Author: Mike Byrne
Date: 10:45:08 05/31/04
Go up one level in this thread
On May 31, 2004 at 13:10:35, Robert Hyatt wrote:
>On May 31, 2004 at 12:36:58, Mike Byrne wrote:
>
>>On May 31, 2004 at 12:21:24, Robert Hyatt wrote:
>>
>>>On May 31, 2004 at 07:20:39, Uri Blass wrote:
>>>
>>>>On May 30, 2004 at 23:48:26, Mike Byrne wrote:
>>>>
>>>>>This is semi-follow up to Jorge post regardng Game 6 of the first match between
>>>>>Kasparov and Deep Blue , but not directly so I started a new thread.
>>>>>
>>>>>I witness this game live in Philadelphia with my brother-in-law. If anybody is
>>>>>interested in a program from the match . e-mail me privately. There was
>>>>>laughter after Nh5, it certainly did look like a computer move at the time..
>>>>>
>>>>>Annotations Copyright by Chessbase
>>>>>
>>>>>[Event "Philadelphia m"]
>>>>>[Site "Philadelphia"]
>>>>>[Date "1996.02.17"]
>>>>>[Round "6"]
>>>>>[White "Kasparov, Garry"]
>>>>>[Black "Comp Deep Blue"]
>>>>>[Result "1-0"]
>>>>>[ECO "D30"]
>>>>>[WhiteElo "2795"]
>>>>>[Annotator "Friedel"]
>>>>>[PlyCount "85"]
>>>>>[EventDate "1996.02.??"]
>>>>>[Source "ChessBase"]
>>>>>
>>>>>1. Nf3 {Keene Borik} d5 2. d4 c6 3. c4 e6 4. Nbd2 Nf6 5. e3 c5 {a tempo-losing
>>>>>move to deviate from game four. The Deep Blue team has prepared a line that
>>>>>should open up the position.} 6. b3 Nc6 7. Bb2 cxd4 8. exd4 Be7 9. Rc1 O-O 10.
>>>>>Bd3 Bd7 11. O-O Nh5 $2 {
>>>>>A very strange move which absolutely nobody at the site liked.} 12. Re1 Nf4 13.
>>>>>Bb1 Bd6 14. g3 Ng6 15. Ne5 Rc8 16. Nxd7 Qxd7 17. Nf3 Bb4 18. Re3 Rfd8 19. h4
>>>>>Nge7 20. a3 Ba5 21. b4 Bc7 22. c5 {Four consecutive pawn advances which drive
>>>>>back all the black pieces, which are stumbling over each other on the
>>>>>queenside.} Re8 23. Qd3 g6 24. Re2 Nf5 25. Bc3 h5 26. b5 {Keene calls this
>>>>>"Kasparov's strategy of strangulation" and points out that 26.b5 doesn't just
>>>>>attack the knight but establishes "a giant, crawling mass of white pawns,
>>>>>rather resembling a colossal army of soldier ants on the move."} Nce7 27. Bd2
>>>>>Kg7 28. a4 Ra8 29. a5 a6 30. b6 Bb8 {# Kasparov has shut the black bishop and
>>>>>rook out of play to the end of the game. Black's position is lost.} 31. Bc2 Nc6
>>>>>32. Ba4 Re7 33. Bc3 Ne5 {actually accelerating the end.} 34. dxe5 Qxa4 35. Nd4
>>>>>Nxd4 36. Qxd4 Qd7 {IM Otto Borik that other variations also lose:} (36... Qxd4
>>>>>37. Bxd4 {and Rb2, c6 wins, e.g.} Re8 38. Rb2 Rc8 39. c6 Rxc6 40. Rxc6 bxc6 41.
>>>>>b7 Ra7 42. Bxa7 Bxa7 43. b8=Q Bxb8 44. Rxb8) (36... Qc6 37. Bd2 Rd7 38. Bg5 Kf8
>>>>>39. Bf6 {and now f3, Rg2 and g4 wins.}) 37. Bd2 Re8 38. Bg5 Rc8 39. Bf6+ Kh7
>>>>>40. c6 $1 bxc6 (40... Rxc6 41. Rec2 Rxc2 42. Rxc2 Qe8 43. Qc5 {wins}) 41. Qc5
>>>>>Kh6 42. Rb2 Qb7 43. Rb4 $1 {And the Deep Blue team reseigned for the machine.
>>>>>Why did Black resign? IM Malcolm Pein explained this on the Internet: "Black
>>>>>has four pieces left plus his king. The rook on a8 and the bishop on b8 cannot
>>>>>move. If the queen on b7 moves it allows b7, winning a rook. If the rook on
>>>>>c8 moves White can play Qxc6, forcing an exchange of queens. After that there
>>>>>are many ways to win, the most prosaic being double on the c file and play Rc8.
