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Subject: Re: Testposition - Good Night Bad Bishop

Author: Enrique Irazoqui

Date: 08:39:18 02/25/01

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On February 25, 2001 at 11:17:38, Sune Larsson wrote:

>
>  [D]8/5b2/1k2p1p1/2NpP1P1/1K1P4/8/8/8 w - - 0 1
>
>
>  In this position white's knight is far superior to black's bishop. This is
>  very old knowledge and white is winning this one. People that play French
>  as black might have nightmares of positions like this. The black bishop
>  can only defend the two weak pawns on e6,g6 or wander around like a ghost
>  on the white squares.
>
>  These are the evals from some programs - PIII 800 - 3 min thinking time.
>  The higher +score the better. Remember, white has a won position.
>  And it's about evaluating a superior horse vs a bad, bad bishop.
>
>  [1.Na4+ Kc6 2.Ka5 Kb7 3.Nc5+ Kc7 (3.-Ka7 4.Kb5 Be8+ 5.Kb4 Bf7 6.Ka5 Bg8 7.Kb5)
>   4.Kb5 Be8+ 5.Ka6 Bf7 6.Nb7 Be8 7.Ka7 Bf7 8.Nd6 Bg8 9.Ka6 Kc6 10.Ka5 Bh7
>   11.Nf7 Bg8 12.Nh8 Bh7 13.Ka6 Kc7 14.Kb5 Kb7 15.Kc5 Kc7 16.Nf7 Bg8 17.Nd6 Bh7
>   18.Ne8+ Kd8 19.Nf6 and wins]
>
>
>  1) AnMon 5.07         +1.05
>  2) Deep Fritz         +1.00
>  3) Fritz 6            +0.97
>  3) Nimzo 7.32         +0.97
>  5) Nimzo 8            +0.90
>  6) Phalanx 22         +0.86
>  7) SOS                +0.80
>  8) Crafty 18.01       +0.54
>  9) CM8K               +0.51
> 10) Hiarcs 7.32        +0.48
> 11) Fritz 5.32         +0.47
> 12) Century 3          +0.43
> 13) Gandalf 4.32g      +0.36
> 14) Junior 6           +0.32
> 15) Junior 5           +0.27
> 16) Gromit 3.1         +0.26
> 17) Chess Tiger        +0.18
>
> Sune

Deep Shredder 5 beta +0.75
Junior 7 beta +0.53

Enrique



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