Author: Dann Corbit
Date: 12:27:58 03/05/02
Go up one level in this thread
On March 05, 2002 at 13:35:06, Uri Blass wrote: >On March 05, 2002 at 11:43:35, Dann Corbit wrote: > >>On March 04, 2002 at 17:43:29, Albert Silver wrote: >> >>>The following position occurred in Spassky-Beliavsky, Reykjavik, 1988 >>> >>>2b1qrk1/5p1p/pBn3p1/1p2p3/4P2N/bBP1Q3/P4PPP/3R2K1 w - - >>> >>>Spassky found a tremendous move 25.Nxg6!! and won the game. I don't think any >>>engines will have much luck with it but feel free to try it. I've analyzed it in >>>detail and can verify that it is the strongest move and correct, so as a further >>>challenge, see if you can find the *strongest* continuation after the possible >>>defense: 25...hxg6 26.Qh6 Be6!? > > >This defence was discussed by albert silver and by me > >25.Nxg6 hxg6 26.Qh6 Be6 27.Rd3 f5 >28.Rg3 Rf6 29.Rh3 Kf7 30.Qh7+ Kf8 31.exf5 Bxb3 32.axb3 >seems to be decisive for white > >Yace proved 1.20 pawns for white in the root position for Nxg6 based on some >analysis that is based mainly on this line. The two lines (first the yace line, then the crafty 1 hr analysis:) W B W B W B W Nxg6 hxg6 Qh6 Be6 Rd3 f5 Rg3 Rf6 Rh3 Kf7 Qh7+ Kf8 exf5 Bxb3 axb3 c0 "seems to be decisive for white"; Nxg6 hxg6 Qh6 Be6 Rd3 f5 Rh3 Kf7 Qh7+ Kf6 Qh4+ Kg7 Bxe6 Qxe6 exf5 Qg8 Qh6+ Kf6 fxg6 Ke6 Rd3 Qh8 Qd2 Kf6 Agree out to Rg3 verses Rh3. So I went to Rg3 and analyzed what would happen there: [D]4qrk1/8/pBn1b1pQ/1p2pp2/4P3/bBP3R1/P4PPP/6K1 b - - acd 14; acn 546692901; acs 1001; c0 "after Nxg6 hxg6 Qh6 Be6 Rd3 f5 Rg3"; ce 82; pv Rf6 Rh3 Kf7 Bd5 Ke7 c4 Bb4 Qg7+ Qf7 Qh8 Qf8 Bxc6 Qxh8 Rxh8 Bxc4; I remain unconvinced that this line is better.
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