>>>>>So we are left with Kh7! The simplest way then is Qe7 Qxe7 Bxe7 threatening b7
>>>>>and if Rc8-e8 then b7 Ra7 Bc5 etc. Note that had Kasparov left his rook on b2
>>>>>Black would have ...Bxe5 gaining a tempo."} (43. Rb4 Qd7 (43... Re8 44. Qxc6
>>>>>Qxc6 45. Rxc6 Kh7 46. b7 Ra7 47. Rbb6 Rg8 48. Rc8 d4 49. Rbc6 g5 (49... d3 50.
>>>>>Rxg8 Kxg8 51. Rc8+ Kh7 52. Rh8#) 50. Rxg8 Kxg8 51. Rc8+ Kh7 52. Rh8+ Kg6 53.
>>>>>Rg8+ Kf5 54. f3 {Threat: Rxg5#} Bxe5 55. Bxe5 {Threat: ditto} Kxe5 56. b8=Q+ {
>>>>>and mate.}) (43... Kh7 44. Qe7 Qxe7 45. Bxe7 Re8 46. b7 Ra7 47. Bc5 Rd8 48.
>>>>>Bxa7 Bxa7 49. Rxc6 Bb8 50. Rc8 {winning}) 44. b7) 1-0
>>>>>
>>>>>[d]2rr2k1/pp1qnppp/2n1p3/3p4/1bPP3P/1P2RNP1/PB3P2/1BRQ2K1 w - - 0 20
>>>>>
>>>>>There was much disussion in the audience about 20.Bxh7! - Yasser indicating
>>>>>that against a human , Kasparov most definitely would have played that move.
>>>>>After the game, Kasparov indicated as such - but he did not play it because he
>>>>>saw no reason to take the chance against Deep Blue. He was confident that he
>>>>>had a "won" game at this point and the was no reason to take unnecceary risks.
>>>>>Hsu also confirmed later that Deep Blue also like Bxh7 as the best move and it
>>>>>saw white with a winning score.
>>>>
>>>>
>>>>I remember that I read that it saw only a draw score for that move.
>>>>I never read that it saw winning score for Bxh7.
>>>>
>>>>Where did you read about the claim that deep blue saw Bxh7 with a winning score.
>>>>
>>>>Uri
>>>
>>>I talked to Hsu right after the match ended. His comment to me then was "DB saw
>>>Bxh7+ led to a repetition. But after a3, and making the bishop move, Bxh7+
>>>became a real threat to win."
>>>
>>>That's all I really remember, but he definitely said DB was expecting Bxh7 and
>>>was showing a draw score at that point....
>>
>>My recollection is fuzzy as to when (20.Bxh7+ or 21 Bxh7+) he said Bxh7 was real
>>strong at the site - but I can accept that he might have said or meant after 20.
>>a3 - bishop move and then 21. Bxh7+!
>
>
>I only remember the comment he made to me. That Bxh7 where everyone was buzzing
>was expected and only a draw, but after a3, white threated Bxh7 for real...
>
>I didn't do any analysis myself...
I just did a ton of analysis after 20. a3 Ba5 ...black is busted. Getting the
bishop off the a3-f8 diagonal changes everything ...note : 21. Bxh7 was not
played in the game
[Event "Philadelphia m"]
[Site "Philadelphia"]
[Date "1996.02.17"]
[Round "Analysis Game 6 21. Bh7"]
[White "Kasparov, Garry"]
[Black "Comp Deep Blue"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2795"]
[Annotator "Shredder 8"]
[PlyCount "60"]
[EventDate "1996.02.??"]
