Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Buggy eval from shredder 8

Author: Vincent Lejeune

Date: 07:27:21 09/18/04

Go up one level in this thread


I suspect this is a bug from a penalty due to "trojan horse" concept : h file
get open with rook and queen on this file ...

Anyone can confirm ?  Stefan Meyer-Kahlen ? :>


On September 18, 2004 at 10:19:00, Vincent Lejeune wrote:

>
>[d]2k4r/1pp2pp1/pbp5/7p/1P2P1bq/5P1P/P1PQ1P2/1RB1R1K1 w - - 0 17
>
>Analysis by Shredder 8:
>...
>17.fxg4 Dg3+ 18.Rf1 Dxh3+ 19.Re2 hxg4 20.Df4 Dc3 21.Dxf7 Dxc2+ 22.Fd2 Dxe4+
>  -+  (-1.95)   Profondeur: 6/15   00:00:00
>17.fxg4 Dg3+ 18.Rf1 Dxh3+ 19.Re2 hxg4 20.Df4 Dc3 21.Dxf7 Dxc2+ 22.Fd2 Dxe4+
>23.Rf1
>  -+  (-1.95)   Profondeur: 6/15   00:00:00
>17.fxg4 Dg3+ 18.Rf1 Dxh3+ 19.Re2 hxg4 20.Df4 Dc3 21.Fd2 Dxc2 22.Dxf7 Dxe4+
>23.Rf1
>  -+  (-1.95)   Profondeur: 7/21   00:00:00  28kN
>17.fxg4 hxg4 18.Te3 g3 19.Fb2 Dxh3 20.Tbe1
>  -+  (-2.20)   Profondeur: 8/25   00:00:00  92kN
>17.fxg4 hxg4 18.Te3 g3 19.Fb2 Dxh3 20.Txg3 Dxg3+ 21.Rf1
>  -+  (-2.70)   Profondeur: 8/25   00:00:00  113kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dxc2 23.Db3
>  -+  (-3.83)   Profondeur: 8/30   00:00:00  158kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh1+ 23.Rf4
>Th5 24.c4 Dxc1 25.Txc1
>  -+  (-3.59)   Profondeur: 9/30   00:00:00  277kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh5+ 23.Rf4
>Th6 24.Dd3 Tf6+ 25.Re3 Tf3+ 26.Rd4 Txd3+ 27.cxd3
>  -+  (-3.84)   Profondeur: 10/36   00:00:01  454kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh5+ 23.Rf4
>Th6 24.e5 Dg4+ 25.Rxg4 Th4+ 26.gxh4
>  -+  (-3.84)   Profondeur: 10/36   00:00:01  540kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh5+ 23.Rf4
>Th6 24.e5 Dg4+ 25.Rxg4 Th4+ 26.gxh4
>  -+  (-3.59)   Profondeur: 11/35   00:00:02  834kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh5+ 23.Rf4
>g5+ 24.Re5 Td8 25.Dxg5 Dd1
>  -+  (-3.59)   Profondeur: 11/35   00:00:02  1004kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh5+ 23.Rf4
>f5 24.Dd3 Dg4+ 25.Re5 Td8 26.Df1 Dxg3+ 27.Df4 Dc3+ 28.Rxf5
>  -+  (-3.84)   Profondeur: 12/37   00:00:04  1473kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Dd3 Dh2+ 22.Rf1 Td8 23.De2
>Dh1+ 24.Rf2 Td1 25.Dc4 Tf1+ 26.Dxf1 Dg2+ 27.Dxg2
>  -+  (-3.85)   Profondeur: 12/40   00:00:07  2550kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh5+ 23.Rf2
>Dd1 24.Dd3 Th2+ 25.Re3 Dg1+ 26.Rf4 Df2+ 27.Rg4 g6 28.Ff4 f6 29.c4 Dxf4+ 30.gxf4
>f5+ 31.exf5
>  -+  (-3.60)   Profondeur: 13/40   00:00:12  4781kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh5+ 23.Rf2
>Dd1 24.Dd3 Th2+ 25.Re3 Dg1+ 26.Rf4 Df2+ 27.Rg4 g6 28.Ff4 f6 29.c4 Dxf4+ 30.gxf4
>f5+ 31.exf5
>  -+  (-3.59)   Profondeur: 13/42   00:00:15  5889kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 f5 23.Fb2
>Dxc2 24.Fxg7 Th7 25.exf5 Dxf5+ 26.Re2 Dc2+ 27.Rf1 Dxb1+ 28.De1 Dxe1+ 29.Rg2
>  -+  (-3.83)   Profondeur: 14/48   00:00:32  12282kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 f5 23.Fb2
>Dxc2 24.Fxg7 Tg8 25.Tc1 fxe4+ 26.Dxe4 Rb8 27.Txc2 Tf8+ 28.Fxf8
>  -+  (-3.81)   Profondeur: 15/45   00:00:46  18002kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 f5 23.Df2
>Dh1+ 24.Re3 Dxe4+ 25.Rd2 Th3 26.Fb2 g6 27.Te1 Dxb4+ 28.Rc1 Dd6 29.De3 Dxg3
>30.Dxg3
>  -+  (-3.56)   Profondeur: 16/49   00:01:17  30874kN
>17.fxg4 hxg4 18.Te3 g3 19.fxg3 Fxe3+ 20.Dxe3 Dxh3 21.Rf2 Dh2+ 22.Rf3 Dh1+ 23.Rf4
>Th6 24.e5 g5+ 25.Rf5 Df1+ 26.Re4 Dc4+ 27.Dd4 Dxc2+ 28.Dd3 Dg2+ 29.Df3 Dxa2
>30.Dxf7 Dxf7 31.Fxg5
>  -+  (-3.56)   Profondeur: 16/51   00:02:08  52130kN
>
>
>This -3.56 is totally unrealistic, even Shredder is unable to find a score lower
>than -1.00  in folling moves !!!
>
>the game :
>
>[Event "Blitz:2'"]
>[Site "MyTown"]
>[Date "2004.09.17"]
>[Round "?"]
>[White "Pierre"]
>[Black "Vin"]
>[Result "*"]
>[PlyCount "41"]
>
>1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. d3 h5 7. Nbd2 Qf6 8.
>Re1 Bc5 9. Rb1 Ne7 10. b4 Bb6 11. h3 Ng6 12. d4 O-O-O 13. dxe5 Nxe5 14. Qe2
>Rxd2 15. Qxd2 Nxf3+ 16. gxf3 Qh4 17. fxg4 hxg4 18. Re3 g3 19. fxg3 Bxe3+ 20.
>Qxe3 Qxh3 21. Kf2 *



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.