Author: Uri Blass
Date: 09:46:42 01/24/01
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On January 24, 2001 at 10:00:26, Howard Exner wrote: >On January 24, 2001 at 06:37:43, Uri Blass wrote: > >>On January 23, 2001 at 20:38:08, Howard Exner wrote: >> >>>[Event "?"] >>>[Site "?"] >>>[Date "??.??.????"] >>>[Round "?"] >>>[White ""] >>>[Black ""] >>>[Result "*"] >>>[WhiteElo "?"] >>>[BlackElo "?"] >>>[FEN "r4r1k/4bppb/2n1p2p/p1n1P3/1p1p1BNP/3P1NP1/qP2QPB1/2RR2K1 w - - 0 1"] >>> >>>1. Ng5 hxg5 2. hxg5 Rfc8 3. Nf6 gxf6 4. gxf6 Bf8 5. Qh5 Kg8 6. Bh6 Bg6 >>>7. Qh1 Nxe5 8. Bxf8 Qxb2 9. Rf1 Qd2 10. Bg7 Bh7 11. Bxa8 Qxd3 12. Qb7 Qxf1+ >>>13. Kxf1 Bd3+ 14. Kg2 Nxb7 15. Rxc8+ Kh7 16. Rh8+ Kg6 17. Rh6+ Kf5 18. >>>Rh5+ Kg6 19. Rxe5 Nd6 20. g4 Ne8 21. Bf8 Nxf6 22. Rxa5 b3 23. Ba3 Nxg4 >>>24. Bb2 e5 25. Bf3 Bf5 26. Bxg4 Bxg4 27. Rxe5 * >>> >>>Here's a start at trying to uncover a winning line. There is most likely better >>>moves to be found but posting a plausible line may clarify what to play or not >>>to play. Having the game score would be usefull but it looks like it is >>>difficult to find. >>> >>>I entered in the first 4 moves manually on a gut feeling and let Gambit Tiger >>>wade through the rest. I doubt if this is the gamescore line but it wins barring >>>any oversights. >> >>This line is not convincing. > >But it may be convincing in eliminating an 1. ... hxg5 response from black. > >>Black has many alternatives. > >It is just a start as stated and not meant to be a complete analysis. Given the >complexity of the position, it is important to eliminate moves in black's >defense. If the line holds then >1. ...hxg5 is eliminated and one can concentrate on other alternatives >as in the four you provide. I am not sure if hxg5 is eliminated because black has also alternatives in the second and the third move that I did not post. > >> >>Deep Fritz's scores at depth 13 for some other options (the scores from black >>point of view): >> >>1...Bf5(0.63) 1...Bxd3( 0.38) 1...Bg6(0.16) 1...Nxd3(0.00) are some of them. <snipped> >What are Fritz's lines for these other choices? >What was Fritz's evaluation of hxg5? I remember that the evaluation of hxg5 was more optimistic for black. My Deep Fritz is busy in analyzing my correspondence games so it cannot use a lot of time for these moves. I gave it more than 10 minutes with the 5 options to get the scores that I posted. I also found small advantage for white when I gave it to analyze some minutes after Nxd3 but the score was not convincing(I do not remember it but I am sure that it was less than 0.5 pawns for white) Uri
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