Author: Rolf Tueschen
Date: 10:08:33 09/08/02
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On September 08, 2002 at 05:49:01, Peter McKenzie wrote: >On September 08, 2002 at 05:36:13, Gerd Isenberg wrote: > >>On September 07, 2002 at 19:46:49, Peter McKenzie wrote: >> >>>I've been having a break from computer chess post WCCC, but have now started >>>going over some of Warp's games. First up is Warp's worst game, the loss vs >>>Brutus. In this game, Warp showed a total lack of understanding of its >>>centralised king in the early middlegame and lost without a fight. >>> >>>I present here the position after move 21 in the game. White has grabbed a pawn >>>thinking this position is OK, but in reality the white king is hopelessly stuck >>>in the centre. Also, white is passive, black is active and has a safe king, >>>therefore white is totally winning here: >>> >>>[D]r1r3k1/1p3ppp/b5q1/p7/4n3/P3PNB1/1P3PPP/1Q1RK2R b K - 0 1 >>> >>>I am curious what the static evaluation of various programs is here. The >>>version of warp used in Maastricht gives 0.238 in favour of white. Ideally the >>>static evaluation should favour black here I think. >>> >>>cheers, >>>Peter >> >>IsiChess favours black here by 0.67 pawns. >> >>The term is dominated by king safety. But also the e4-knight has a nice score >>and the black queen is more active than the white (0.13 versus -0.13). >> >>The white king becomes a penalty of -1.24 here. >> >>As far as i remember i do consider following things: >> >>Four adjacent king squares are controlled by black (three free squares). >>White King has no move. >>There are two black pieces controlling adjacent king squares. >>There are four black pieces controlling squares with distance two from king. >>Square f1 is attacked and therefore castle is not possible. >>No way to move pawns or light pieces to the a6-f1 diagonal... >>and in this context the lack of white kings bishop. >>There are open and/or halfopen files adjacent to the king. >>File distance between the kings is greater one. >>And as a kind of factor the number of black pieces (specially rooks and queen). > >Thanks Gerd, thats very impressive! But the game is already over here. Don't know who made yor book, but no PC can find the necessary 12.e3. Rd2 is bull. You simply were outbooked in the game. You simply don't have the time to make such nonsense as Rd2. The black Bc4 is a known motif. Without book comps would be easy bully. How coul a comp calculate the later king safety?? Rolf Tueschen > >> >>Regards, >>Gerd
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