Author: Dirk Frickenschmidt
Date: 13:06:21 09/24/98
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On September 24, 1998 at 09:11:36, Amir Ban wrote: Hi Dave and Amir, I read your comments, just a short answer: >On September 24, 1998 at 08:35:36, Dave Gomboc wrote: > >>On September 24, 1998 at 03:07:41, Dirk Frickenschmidt wrote: >> >>>Hi all of you, >>> >>>finally I can return to playing tournament testgames (on two 200MMX machinces >>>with 64Mb each). >>> >>>Although Junior's first game against Fritz5 became a draw, it was a long >>>positional and tactical struggle. >>> >>>In this Meran variation of the Semi-Slav black has the pair of bishops and >>>considerable pressure on the white queenside, while having to handle pawn >>>weaknesses around its king with active play, thus preventing a direct white >>>attack against the black king. Nvertheless white has to try to exploit the black >>>weaknesses, while defending the queenside as long as possible not to suffer from >>>a bad endgame. >>> >>>The black variation is 9... c5 is a typical choice by GM Sveshnikov, who has >>>been using it successfully since 1977 and scored only wins and draws while using >>>it for black. >>> >>>Both programs managed to balance attack and defence jobs very well, and white >>>was gaining some positional advantage during the middlegame. But after the black >>>35....Rxg3 (a move both programs "understood") Junior5 got king weaknesses >>>itself and was not able to gain a decisive advantage in the end. >> >>This was a very interesting game to me. When I played over it without a >>computer crunching on the positions, I thought Black's position was better from >>around 21...c4 through the 35...Rxg3 period. I went back to read your message a >>second time, thinking that I had misread your comments the first time around. >>But no, you said that White had been gaining some positional advantage. I then >>booted up crafty, and it thinks that White's position is pretty good after >>21...c4 (we're talking almost a pawn plus). Are there any programs that agree >>with me? Should they? Maybe I am just completely misevaluating the position? >>I thought that the space advantage was worth a lot, White's rooks were passive, >>and while Black's kingside weakness would probably prevent a win, Black still >>had all the play. Probably that last bit is overly brash, but I am having a >>hard time believing that White's position is actually better! >> >>Dave Gomboc Dave, frankly, I'm no GM and my evaluation just came from my own feelings. I use to switch colours when analyzing games just to get a more concrete feeling I were playing white or black. When I switched to the black position after there were no pawns left guarding "my" king, I felt a bit uneasy. My typical human club-player level perspective was: well, I definitely have a lot of dynamic play. But if I make only one or two weak moves and allow white to bring the heavy white cannons (rooks and queen) into the game, I will not be able to cover all the threats against my "naked" king. It's something else with Fritz5: The program obviously *never* really felt uneasy during thuis game, perhaps with the exception of some moves where its evaluation dropped slightly. It soon 'saw' ...Rxg3 and in fact kind of played for it. It is quite well in handling these kind of positions. But I also saw it lose, walking on a thin line without really knaowing what would happen and how the risk would develop. In this game, I am convinced that without the tactical shot ...Rxg3 it would simply not have survived. But it did, as it does surprisingly often in such positions, showing that human fears (in your case you had none and felt more like Fritz) may be dead wrong and active piece play may be extremely strong. > >It was a typical Junior - Fritz disagreement about king-safety and space issues. >Fritz evaluates them more aggressively and gets excellent results from this. I >think in some positions it over-evaluates, but it's a gamble, just like >accepting a gambit, and you need to be tactically competent to survive in such >positions. > >Amir Yes, I saw this disagreement during some moves in their evaluations. In a way both were right, because both did what they do best, and the draw was completely justified. Nice game despite the draw from my view. Kind regards from Dirk
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