1. Nf3 d5 2. d4 c6 3. c4 e6 4. Nbd2 Nf6 5. e3 c5 6. b3 Nc6 7. Bb2 cxd4 8. exd4
Be7 9. Rc1 O-O 10. Bd3 Bd7 11. O-O Nh5 $2 12. Re1 Nf4 13. Bb1 Bd6 14. g3 Ng6
15. Ne5 Rc8 16. Nxd7 Qxd7 17. Nf3 Bb4 18. Re3 Rfd8 19. h4 Nge7 20. a3 Ba5 21.
Bxh7+ Kxh7 22. Ng5+ Kg8 (22... Kg6 23. Qd3+ Nf5 (23... Kh6 24. Qh7#) (23... f5
24. Rxe6+ {Shredder 8:} Qxe6 25. Nxe6 Rd6 26. Nf4+ Kf6 27. b4 dxc4 28. d5+ Kf7
29. Qc3 Nxd5 30. Qxg7+ Ke8 31. Nxd5 Bb6 32. Rxc4 Rxd5 33. Qxb7 {[%eval 757,14]}
) (23... Kh5 {Shredder 8:} 24. g4+ Kxh4 25. Rh3+ Kxg5 26. Rh5+ Kxg4 27. Qh3+
Kf4 28. Qg3+ Ke4 29. Qe3# {[%eval 32761,11]}) (23... Kf6 24. Nh7#) 24. g4 Bc7 (
24... dxc4 25. gxf5+ exf5 26. bxc4 Bc7 27. d5 Bf4 28. Rg3 f6 (28... Bxg3 29.
Qxg3 {Shredder 8:} f6 30. dxc6 Rxc6 31. Ne6+ Kh7 32. Nxd8 Qxd8 33. Qe3 b6 34.
Qf3 Rc5 35. Re1 Kg8 36. Qh5 {[%eval 357,12]}) 29. Ne6+ Bxg3 30. h5+ Kh7 (30...
Kxh5 31. Qxf5+ {Shredder 8:} g5 32. fxg3 {[%eval 32760,12]}) 31. Qxg3 Qf7 32.
Qg6+ Qxg6+ (32... Kg8 33. Nxd8 Qxg6+ 34. hxg6 {Shredder 8:} Nxd8 35. Re1 Nf7
36. gxf7+ Kxf7 37. d6 Re8 38. Rxe8 Kxe8 39. c5 Kd7 40. a4 b6 41. cxb6 axb6 42.
Bd4 Kxd6 43. Bxb6 Kc6 44. Be3 Kb7 45. f3 {[%eval 454,19]}) 33. hxg6+ Kxg6 34.
dxc6 bxc6 35. Nxd8 Rxd8 {Shredder 8:} 36. Kf1 Rd2 37. Bc3 Ra2 38. Bb4 f4 39.
Rd1 a5 40. Bxa5 Rxa3 41. Bb4 Ra4 42. Rb1 Kf5 {[%eval 206,18]}) 25. Rce1 dxc4 (
25... Kf6 26. Rxe6+ fxe6 27. Rxe6+ Qxe6 28. Nxe6 Kxe6 29. Qxf5+ {Shredder 8:}
Ke7 30. cxd5 Nb8 31. Qg6 Nd7 32. Qxg7+ Kd6 33. Qg6+ Kxd5 34. Qf5+ Kd6 35. a4
Bb8 36. Ba3+ Kc7 37. Be7 Nb6 38. Bxd8+ Rxd8 {[%eval 370,13]}) (25... Kh6 26.
Rxe6+ fxe6 27. Rxe6+ g6 28. Qxf5 {Shredder 8:} Qg7 29. h5 Ne7 30. Nf7+ Kh7 31.
hxg6+ Qxg6 32. Rxe7 Qxf5 33. Nxd8+ Kg8 34. gxf5 Bxd8 35. Rxb7 Kf8 36. c5 a6 37.
Ra7 Rc6 38. Kg2 Rh6 {[%eval 564,13]}) 26. bxc4 e5 (26... Kh6 {Shredder 8:} 27.
Rxe6+ fxe6 28. Rxe6+ Qxe6 29. Nxe6 Ncxd4 30. Bc1+ Kh7 31. Nxd4 {[%eval 569,12]}
) 27. gxf5+ Kh6 (27... Qxf5 28. h5+ Kxg5 29. Rg3+ Kf6 30. Rf3 {Shredder 8:} g6
31. d5 Na5 32. Rxf5+ gxf5 33. Qh3 Rg8+ 34. Kf1 Rg4 35. c5 Nc4 36. f3 Rf4 37.
