Author: Robert Hyatt
Date: 11:39:09 05/25/98
Go up one level in this thread
On May 25, 1998 at 10:59:50, blass uri wrote: > >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 personally, I would trust Fritz on tactics, but I'd trust Junior on the positional evaluation. I think that this would be an easy position for "self-immolution". White has difficulties in this position. And a program that only looks for active play can easily open the position up and have it explode in its face... the question here is whether to begin to shore up the kingside by over- protecting f2 (among other weak squares) or to try and punch something thru in the center. The queenside seems difficult to crack while black can play g5 and threaten to bring a can-opener to the kindside...
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.