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Subject: Re: New test position (positional theme)

Author: blass uri

Date: 07:59:50 05/25/98

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On May 25, 1998 at 05:56:08, Moritz Berger wrote:

>Here's an interesting 'positional' test position:
>
>1k1r4/pp1bb1p1/1qn1p3/3pPr1p/1P6/P4NPP/4BPK1/R1BQ3R w - - 0 19
>
>The (positional) key move is 19.Bb2!! which leads to a clear advantage
>for white (e.g. 19.Bb2 Rc8 20.Nd4 Nxd4 21.Bxd4). 19.b5 only ensures
>equality, 19.Bf4 (actually played by one program) lets black play
>another beautiful key move: 19...h4!
>
>1k1r4/pp1bb1p1/1qn1p3/3pPr1p/1P3B2/P4NPP/4BPK1/R2Q3R b - - 0 19
>
>
>How long do your programs need to play 19.Bb2 and 19...h4 (after
>19.Bf4)? 19...h4 is of course much easier than 19.Bb2.

junior evaluates the position after 19.Bb2 as adventage for black
it suggest 19...h4 with a possible line
20.g4 Rff8 21.Rc1 a6 22.Rc2 Rc8 23.Qd3 g5 24.b5 axb5 25.Qxb5 Qa7
26.Rhc1 Ka8 27.Qd3 Qa4 28.Qe3 Rcd8 29.Qb6 Rf4 30.Bd1 Qa7
31.Qxa7+ Kxa7 32.Be2
when all white moves are suggested by Fritz5 and all black moves by
Junior

fritz5 evaluate the position as something like 1 pawn adventage for
white all
the time while Junior4.6 evaluates the position as somethink like .5
pawn
adventage for black during these moves.
I have no idea who is right(I think we should ask a grandmaster).

Uri



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