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Subject: Re: Only a simple pawn ending but Shredder is blind!

Author: Vincent Lejeune

Date: 11:02:35 06/01/04

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On June 01, 2004 at 13:09:15, Eduard Nemeth wrote:

>Only a simple pawn ending – but Shredder is blind!
>
>
>[Event "Blitz:5'"]
>[Site "Online Chess Game"]
>[Date "????.??.??"]
>[Round "?"]
>[White "Eduard"]
>[Black "Opponent"]
>[Result "*"]
>[SetUp "1"]
>[FEN "8/5p2/2k3pp/4PP1P/p1K3P1/8/8/8 b - - 0 49"]
>[PlyCount "9"]
>[TimeControl "300"]
>
>49... g5 (49... a3 50. e6 fxe6 51. hxg6 a2 52. g7 a1=Q 53. g8=Q $11) 50. Kb4
>Kd5 51. e6 fxe6 52. f6 Kd6 53. Kxa4 Kd7 $19 {and black wins!} *
>
>
>[D]8/5p2/2k3pp/4PP1P/p1K3P1/8/8/8 b - - 0 1
>
>Analysis by Shredder 7.04:
>
>49...g5 50.Kb4 Kd5 51.e6 fxe6 52.f6 Kd6 53.Kxa4 e5 54.Kb5 e4 55.Kc4 Ke5 56.f7
>Ke6 57.f8D Kd7 58.Dxh6
>  µ  (-0.73)   Tiefe: 17/33   00:00:17  2100kN, tb=6047
>49...g5 50.Kb4 Kd5 51.e6 fxe6 52.f6 Kd6 53.Kxa4 e5 54.Kb5 Ke6 55.Kc4 Kf7 56.Kc5
>Ke6 57.Kc4 Kf7 58.Kc5 Ke6 59.Kc4 Kf7
>  =  (0.00)   Tiefe: 17/33   00:00:19  2279kN, tb=6197
>49...a3 50.fxg6 fxg6 51.Kb3 g5 52.e6 Kd6 53.Ka2 Kxe6 54.Kb1 Ke5 55.Kc1 a2 56.Kb2
>Kf4 57.Kc1 a1D+ 58.Kc2
>  =  (-0.01)   Tiefe: 17/39   00:01:54  12976kN, tb=47382
>
>(Nemeth, Privat 01.06.2004)
>
>My World:
>
>http://www.beepworld.de/members37/computerschach/
>
>Eduard

Here what said Shredder 8, amd 2800+, 384 MB hash
it found g5 winning, very quickly !!! (2 sec)

Analysis by Shredder 8:

