Author: Louis Fagliano
Date: 14:52:59 03/10/04
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On March 10, 2004 at 16:12:51, Anson T J wrote: >On March 10, 2004 at 15:53:36, Louis Fagliano wrote: > >>Is there something wrong with Shredder’s book in game 26? Look at the game (now >>in progress at the time of this posting). Why did it open up with 1. e4 e6 2. >>Qe2 c5 3. g3 Nc6 4. Nf3 g6 5. d3 Bg7 6. h4? A rather bizarre opening that gives >>White less than nothing. It was out of book by move 5. d3. Is Shredder book >>accidentally set on a wide variety or“fun” level or even accidentally turned >>off? > >I assure you both books are on their strongest settings. On round 18, Junior >playing black got a nice position playing the french defence. Shredder managed >to draw but perhaps learnt not to play mainline French as white so went for 2. >Qe2 this time around. It had a probability of 27.2. > >The rest of the moves are just the top lines in the Shredder8 book. > >http://homepage.ntlworld.com/ansonwilliams/chess/junior8test/shredder8book.jpg >http://homepage.ntlworld.com/ansonwilliams/chess/junior8test/shredder8book2.jpg >http://homepage.ntlworld.com/ansonwilliams/chess/junior8test/round19.jpg >http://homepage.ntlworld.com/ansonwilliams/chess/junior8test/round20.jpg There seems to be a problem with how some of these programs "learn". You said that "On Round 18, Junior, playing Black, got a nice position playing the French Defence", and now when I look at Shredder's learned adjustments it is now NEVER going to play 2. d4 after 1. e4 e6. That's ridiculous. Whatever nice position Junior got playing the French, 2. d4, could not possibly be the cause for defeat! It's probably something around moves 10-18 or so that White played something inferior. 2. d4 is not most certainly not a mistake in the French! I noticed this among all ChessBase playing programs in the CB GUI. Whenever they win or lose and "learning" is enabled, they pick the first or second move of the game to "adjust". For example, if any ChessBase playing program loses as White in the Ruy Lopez, it will cease playing 1. e4(!) Something is wrong here. The ChessBase playing program should be looking much further down the road in it's book, starting with the last book move and working backward looking for suspected inferior book moves. This doesn't seem to happen. Anyone else notice that?
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