nxe5 Bxe5 18. Raf1 $40) 16. Nd5 >Nce5 (16... Bg5 17. Rf1 Nd4 (17... Rxg6 18. Qxg6 $18) 18. h4 $18) 17. Ndxf4 d6 >(17... Rxg6 18. Nxg6 d6 19. Rf1 $40) 18. Rf1 $40 * > >I am just watching Yace analysing this position. It thought for a long time for >15. Rxf4 at depth 15, and finally "refuted" it by 15... d6, a move not >considered in Walter's analysis. Can anybody give some analysis after Rxf4 d6? > >[D] r1bqk1r1/1p3n2/p1np1pN1/2p1b2Q/2P1PR2/1PN5/PB1P2PP/R5K1 w q - 0 16 > >Regards, >Dieter > >PS. Thanks for the replies to my post about pos. 9, but my question was not >really answered. Is Bf6 enough to hold a draw? After 15.Rxf4 d6, CM9_R1 on a P4-2.4 gives White a slight edge after 16.Raf1! Bxf4 17.Nd5! Time Depth Score Positions Moves 0:00 1/6 -0.18 46937 16.Qh7 Rxg6 17.Qxg6 Ne7 18.Qg3 Bxf4 19.Qxf4 f5 20.Rf1 0:00 1/7 -0.37 86484 16.Qh7 Rxg6 17.Qxg6 Ne7 18.Qg3 Bxf4 19.Qxf4 f5 20.Qh4 Be6 0:01 1/7 -0.25 155509 16.Nxe5 dxe5 17.Rf2 Bg4 18.Qh7 Kf8 19.Nd5 Rg7 0:01 1/8 -0.55 315343 16.Nxe5 dxe5 17.Rf2 Bg4 18.Qh7 Kf8 19.Ba3 Qd4 20.Rf1 Rg7 0:06 1/9 -0.26 1115404 16.Nxe5 dxe5 17.Rf2 Be6 18.Nd5 Bxd5 19.cxd5 Rg5 20.Qh3 Nd4 21.Bxd4 exd4 0:14 1/10 -0.43 2731882 16.Nxe5 dxe5 17.Rf2 Nb4 18.Nd5 Nxd5 19.cxd5 Bg4 20.Qh7 Kf8 21.Rc1 Rg7 0:42 1/11 -0.59 8499655 16.Nxe5 dxe5 17.Rf2 Bg4 18.Qh4 f5 19.Qxd8+ Kxd8 20.exf5 Nd6 21.Ba3 b6 22.Nd5 Bxf5 23.Nxb6 1:03 1/11 -0.38 12869821 16.Qh7 Rxg6 17.Qxg6 Ne7 18.Qg3 Ng5 19.Qh4 Bxf4 20.Qxf4 Ng6 21.Qg3 Kf7 22.Rf1 1:49 1/12 -0.42 22038307 16.Qh7 Rxg6 17.Qxg6 Ne7 18.Qg3 b5 19.Nd1 Bxf4 20.Qxf4 bxc4 21.Bxf6 cxb3 22.axb3 Ng6 23.Qf3 Ng5 3:07 1/12 -0.30 38452332 16.Raf1 Bxf4 17.Nd5 Nce5 18.Ndxf4 Rg7 19.Bxe5 dxe5 20.Nd5 f5 21.Nxe5 Be6 5:21 1/13 -0.09 66515629 16.Raf1 Bxf4 17.Nd5 Nce5 18.Ndxf4 Nxg6 19.Nxg6 Be6 20.Bxf6 Qa5 21.Ne7 Bg4 22.Qd5 18:06 2/14 0.18 220716845 16.Raf1 Bxf4 17.Nd5 Nce5 18.Ndxf4 Rg7 19.Bxe5 dxe5 20.Nd5 f5 21.exf5 Qd6 22.Nh8 Qd8 23.Nxf7 Rxf7 After forcing those three moves (up to 17.Nd5), I get this: Time Depth Score Positions Moves 0:00 1/4 -2.24 7920 17...Be5 18.Bxe5 Rxg6 19.Qxg6 Nxe5 20.Nxf6+ Ke7 0:00 1/5 -0.73 20171 17...Be5 18.Nxe5 Nxe5 19.Nxf6+ Kf8 20.Nh7+ Ke8 21.Nf6+ Ke7 22.Nd5+ Kd7 23.Rxf7+ Nxf7 24.Qxf7+ Kc6 0:00 1/5 -1.19 26650 17...Nce5 18.Ngxf4 Rh8 19.Qe2 Bg4 20.Qe3 0:00 1/6 -1.40 62768 17...Nce5 18.Ngxf4 Rh8 19.Qe2 Bg4 20.Qe3 Ng5 0:01 1/7 -1.17 175143 17...Nce5 18.Ndxf4 Rg7 19.Bxe5 fxe5 20.Nd5 Qg5 0:02 1/8 -1.27 453209 17...Nce5 18.Ngxf4 Rh8 19.Qe2 Bg4 20.Qe3 Kf8 21.d4 0:05 1/9 -0.14 1024854 17...Nce5 18.Ndxf4 Rg7 19.Bxe5 dxe5 20.Nd5 f5 21.exf5 Qd6 0:14 1/10 -0.26 2790670 17...Nce5 18.Ndxf4 Nxg6 19.Nxg6 Be6 20.Bxf6 Qa5 21.Ne7 Bg4 22.Qd5 0:34 1/11 0.01 7033690 17...Nce5 18.Ndxf4 Rg7 19.Bxe5 dxe5 20.Nd5 f5 21.exf5 Qd6 22.Nh8 Qd8 23.Nxf7 Rxf7 1:27 1/12 0.10 18498942 17...Nce5 18.Ndxf4 Nxg6 19.Nxg6 Be6 20.Bxf6 Qd7 21.d3 a5 22.Nf4 Bg4 23.Qh4 Qc7 3:57 1/13 0.37 48963840 17...Nce5 18.Ndxf4 Rxg6 19.Nxg6 Be6 20.Nf4 Qe7 21.Qh4 b5 22.Nxe6 Qxe6 23.Rxf6 Qe7 24.Bxe5 Qxe5 11:12 2/14 0.41 143528614 17...Nce5 18.Ndxf4 Rxg6 19.Nxg6 Be6 20.Nf4 Qe7 21.Qh4 b5 22.Nxe6 Qxe6 23.Rxf6 Qe7 24.Bxe5 dxe5 Looks like White has a very scary attack going, so I don't think 15...d6 really is a refutation. jm
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