1...gxf5 2.gxf5
  -+  (-1.44)   Profondeur: 1/2   00:00:00
1...gxf5 2.gxf5
  -+  (-1.44)   Profondeur: 1/2   00:00:00
1...a3
  -+  (-2.35)   Profondeur: 1/2   00:00:00
1...a3
  -+  (-2.35)   Profondeur: 1/2   00:00:00
1...a3 2.fxg6 fxg6
  ³  (-0.38)   Profondeur: 2/2   00:00:00
1...a3 2.Rb3
  µ  (-0.97)   Profondeur: 2/3   00:00:00
1...gxf5 2.gxf5 a3
  -+  (-2.04)   Profondeur: 2/3   00:00:00
1...gxf5 2.gxf5 a3
  -+  (-2.04)   Profondeur: 2/3   00:00:00
1...gxf5 2.gxf5 Rd7 3.f6
  -+  (-1.70)   Profondeur: 3/4   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3
  ³  (-0.60)   Profondeur: 3/4   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3
  ³  (-0.60)   Profondeur: 3/4   00:00:00
1...g5 2.Rb4 Rd5 3.Rxa4 Rxe5
  ³  (-0.66)   Profondeur: 3/6   00:00:00
1...g5 2.Rb4 Rd5 3.Rxa4 Rxe5
  ³  (-0.66)   Profondeur: 3/6   00:00:00
1...g5 2.Rb4 Rd5 3.Rxa4 Rxe5
  ³  (-0.66)   Profondeur: 4/5   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3 Rd5
  µ  (-0.78)   Profondeur: 4/7   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3 a2 4.Rxa2
  µ  (-1.13)   Profondeur: 4/7   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3 Rd5
  µ  (-1.13)   Profondeur: 4/7   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3 Rd5 4.Rxa3 Rxe5
  µ  (-0.91)   Profondeur: 5/8   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3 Rd5 4.Rxa3 Rxe5
  µ  (-0.91)   Profondeur: 6/8   00:00:00
1...gxf5 2.gxf5 a3 3.Rb3 Rd5 4.e6 fxe6 5.fxe6 Rd6
  ³  (-0.62)   Profondeur: 7/10   00:00:00  2kN, tb=1
1...gxf5 2.gxf5 a3 3.Rb3 Rd5 4.e6 fxe6 5.fxe6 Rd6
  ³  (-0.62)   Profondeur: 7/13   00:00:00  2kN, tb=2
1...gxf5 2.gxf5 a3 3.Rb3 Rb5 4.Rxa3 Rc4 5.e6 fxe6
  ³  (-0.32)   Profondeur: 8/11   00:00:00  4kN, tb=22
1...gxf5 2.g5 a3 3.gxh6 a2 4.h7 a1D 5.h8D Da6+ 6.Rb3
  =  (0.18)   Profondeur: 8/15   00:00:00  7kN, tb=36
1...gxf5 2.g5 a3 3.gxh6 a2 4.h7 a1D 5.h8D Da4+ 6.Rd3
  ²  (0.40)   Profondeur: 8/15   00:00:00  7kN, tb=36
1...a3 2.hxg6 fxg6 3.f6 a2 4.f7 a1D 5.f8D Dxe5 6.Dd6+ Rxd6
  ²  (0.39)   Profondeur: 8/16   00:00:01  10kN, tb=71
1...a3 2.e6 fxe6 3.fxg6 a2 4.g7 a1D 5.g8D De5 6.Rd3
  =  (0.09)   Profondeur: 8/16   00:00:01  13kN, tb=79
1...gxh5 2.e6 fxe6 3.f6 a3 4.f7 a2 5.f8D a1D 6.Dd6+ Rxd6
  =  (0.08)   Profondeur: 8/16   00:00:01  15kN, tb=79
1...gxh5 2.gxh5 a3 3.Rb3 Rd5 4.e6 fxe6 5.fxe6 Rxe6 6.Rxa3
  =  (-0.01)   Profondeur: 8/16   00:00:01  15kN, tb=79
1...gxh5 2.gxh5 a3 3.Rb3 a2 4.Rxa2 Rd7 5.e6+ Re7 6.exf7 Rxf7
  ²  (0.45)   Profondeur: 9/13   00:00:01  16kN, tb=112
1...gxh5 2.gxh5 a3 3.Rb3 a2 4.Rxa2 Rd5 5.e6 fxe6 6.f6
  ²  (0.52)   Profondeur: 9/15   00:00:01  18kN, tb=124
1...g5 2.f6 Rd7 3.e6+ fxe6 4.Rb4 a3 5.f7 a2 6.Rc4
  ²  (0.51)   Profondeur: 9/15   00:00:01  24kN, tb=173
1...g5 2.f6 Rd7 3.e6+ fxe6 4.Rc5
  =  (0.11)   Profondeur: 9/15   00:00:01  25kN, tb=173
1...g5 2.Rb4 Rd5 3.e6 Re5 4.exf7 Rd5 5.f8D a3 6.Rxa3
  =  (0.11)   Profondeur: 9/15   00:00:01  28kN, tb=173
1...g5 2.Rb4 Rb7 3.Rxa4 Rb6 4.f6 Ra6 5.Rb3 Ra7 6.e6 fxe6
  ²  (0.37)   Profondeur: 10/13   00:00:01  31kN, tb=182
1...g5 2.f6 Rd7 3.e6+ fxe6 4.Rb5
  ²  (0.36)   Profondeur: 10/15   00:00:01  34kN, tb=182
1...a3 2.hxg6 fxg6 3.g5 hxg5 4.f6 a2 5.Rb3
  ²  (0.35)   Profondeur: 10/20   00:00:01  40kN, tb=242
