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Subject: Re: Shredder blind?

Author: Günter Müller

Date: 08:30:33 08/13/01

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On August 13, 2001 at 11:22:26, Harald Faber wrote:

>On August 13, 2001 at 11:02:46, Roy Eassa wrote:
>
>>On August 13, 2001 at 03:26:28, Harald Faber wrote:
>>
>>>Following position:
>>>
>>>[D]1rb4r/2p3k1/3b4/4pp2/P1P1P1p1/1N1N2Pq/1PQ3R1/4R1K1 b - - 0 1
>>>
>>>The last white move was Nc5-b3 and Shredder 5.32 felt fine with +0.2 at a search
>>>depth of 10-11 and awaits f5-f4. But Shredder changes its mind very fast after
>>>the next black obvious move. Is Shredder blind? Or are the other programs blind
>>>too? Would a different move than Nc5-b3 have saved the white position?
>>
>>
>>Rebel Tiger II on Athlon 1200 takes under 9 seconds to find ...Rxb3:
>
>Oops, forgot to mention...of course it was GambitTiger 2 who played that move
>with black. :-)
Shredder blind?

Hi
PIII 800Mhz hash=192MB
1rb4r/2p3k1/3b4/4pp2/P1P1P1p1/1N1N2Pq/1PQ3R1/4R1K1 b - - 0 1

Analysis by Gambit Tiger 2.0:

1...f4 2.Nf2 Qh5 3.gxf4 exf4 4.e5 Bf5 5.Qc3
  -+  (-2.30)   Depth: 8   00:00:00  103kN
1...f4 2.Nf2 Qh5 3.gxf4 exf4 4.Qd1 Qh4 5.c5 f3 6.cxd6 fxg2 7.dxc7
  -+  (-3.02)   Depth: 8   00:00:00  156kN
1...f4 2.Nf2 Qh5 3.gxf4 exf4 4.Qd1 Qh4 5.c5 Be7 6.Qd5
  -+  (-2.62)   Depth: 9   00:00:01  266kN
1...f4 2.Nf2 Qh5 3.gxf4 exf4 4.Qd1 Qh4 5.c5 f3 6.cxd6 fxg2 7.Qd4+ Kf8
  -+  (-3.14)   Depth: 10   00:00:03  783kN
1...fxe4 2.Nf2 Qh6 3.c5 Be7 4.Qxe4 Rxb3 5.Qxe5+ Bf6 6.Qxc7+ Kg6
  -+  (-3.30)   Depth: 10   00:00:04  1088kN
1...fxe4 2.Nf2 Qh6 3.c5 Be7 4.Na5 e3 5.Qe4 exf2+ 6.Rxf2 Bf6 7.Ref1 Rf8
  -+  (-2.52)   Depth: 11   00:00:06  1596kN
1...f4 2.Nf2 Qh6 3.gxf4 exf4 4.Nd4 g3 5.b3 Bc5 6.Qc3 Kf7
  -+  (-3.58)   Depth: 11   00:00:12  2849kN
1...Rxb3 2.Qxb3 fxe4 3.Nf2 Bc5 4.Kf1 Rf8 5.Re2 e3 6.Rxe3 Qh1+ 7.Rg1 Rxf2+ 8.Kxf2
Qf3+ 9.Ke1 Bxe3
  -+  (-4.04)   Depth: 11   00:00:13  3239kN
1...Rxb3 2.Qxb3 fxe4 3.Nf2 Bc5 4.Kf1 Rf8 5.Re2 e3 6.Rxe3 Qh1+ 7.Rg1 Rxf2+ 8.Kxf2
Qf3+ 9.Ke1 Bxe3
  -+  (-4.04)   Depth: 12   00:00:16  3906kN
1...Rxb3 2.Qxb3 fxe4 3.Nf2 Bc5 4.Kf1 Rf8 5.Re2 e3 6.Rxe3 Qh1+ 7.Rg1 Rxf2+ 8.Kxf2
Qf3+ 9.Ke1 Bxe3
  -+  (-4.04)   Depth: 13   00:00:21  5252kN
1...Rxb3
  -+  (-4.94)   Depth: 14   00:00:48  11812kN
1...Rxb3
  -+  (-4.94)   Depth: 15   00:01:08  16747kN
1...Rxb3 2.Qxb3 fxe4 3.Nf2 Bc5 4.Re3 Qh6 5.Qc3 Bd4 6.Qe1 Bxe3 7.Kf1 Be6 8.b3 Rb8
9.Qc3
  -+  (-5.74)   Depth: 15   00:01:30  22495kN
1...Rxb3 2.Qxb3 fxe4 3.Nf2 Bc5 4.Re3 Qh6 5.Qc3 Bd4 6.Qe1 Bxe3 7.Kf1 Be6 8.b3 Rb8
9.Qc3 Bd4
  -+  (-5.74)   Depth: 16   00:02:22  35705kN
1...Rxb3 2.Qxb3 fxe4 3.Nf2 Bc5 4.Re3 Qh6 5.Qc3 Bd4 6.Qe1 Bxe3 7.Kf1 Rf8 8.Kg1
Rf3 9.b4 Bb7 10.Qe2
  -+  (-6.00)   Depth: 17   00:06:20  96741kN

(, home 13.08.2001)
MfG
Günter



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