Author: Miguel A. Ballicora
Date: 04:40:41 01/24/03
Go up one level in this thread
On January 23, 2003 at 23:16:28, K. Burcham wrote: > >In this position Kasparov played 21.Bxg7 with a loss of material. >Kasparov thought this was a positional gain losing the bishop. >First question: will the programs agree with Kasparov and sac the bishop? > [D] 2r2rk1/p1q1bpp1/1p6/n2R4/8/P4N2/1B2QPPP/5RK1 w - - It is not clear that Bxg7 wins, Portisch played below standard after that. Still, Bxg7 is a great practical move. However, Deep Blue Jr showed that Rh5! is the move in this forum some time ago. A very long thread followed. http://ccc.it.ro/search/ccc.php?art_id=170923 Miguel > > >I assume Kasparov could see this line, and the position after this line is >played. >You can see that Kasparov is down in material with the bishop loss. >Second question: do the programs agree after this line that the position is >better for Kasparov with the loss of material? >position after this line 21. Bxg7 Kxg7 22. Ne5 Rfd8 23. Qg4+ Kf8 > [D] 2rr1k2/p1q1bp2/1p6/n2RN3/6Q1/P7/5PPP/5RK1 w - - > > >[Date "1983"] >[White "Kasparov, G"] >[Black "Portisch, L"] >[Result "1-0"] >[ECO "E12"] > >1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 >d5 6. cxd5 Nxd5 7. e3 Nxc3 8. bxc3 Be7 9. Bb5+ >c6 10. Bd3 c5 11. O-O Nc6 12. Bb2 Rc8 13. Qe2 >O-O 14. Rad1 Qc7 15. c4 cxd4 16. exd4 Na5 17. d5 >exd5 18. cxd5 Bxd5 19. Bxh7+ Kxh7 20. Rxd5 Kg8 21. Bxg7 >Kxg7 22. Ne5 Rfd8 23. Qg4+ Kf8 24. Qf5 f6 25. Nd7+ >Rxd7 26. Rxd7 Qc5 27. Qh7 Rc7 28. Qh8+ Kf7 29. Rd3 >Nc4 30. Rfd1 Ne5 31. Qh7+ Ke6 32. Qg8+ Kf5 33. g4+ >Kf4 34. Rd4+ Kf3 35. Qb3+ 1-0 > >kburcham
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