Author: martin fierz
Date: 15:35:54 10/24/02
Go up one level in this thread
On October 24, 2002 at 17:17:19, Robert Hyatt wrote:
>Here is a game where Kramnik played black, and he made the same sort of
>sacrifice he made against Deep Fritz, but he made it against Anand, and he
>got rapped for it. Crafty says this just drops a piece. I ran the position
>after
>Bxf2 to a pretty deep depth and the score didn't change as I even followed the
>game for a move or two deeper. If you let Crafty search for a black move
>there, it likes either the rook move as suggested in the annotation, or Nd8
>if you let it search longer than one second... Score after Bxf2 is +3.5, score
>after Nd8 is +.5.
>
>That seems to qualify as either a blunder or unsound sac... your choice. Here
>is the relevant PGN:
just took a quick look, and i see 1) that this is game 118 of the database, so
if you are going through it sequentially, then my assumption that 1 blunder out
of 8 games is uncharacteristic seems to hold, and 2) i think it's clear that
this is the type of Nxf7 mistake, not a Qc4-like blunder. it's not as if he
played Bxf2 and after Kxf2 went "oh my god, i just lost a piece" :-)
it's much more likely that he thought he had something for his piece and had
nothing in the end, like against fritz. of course we will not know what position
he misassessed in this variation so it's hard to say if he miscalculated
something at ply 3 or ply 13 or whatever...
i think in the fritz game the programs also say that Nxf7 just drops a piece.
aloha
martin
>
>[Event "1998.10.23"]
>[Site "Tilburg"]
>[Date "1998.11.10"]
>[Round "2"]
>[White "Anand, Viswanathan"]
>[WhiteElo "2795"]
>[Black "Kramnik"]
>[BlackElo "2780"]
>[Result "1-0"]
>[Annotator "Crafty v19.1"]
>{annotating for player Kramnik}
>{using a scoring margin of +1.00 pawns.}
>{search time limit is 1.00}
>
> 1. e4 e5
> 2. Nf3 Nf6
> 3. Nxe5 d6
> 4. Nf3 Nxe4
> 5. d4 d5
> 6. Bd3 Nc6
> 7. O-O Be7
> 8. Re1 Bg4
> 9. c3 f5
> 10. Qb3 O-O
> 11. Nbd2 Na5
> 12. Qa4 Nc6
> 13. Bb5 Nxd2
> 14. Nxd2 Qd6
> 15. h3 Bh5
> 16. Nb3 Bh4
> 17. Nc5 Bxf2+
> ({7:+3.33} 17. ... Bxf2+ 18. Kxf2 Nd8 19. Kg1 c6 20. Bd3 b6 21.
>Nb3 $18)
> ({7:+0.15} 17. ... Rfe8 18. Bd2 a6 19. Rxe8+ Rxe8 20. Bxc6 bxc6
>21. Qxa6 Re2 $10)
> 18. Kxf2 Qh2
> ({8:+4.91} 18. ... Qh2 19. Bxc6 bxc6 20. Qxc6 Qd6 21. Qxd6 cxd6
>22. Ne6 Rfe8 $18)
> ({8:+3.61} 18. ... Nd8 19. Qc2 Bg6 20. Nd7 a6 21. Nxf8 axb5 22.
>Nxg6 Qxg6 $18)
> 19. Bxc6 bxc6
> 20. Qxc6 f4
> 21. Qxd5+ Kh8
> 22. Qxh5 f3
> 23. Qxf3 Rxf3+
> 24. Kxf3 Rf8+
> 25. Ke2 Qxg2+
> 26. Kd3 Qxh3+
> 27. Kc2 Qg2+
> 28. Bd2 Qg6+
> 29. Re4 h5
> 30. Re1 Re8
> 31. Kc1 Rxe4
> 32. Nxe4 h4
> 33. Ng5 Qh5
> 34. Re3 Kg8
> 35. c4
> 1-0
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