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Subject: Re: i never say "program blunder", this is the first one i have experienced

Author: Tim Foden

Date: 12:59:50 07/21/01

Go up one level in this thread


On July 20, 2001 at 23:31:22, Dann Corbit wrote:

>On July 20, 2001 at 22:30:42, K. Burcham wrote:
>
>>
>>we all have lots of losses with our programs.
>>but this was the first blunder that i have experienced with any program.
>>check out 26...Qa7.
>>
>>this was a 5/5 game.
>>time for shredder5 was set on 8 seconds per move.
>>i could not get shredder5 to play this move again.
>>now it is sober and  it wants 26...Qc8.
>>must be the fumes off my cheap homemade beer.
>>
>>i think i will format and reload shredder5.
>>and pour out the beer.
>>
>>
>>
>>[Event "program blunder"]
>>[Site "?"]
>>[Date "2001.07.20"]
>>[Round "?"]
>>[White "gambit tiger 2.0"]
>>[Black "shredder 5"]
>>[Result "1-0"]
>>
>>1. d4 {0s} Nf6 {book 0s} 2. Bg5 {7s} Ne4 {book 0s} 3. Bf4
>>{6s} c5 {book 0s} 4. f3 {7s} Qa5+ {book 0s} 5. c3 {8s} Nf6
>>{book 0s} 6. d5 {7s} Qb6 {book 0s} 7. b3 {7s} g6 {book 0s}
>>8. e4 {6s} d6 {-0.68/10 8s} 9. Bd3 {8s} Bg7 {-0.23/11 8s}
>>10. Ne2 {7s} Nbd7 {-0.68/10 8s} 11. a4 {20s} O-O {-0.61/10
>>8s} 12. Nd2 {43s} Ne5 {-0.79/10 8s} 13. Nc4 {12s} Nxc4
>>{-0.41/11 8s} 14. Bxc4 {12s} Nd7 {-0.32/11 8s} 15. a5 {15s}
>>Qc7 {-0.33/11 8s} 16. O-O {17s} Ne5 {-0.29/11 8s} 17. Bxe5
>>{9s} Bxe5 {-0.23/13 8s} 18. f4 {13s} Bg7 {-0.07/12 8s}
>>19. f5 {13s} gxf5 {+0.02/11 8s} 20. exf5 {12s} Bd7
>>{+0.03/11 8s} 21. Qd2 {20s} b5 {+0.20/11 8s} 22. axb6 {12s}
>>axb6 {+0.08/11 8s} 23. Rxa8 {21s} Rxa8 {+0.22/11 8s}
>>24. Ng3 {6s} b5 {-0.15/11 8s} 25. Nh5 {13s} Be5 {-0.47/10
>>8s} 26. Qh6 {14s} Qa7 {-7.65/7 8s} 27. f6 {13s} Bxf6
>>{-M4/14 8s} 28. Rxf6 {11s} Qa1+ {-M3/15 8s} 29. Bf1 {10s}
>>Qxf1+ {-M2/17 8s} 30. Rxf1 {10s} Ra2 {-M1/13 8s} 1-0
>>
>>  [D] r5k1/2qbpp1p/3p3Q/1ppPbP1N/2B5/1PP5/6PP/5RK1 b - - 0 1
>
>Play enough blitz, and you'll see plenty of blunders.  The faster the games, the
>more commical the moves.  Have a look at some of these games, and you will see
>plenty of moves that will curl your toes:
>ftp://cap.connx.com/pub/The%20Gauntlet/calibration/quick/
>
>It appears that this position has some snags under the surface.  It might be
>interesting to give it a good long pounding.  It appears that Qc8 is also
>losing.

I inadvertantly left GLC analysing this all day, and so far it seems to support
this:

