Author: K. Burcham
Date: 20:16:28 01/23/03
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 - - 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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