1...a3 2.Rb3 gxf5 3.gxf5 Rd5 4.e6 Rd6 5.exf7 Re7 6.Ra2 Rxf7 7.Rxa3
  =  (0.01)   Profondeur: 10/20   00:00:02  44kN, tb=323
1...a3 2.Rb3 gxf5 3.gxf5 Rd5 4.e6 Rd6 5.exf7 Re7 6.Ra2 Rxf7 7.Rxa3
  =  (0.01)   Profondeur: 11/25   00:00:02  60kN, tb=473
1...g5 2.f6 Rd7 3.Rc3 a3 4.e6+ fxe6 5.f7 a2 6.f8D a1D+ 7.Rb3
  =  (0.00)   Profondeur: 11/25   00:00:02  64kN, tb=473
1...g5 2.f6 Rd7 3.e6+ fxe6 4.Rc5
  ³  (-0.35)   Profondeur: 11/25   00:00:02  65kN, tb=473
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Ra3 e5 6.Rxa4 Re6 7.Rb4 Rxf6 8.Ra4
  µ  (-0.89)   Profondeur: 11/25   00:00:02  78kN, tb=474
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.fxe6 Rxe6 5.Rc5 Re5 6.Rb5 Rf4 7.Ra6 Rxg4
  µ  (-1.14)   Profondeur: 12/27   00:00:02  93kN, tb=505
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.fxe6 Rxe6 5.Rc5 Re5 6.Rb5 Rf4 7.Ra6 Rxg4
  -+  (-1.64)   Profondeur: 12/27   00:00:03  96kN, tb=505
1...g5 2.Rb4 Rd5 3.e6 a3
  -+  (-1.64)   Profondeur: 12/27   00:00:03  99kN, tb=505
1...g5 2.Rb4 Rd5 3.e6 a3 4.Rxa3 Rd6 5.exf7 Re5 6.f8D Rd4
  µ  (-1.39)   Profondeur: 13/16   00:00:03  118kN, tb=562
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.Ra3 exf5 5.gxf5 Rd6 6.Rb4 a3 7.Ra5 Re7
  µ  (-1.39)   Profondeur: 13/26   00:00:03  129kN, tb=562
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.Ra3 exf5 5.gxf5 Rd6 6.Rb4 a3 7.Ra5 Re7 8.f6+ Rxf6
  -+  (-1.64)   Profondeur: 14/20   00:00:03  169kN, tb=662
1...g5 2.Rb4 Rd5 3.e6 a3
  -+  (-1.64)   Profondeur: 14/20   00:00:03  174kN, tb=662
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rxa4 e5 6.Rb4 Re6 7.Rc4 Rf7 8.Rd5 Rxf6
  -+  (-1.54)   Profondeur: 15/29   00:00:03  257kN, tb=744
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rc4
  -+  (-1.79)   Profondeur: 16/23   00:00:04  438kN, tb=894
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 a3 5.f7 a2 6.f8D a1D
  -+  (-1.79)   Profondeur: 16/23   00:00:04  447kN, tb=894
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rxa4 Rd7 6.Rb3 Re8 7.Rb2 Rf7 8.Rc3 Rxf6
9.Rd4 Re7 10.Re5
  -+  (-1.71)   Profondeur: 17/31   00:00:05  659kN, tb=1201
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rxa4 Rd7 6.Rb3 Re8 7.Rc3 Rf7 8.Rd3 Rxf6
9.Re4 Re7 10.Rd4 Rf7 11.Re5
  -+  (-1.49)   Profondeur: 18/33   00:00:08  1919kN, tb=1766
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rxa4 Rd7 6.Rb3 Re8 7.Rc3 Rf7 8.Rd3 Rxf6
9.Re4 Re7 10.Re5 Rf7 11.Rd4 Rf6 12.Re4 Re7 13.Re5 Rf7 14.Rd4 Rf6 15.Re4 Re7
  -+  (-1.44)   Profondeur: 19/35   00:00:21  8206kN, tb=3309
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rxa4 Rd7 6.Rb3 Re8 7.Rc3 Rf7 8.Rd3 Rxf6
9.Re4 Rf7 10.Rd4 Rf8 11.Rc4 Re7 12.Rb5 Rd6 13.Rb4 e5 14.Rb3
  µ  (-1.34)   Profondeur: 20/38   00:01:07  32913kN, tb=5638
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rxa4 Rd7 6.Rb3 Re8 7.Rc3 Rf7 8.Rd3 Rxf6
9.Re4 Re7 10.Re5 Rd7 11.Rf6 Rd6
  -+  (-1.43)   Profondeur: 21/38   00:03:36  121877kN, tb=10421
1...g5 2.Rb4 Rd5 3.e6 fxe6 4.f6 Rd6 5.Rxa4 Rd7 6.Rb3 Re8 7.Rc3 Rf7 8.Rd3 Rxf6
9.Rd4 Rf7 10.Re4 Re8 11.Rd3 Re7 12.Rd4 Rf7 13.Re4 Re8 14.Rd3 Re7 15.Rd4 Rf7
  -+  (-1.44)   Profondeur: 22/42   00:03:49  123662kN, tb=15695




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