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Subject: Re: tough position

Author: Yar

Date: 08:27:35 01/18/05

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Analysis by Shredder 8:
1.Rxe7 fxg5 2.e5 Na6 3.Qxg5 Rab8 4.Qh4 Qxf2+ 5.Qxf2 Bxf2+ 6.Kxf2 Nc5 7.Ra1 a6
8.Kg3 Rb3 9.Rc1 Rc8 10.Rc4 h5 11.Ra7 Rxf3+ 12.gxf3 h4+ 13.Kxh4 g5+ 14.Kxg5
  ²  (0.49)   Depth: 19/54   00:36:06  702738kN
1.Rxe7 fxg5 2.e5 Na6 3.Qxg5 Rab8 4.Qh4 Qxf2+ 5.Qxf2 Bxf2+ 6.Rxf2 Nc5 7.Rc2 Rd7
8.Rxd7 Nxd7 9.e6 Nb6 10.Rc7 Re8 11.Bd1 a5 12.Bb3 a4 13.Ba2
  ²  (0.59)   Depth: 20/56   00:59:35  1162453kN
1.Rxe7 fxg5 2.e5 Na6 3.Qxg5 Rab8 4.Qh4 Qxf2+ 5.Qxf2 Bxf2+ 6.Rxf2 Rb1+ 7.Rf1
Rxf1+ 8.Kxf1 Nb4 9.Rxa7 Re8 10.Ra4 Nd3 11.e6 Nc5 12.Ra7 Nxe6 13.Bd5 Kh8 14.Kf2
Nf4 15.Bc6
  ²  (0.46)   Depth: 21/58   01:43:43  1965082kN
1.Rxe7 fxg5 2.e5 Na6 3.Qxg5 Rab8 4.Qh4 Qxf2+ 5.Qxf2 Bxf2+ 6.Kxf2 Nc5 7.Kg3 a5
8.Ra7 a4 9.Rc1 Rd7 10.Rxd7 Nxd7 11.e6 Nf6 12.Ra1 Kf8 13.Rxa4 Rb6
  ²  (0.52)   Depth: 22/61   03:14:03  3788359kN
1.Rxe7 fxg5 2.e5 Na6 3.Qxg5 Rab8 4.Qh4 Qxf2+ 5.Qxf2 Bxf2+ 6.Kxf2 Nc5 7.Kg3 a6
8.Rc1 Rbc8 9.Rc4 h5 10.Ra7 Re8 11.Bd5+ Kh8 12.e6 Red8 13.Bb7 Nd3 14.Bxc8
  ²  (0.68)   Depth: 23/63   06:33:08  7894121kN
1.Rxe7 fxg5 2.e5 Na6 3.Qxg5 Rab8 4.Qh4 Qxf2+ 5.Qxf2 Bxf2+ 6.Kxf2 Nc5 7.Kg3 a6
8.Rc1 Rb5 9.Be2 Ra5 10.Bc4+ Kh8 11.Kf2 Rc8 12.Rd1
  ±  (0.71)   Depth: 24/65   12:03:49  14706428kN