>fen r5k1/2qbpp1p/3p3Q/1ppPbP1N/2B5/1PP5/6PP/5RK1 b
>hash 96
 Hash table size set to: 96.0MB
>anal
 Game stage: Middle game
 Current eval: 0.09
 Ply  Time  Score   Nodes  Principal Variation
  4   0.66   2.72    5793  bxc4 Qg5+ Kh8 bxc4 Ba4
  4   0.74   2.72    8733  bxc4 Qg5+ Kh8 bxc4 Ba4
  5   0.98   2.46   10659  bxc4 Qg5+ Kh8 bxc4 Ba4 f6
  5   1.83   2.46   26250  bxc4 Qg5+ Kh8 bxc4 Ba4 f6
  6   3.48   2.44   55614  bxc4 bxc4 Bxc3 Qg5+ Kh8 Qxe7 Bd4+ Kh1
  6   5.51   2.44  108643  bxc4 bxc4 Bxc3 Qg5+ Kh8 Qxe7 Bd4+ Kh1
  7   9.16     --  443978  bxc4    (a=1.94 b=2.94 e=1.94)
  7   9.26 -320.90  472877  bxc4 f6 Bxf6 Rxf6 Ra1+ Rf1 Rxf1+ Kxf1 cxb3 Qg7#
                             <ht>
  7  10.60  -0.98  970411  Qd8 f6 Qf8 Qg5+ Kh8 fxe7 Qe8 Bd3 Bxc3
  7  11.73  -0.80 1544689  Qb8 f6 Bxf6 Nxf6+ exf6 Bd3 f5 Qg5+ Kh8 Bxf5
  7  12.56  -0.76 1986620  Bh8 Qg5+ Kf8 f6 Re8 Bd3 Bxf6 <ht>
  7  13.69  -0.76 2559029  Bh8 Qg5+ Kf8 f6 Re8 Bd3 Bxf6 <ht>
  8  14.14  -1.22 2805097  Qd8 f6 Qf8 Qg5+ Kh8 fxe7 Qe8 Nf6 Qxe7 Nxh7
  8  17.08  -0.92 4299492  Bf6 Nxf6+ exf6 Rf4 Bxf5 Bxb5 Qb6 Bf1 Bg6 Bc4
  8  18.91     ++ 5250790  bxc4    (a=-1.26 b=-0.26 e=-0.26)
  8  19.10     -- 5348771  bxc4    (a=-0.27 b=321.00 e=-0.27)
  8  19.11 -320.90 5353661  bxc4 f6 Bxf6 Rxf6 Ra1+ Rf1 Rxf1+ Kxf1 cxb3 Qg7#
                             <ht>
  8  19.11  -0.92 5353663  Bf6 <ht>
  8  19.38  -0.92 5488402  Bf6 <ht>
  9  27.79  -0.90 9732136  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qe8 Bd3 Bxc3 Rf2 b4
  9  33.27  -0.90  12613k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qe8 Bd3 Bxc3 Rf2 b4
 10  35.52  -0.87  13874k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qe8 Rf6 Qg8 Qxg8+ Kxg8 Bd3
                             Re8 Rh6
 10  44.09  -0.87  18339k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qe8 Rf6 Qg8 Qxg8+ Kxg8 Bd3
                             Re8 Rh6
 11  53.86  -0.69  24028k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Bd3 Bxc3 Nf4
                             Re8 Ne2 b4
 11   1:05  -0.69  29852k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Bd3 Bxc3 Nf4
                             Re8 Ne2 b4
 12   1:22  -0.81  39567k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Bd3 Bxc3
                             Nf6+ Bxf6 Rxf6 Re8 Rxd6 Rxe7 Rf6
 12   1:58  -0.81  58937k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Bd3 Bxc3
                             Nf6+ Bxf6 Rxf6 Re8 Rxd6 Rxe7 Rf6
 13   6:37     -- 198047k  Qc8     (a=-1.31 b=-0.31 e=-1.31)
 13   7:18     ++ 217837k  Qc8     (a=-321.00 b=-1.30 e=-1.30)
 13   7:46  -1.76 232249k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 Be8 Rf6 Re1+ Rf1
 13  16:59  -1.76 503995k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 Be8 Rf6 Re1+ Rf1
 14  21:59  -1.71 650227k  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 Re1+ Kf2 Re7 Rf6 Re8
 14  34:57  -1.71   1013m  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 Re1+ Kf2 Re7 Rf6 Re8
 15  43:15  -1.86   1255m  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 h5 c4 bxc4 bxc4 Re1+ Kf2
                             Re7
 15 1:23:32  -1.86   2382m  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 h5 c4 bxc4 bxc4 Re1+ Kf2
                             Re7
 16 2:01:59  -1.84   3527m  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 b4 c4 Re1+ Kf2 Re7 Rh6 f5
 16 3:55:04  -1.84   6710m  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 b4 c4 Re1+ Kf2 Re7 Rh6 f5
 17 5:24:32  -1.87   9371m  Qc8 f6 Qf8 Qg5+ Kh8 fxe7 Qg8 Qxg8+ Kxg8 Nf6+ Bxf6
                             Rxf6 Re8 Rxd6 Rxe7 Bd3 Kg7 c4 b4 Ra6 Re3 Bc2 Re2
 17 11:44:16   2/38          Bxf5   >

Cheers, Tim.




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