Author: Chessfun
Date: 23:20:27 08/14/00
Go up one level in this thread
On August 15, 2000 at 01:41:35, Peter Kappler wrote: >On August 14, 2000 at 19:07:41, Peter Kappler wrote: > >>On August 14, 2000 at 18:51:26, Wayne Lowrance wrote: >> >>>On August 14, 2000 at 18:23:36, Michael Fuhrmann wrote: >>> >>>>On August 14, 2000 at 18:02:13, Robert Hyatt wrote: >>>> >>>>>On August 14, 2000 at 17:15:03, Bruce Moreland wrote: >>>>> >>>>>>On August 14, 2000 at 13:55:30, Robert Hyatt wrote: >>>>>> >>>>>>>On August 14, 2000 at 00:25:54, Ed Schröder wrote: >>>>>>> >>>>>>>>On August 13, 2000 at 23:04:06, robert blackwell wrote: >>>>>>>> >>>>>>>>>People should check out a position more carefully before claiming a move is bad. >>>>>>>>>bxa2 in the position given in the earlier post is the right move and it is the >>>>>>>>>move nd5 which loses as it breaks the pin on the d file preventing bxb3! any >>>>>>>> >>>>>>>>1..Bxa2 2.b3 Nd5 and black holds the position. If this is what you >>>>>>>>mean I am in agreement. >>>>>>>> >>>>>>>>Ed >>>>>>> >>>>>>> >>>>>>>If by "holds" you mean doesn't lose material, then I agree. If you mean >>>>>>>"maintains near-equality_ then I don't agree... >>>>>> >>>>>>Regardless of whether it is good or bad, I don't want to see my program play >>>>>>Bxa2, since it is often a losing blunder, and even when it isn't, it looks like >>>>>>a gross computer move. >>>>>> >>>>>>bruce >>>>> >>>>> >>>>>Couldn't agree more. Except for those cases where the bishop takes and then >>>>>escapes. It is ugly to see programs that some argue play at a strong GM level, >>>>>play a move like Bxa2 that no beginner would play (may be ok in this position, >>>>>although black seems to get into trouble). >>>>> >>>>>I used to cringe at such moves. >>>> >>>>This debate recalls (for me) a similar move Fischer played vs Spassky in the >>>>world championship. (Think it was Bxa7, leading to a trapped bishop.) At the >>>>time I remember the commentators being incredulous that Fischer played a moved >>>>that no club player would play, etc. If I remember correctly, Fischer lost that >>>>game badly. >>> >>>That is correct. I was just getting ready to make that very same comment just >>>prior to looking at your thread. I remembered it well at thhe time and could not >>>believe that he actually made it. >>>Wayne >> >> >>Fischer's move from that game is highly misunderstood. He fully realized that >>the bishop would be trapped. He analyzed a very long, complicated line where he >>could win 3 pawns for the bishop, and simply misjudged the resulting positions. >> >>GM Jon Speelman published an exhaustive analysis (~25 pages) of that endgame. >>It is incredibly complicated, and just *barely* losing for Fischer. > >Oops. I just checked Speelman's book "Analyzing the Endgame" and after 20 pages >of analysis, he concludes that Fischer's Bxh2 actually draws. > >--Peter Funny as when I first saw the debate on Bxa2, the Fischer game immediately came to mind. I am not sure I have ever read comments of his regarding the thought process and never knew about the Speelman book. If you can find or know of any web link to the analysis please post it I would be interested in looking at it, as I only myself looked at this game again yesterday. For those who don't have it here it is: [Event "World Championship"] [Site "Reykjavik"] [Date "1972.??.??"] [Round "1"] [White "Spassky, Boris V."] [Black "Fischer, Robert J."] [Result "1-0"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nc6 8. a3 Ba5 9. Ne2 dxc4 10. Bxc4 Bb6 11. dxc5 Qxd1 12. Rxd1 Bxc5 13. b4 Be7 14. Bb2 Bd7 15. Rac1 Rfd8 16. Ned4 Nxd4 17. Nxd4 Ba4 18. Bb3 Bxb3 19. Nxb3 Rxd1+ 20. Rxd1 Rc8 21. Kf1 Kf8 22. Ke2 Ne4 23. Rc1 Rxc1 24. Bxc1 f6 25. Na5 Nd6 26. Kd3 Bd8 27. Nc4 Bc7 28. Nxd6 Bxd6 29. b5 Bxh2 30. g3 h5 31. Ke2 h4 32. Kf3 Ke7 33. Kg2 hxg3 34. fxg3 Bxg3 35. Kxg3 Kd6 36. a4 Kd5 37. Ba3 Ke4 38. Bc5 a6 39. b6 f5 40. Kh4 f4 41. exf4 Kxf4 42. Kh5 Kf5 43. Be3 Ke4 44. Bf2 Kf5 45. Bh4 e5 46. Bg5 e4 47. Be3 Kf6 48. Kg4 Ke5 49. Kg5 Kd5 50. Kf5 a5 51. Bf2 g5 52. Kxg5 Kc4 53. Kf5 Kb4 54. Kxe4 Kxa4 55. Kd5 Kb5 56. Kd6 1-0 Thanks.
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