Bc1 Rd4 38. d6 {[%eval 506,13]}) 28. d5 Na5 29. Bc1 f6 30. Rg3 e4 31. Nxe4+ Kh7
32. Nc5 Qf7 33. Rg6 Nxc4 34. Ne6 Ba5 {Shredder 8:} 35. Rf1 Ne5 36. Qe2 Rh8 37.
Rxg7+ Qxg7+ 38. Nxg7 Kxg7 39. Bf4 Rcg8 40. Qd2 Bxd2 {[%eval 519,12]}) 23. Qh5
Qe8 (23... Nf5 24. cxd5 Nce7 (24... Nxe3 {Shredder 8:} 25. d6 ({Shredder 8:}
25. d6 Qxd6 26. Qxf7+ Kh8 27. Qh5+ Kg8 28. Qh7+ Kf8 29. Qh8+ Ke7 30. Qxg7+ Ke8
31. Qf7# {[%eval 32760,13]})) (24... Ncxd4 25. Rxc8 Rxc8 26. Bxd4 Nxd4 {
Shredder 8:} 27. d6 Qxd6 28. Qxf7+ Kh8 29. Qg6 Kg8 30. Qh7+ Kf8 31. Qh8+ Ke7
32. Qxc8 Bd8 33. Qxb7+ Qd7 34. Qe4 Bb6 35. Qe5 Kf8 36. Nxe6+ {[%eval 678,13]})
(24... Bd2 25. Qh7+ Kf8 26. dxe6 fxe6 27. Nxe6+ Ke7 28. Re2 Bxc1 (28... Ne3 29.
Rxd2 Qxe6 30. Qxg7+ {Shredder 8:} Kd6 31. Re2 Rd7 32. Qg5 Nxd4 33. Rxe3 {
[%eval 528,12]}) 29. Qxf5 {Shredder 8:} Ne5 30. Rxe5 Kd6 31. Rd5+ Ke7 32. Rxd7+
Rxd7 33. Nc5 Rxc5 34. Qxc5+ Kd8 35. Qxc1 Rc7 36. Qg5+ Kc8 {[%eval 1344,11]}) (
24... Re8 25. Rc5 (25. Qh7+ Kf8 26. dxe6 fxe6 27. Nxe6+ Rxe6 28. Qxf5+ Ke7 29.
Qg5+ Ke8 30. Qg6+ Ke7 31. Qxg7+ Kd8 32. Qg5+ {Shredder 8:} Ne7 33. Qxa5+ b6 34.
Rxc8+ Kxc8 35. Qg5 Rxe3 36. Qxe3 a5 37. Qe4 Kd8 38. Qa8+ Nc8 39. d5 Qh3 {
[%eval 573,13]}) 25... Nh6 (25... Bc7 26. dxc6 {Shredder 8:} bxc6 27. Rxf5 Bf4
28. Qh7+ Kf8 29. Qh8+ Ke7 30. Rxf7+ Kd8 31. Qxg7 Qxf7 32. Nxf7+ Kc7 33. Ne5+
Kb8 34. gxf4 Rg8 35. Nxc6+ {[%eval 1895,13]}) 26. dxc6 Rxc6 27. Rxa5 Rc2 28.
Re2 {Shredder 8:} Rec8 29. Rxc2 Rxc2 30. Rxa7 Qc8 31. Nxf7 Nxf7 32. Ra8 Qxa8
33. Qf3 {[%eval 483,12]}) 25. Qh7+ Kf8 26. Qh8+ Ng8 27. Rxc8 Nxe3 28. Rxd8+
Qxd8 29. fxe3 exd5 30. Nh7+ Ke7 31. Qxg7 {Shredder 8:} Bc7 32. h5 Qe8 33. Kf2
Bd6 34. h6 Qc8 35. Qg5+ Kd7 36. Nf6+ Nxf6 37. Qf5+ Kc7 38. Qxf6 Qg8 39. Qg7
Qxg7 {[%eval 396,13]}) 24. Qh7+ Kf8 25. Qh8+ Ng8 26. b4 Bc7 27. c5 Ra8 (27...
b6 28. Nh7+ Ke7 29. Qxg7 bxc5 (29... e5 30. cxb6 axb6 31. dxe5 d4 (31... Nxe5
32. Rxe5+ Kd6 {Shredder 8:} 33. Rxd5+ Kxd5 34. Qd4+ Ke6 35. Re1+ {
[%eval 32762,9]}) 32. Nf6 dxe3 33. Nxe8 {Shredder 8:} e2 34. e6 Rd1+ 35. Kg2
Nd8 36. Qg5+ Kxe8 37. Qxg8+ Ke7 38. Qg5+ Kxe6 39. Qg4+ Kd6 40. Rxd1+ exd1=Q 41.
Qxd1+ Ke7 {[%eval 757,11]}) 30. Rce1 e5 (30... Be5 31. dxe5 Nd4 32. Bxd4 cxd4
33. Rf3) 31. dxc5 {Shredder 8:} Kd7 32. Bxe5 Bxe5 33. Rxe5 Nxe5 34. Rxe5 Qxe5
35. Qxe5 Kc6 36. Ng5 d4 37. Nxf7 Rb8 {[%eval 624,15]}) 28. Rce1 Rdc8 29. Nh7+
Ke7 30. Qxg7 Nd8 1-0
best read in software that knows about PGN NAGS ....Chessbase, Fritz,
Chesspartner etc,
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.