>On January 17, 2005 at 00:51:31, Will Singleton wrote:
>
>>[d]rn1r2k1/pR2p2p/5pp1/6B1/3bP3/5B2/q4PPP/2Q2RK1 w - -
>>
>>pv is e5 fxg5 Rxe7! Na6 Qxg5 giving white about +0.50 to +0.80.
>>
>>I'm not sure any program can find the right pv and score.  This is from a game
>>today on ICC (Amateur-Hossa); Amateur actually played e5, but after fxg5, played
>>the inferior Rb4.  The position after e5 fxg5 is also hard.
>>
>>btw, Bd1 doesn't work due to Kh8.
>
>I think Shredder find the same solution but with transposition ( 1.Rxe7 fxg5
>2.e5 Na6 instead of e5 fxg5 Rxe7! Na6) after 3:02 on an AMD barton@3000+
>
>rn1r2k1/pR2p2p/5pp1/6B1/3bP3/5B2/q4PPP/2Q2RK1 w - - 0 1
>
>Analysis by Shredder 8:
>...
>1.Txe7 fxg5 2.e5 Ca6 3.Fxa8 Txa8 4.Tb7 Fxe5 5.Dxg5
>  =  (0.01)   Profondeur: 8/20   00:00:00  51kN
>1.Txe7 fxg5 2.e5 Ca6 3.Fxa8 Fxf2+ 4.Txf2 Td1+ 5.Dxd1 Dxf2+ 6.Rxf2
>  =  (0.01)   Profondeur: 8/20   00:00:00  74kN
>1.Fd1 Rh8 2.Fe3 Fxe3 3.Dxe3 Cc6 4.Fb3 Dd2 5.Dc5
>  =  (0.02)   Profondeur: 8/20   00:00:00  85kN
>1.Fd1 Rh8 2.Fe3 Fxe3 3.Dxe3 Cc6 4.Fb3 Dd2 5.Dc5
>  =  (0.02)   Profondeur: 8/20   00:00:00  85kN
>1.Fd1 Rh8 2.Fb3 De2 3.Txe7 fxg5 4.Dc7 Cd7 5.Txd7 Txd7 6.Dxd7 Dxe4
>  =  (-0.10)   Profondeur: 9/20   00:00:00  155kN
>1.Fe3 De6 2.Fxd4 Txd4 3.e5 a5 4.exf6 Dxf6 5.Dc8+ Df8 6.Dc3
>  =  (-0.09)   Profondeur: 9/22   00:00:00  274kN
>1.Fe3 Fxe3 2.Dxe3 De6 3.e5 Tc8 4.Da3 Cd7 5.exf6 exf6 6.Td1
>  =  (0.18)   Profondeur: 9/22   00:00:00  329kN
>1.Fe3 Fxe3 2.Dxe3 Cc6 3.e5 Cxe5 4.Txe7 Te8 5.Txe8+ Txe8 6.Fd5+ Dxd5 7.f4 Rh8
>8.fxe5
>  =  (-0.07)   Profondeur: 10/25   00:00:01  468kN
>1.Fe3 Fxe3 2.Dxe3 Cc6 3.Tc1 Tab8 4.Txb8 Txb8 5.Txc6 Dxf2+ 6.Rxf2
>  =  (-0.07)   Profondeur: 10/25   00:00:01  520kN
>1.Fe3 Fxe3 2.Dxe3 Cc6 3.Fd1 Dd2 4.Fb3+ Rh8 5.Fd5 Dxe3 6.fxe3 Tdc8 7.Tc1 Ce5
>8.Txc8+ Txc8 9.Txa7
>  =  (-0.21)   Profondeur: 11/24   00:00:02  927kN
>1.Fd1 Rh8 2.Fb3 Da6 3.Txe7 Cd7 4.Te6 Da1 5.Dxa1 Fxa1
>  =  (-0.20)   Profondeur: 11/24   00:00:03  1066kN
>1.Fd1 Rh8 2.Fb3 De2 3.Txe7 fxg5 4.Dc7 Cd7 5.Txd7 Txd7 6.Dxd7 Dxe4 7.Df7
>  =  (0.05)   Profondeur: 11/24   00:00:03  1177kN
>1.Fd1 Rh8 2.Fb3 Db2 3.Dxb2 Fxb2 4.Fd5 Fd4 5.Txe7 Txd5 6.exd5 fxg5 7.Td1 Fg7
>  =  (0.14)   Profondeur: 12/26   00:00:05  1733kN
>1.Fd1 Fb6 2.Fh6 Rf7 3.Fe3 De6 4.Fxb6 axb6 5.Dh6 Rg8 6.Fb3 Dxb3 7.Txe7 Td3
>8.Dxh7+ Rf8
>  ²  (0.36)   Profondeur: 13/28   00:00:10  3539kN
>1.Fd1 Rh8 2.Fb3 Da5 3.Fe3 Dc3 4.Fxd4 Dxd4 5.Td1 a5
>  ²  (0.60)   Profondeur: 14/40   00:00:19  6749kN
>1.Fd1 Rh8 2.Fb3 Da5 3.Fh6 Dc5 4.Dd2 Cd7 5.Tc1 Dd6 6.Dg5 fxg5 7.Txa7 Txa7
>  ²  (0.36)   Profondeur: 15/32   00:00:28  10072kN
>1.Fd1 Rh8 2.Fb3 Da5 3.Fh6 Dc5 4.Dd2 Cd7 5.Tc1 Dd6 6.Fd5 Cc5 7.Tbb1 Fxf2+ 8.Rxf2
>Df4+ 9.Fxf4
>  ²  (0.61)   Profondeur: 16/34   00:00:54  19039kN
>1.Fd1 Rh8 2.Fb3 De2 3.Txe7 fxg5 4.Dc7 Cd7 5.Txd7 Txd7 6.Dxd7 Dxe4 7.Fd5 Dd3
>8.Dxa7 Txa7 9.Fe4
>  ²  (0.61)   Profondeur: 16/34   00:00:59  20899kN
>1.Fd1 Rh8 2.Fb3 De2 3.Txe7 fxg5 4.Dc7 Cd7 5.Txd7 Txd7 6.Dxd7 Dxe4 7.Fd5 Dd3
>8.Dxa7 Txa7 9.Fe4 Dxe4
>  ²  (0.36)   Profondeur: 17/38   00:01:38  34829kN
>1.Fd1 Rh8 2.Fb3 De2 3.Txe7 fxg5 4.Fd5 Ca6 5.Fc4 Db2 6.Dxb2 Fxb2 7.Fxa6 Td6 8.Tb7
>Fg7 9.Fc4 a5 10.Te1
>  =  (0.02)   Profondeur: 17/40   00:02:01  43377kN
>1.Txe7 fxg5 2.e5 Ca6 3.Dxg5 Tab8 4.Dh4 h6 5.De4 Rf8 6.Dxg6 Fxf2+ 7.Txf2 Tb2
>8.Txa7 Tb6
>  =  (0.03)   Profondeur: 17/45   00:03:02  66228kN
>1.Txe7 fxg5 2.e5 Ca6 3.Dxg5 Tab8 4.Dh4 h6 5.De4 Rf8 6.Dxg6 Fxf2+ 7.Txf2 Tb2
>8.Txa7 Tb6 9.Txa2 Td7 10.Dxb6
>  ²  (0.38)   Profondeur: 17/46   00:03:29  76831kN
>1.Txe7 fxg5 2.e5 Ca6 3.Dxg5 Tab8 4.Dh4 Dxf2+ 5.Dxf2 Fxf2+ 6.Txf2 Cb4 7.e6 Tb6
>8.Te2 a5 9.Ta7 Te8 10.e7 Rf7 11.Tf2 Tf6 12.Tf1
>  ²  (0.45)   Profondeur: 17/51   00:06:24  137729kN
>1.Txe7 fxg5 2.e5 Ca6 3.Dxg5 Tab8 4.Dh4 Dxf2+ 5.Dxf2 Fxf2+ 6.Rxf2 Cc5 7.Ta1 a6
>8.Rg3 Tb4 9.Tc7 Tc4 10.Ta7 h5 11.h4 Rf8 12.Fe2 Tc3+ 13.Ff3
>  ²  (0.44)   Profondeur: 18/53   00:10:34  226518kN



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