Author: William Penn
Date: 03:33:47 03/01/06
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On March 01, 2006 at 05:18:45, Vasik Rajlich wrote: >On February 28, 2006 at 22:04:54, William Penn wrote: > >>I've always used infinite mode for analysis. I've never used any other time >>control. And when it comes to books, I just look at their data in the window >>pane and make my best judgement, all things considered. >> >>Now enters a book where I would like to know which move it would play >>automatically (the new Rybka book) and I feel lost. I've never tried to >>determine that before. Infinite mode won't work for this. >> >>I set up everything per instructions in the readme file, but still I don't see >>how to get it to make the book move so I can see it. Of course I'm using the >>Chessbase/Fritz GUI (from Shredder 8). The best notion I have come up with is to >>set the time control for a "fixed time". >> >>So I load a correspondence game in progress that's still in the opening phase >>and try to determine what move the Rybka book would play here. I presume that >>when it starts thinking, it will play book moves immediately, which is how I can >>determine that it's a book move. >> >>But how do I get the engine to start thinking in "fixed time" mode for a >>particular position? Or maybe there's a better way to do this? >> >>I know you're gonna say to read the % column and look at the color of the moves >>(green or red). OK, but that's not the same as seeing the move made on the >>chessboard. I want to see it in action! :) >> >>Also, I came across one instance where I'm puzzled. There were only 2 sample >>games for the move that was played versus many sample games for the alternate, >>both green colored moves, but it played the former. I thought at least 3 sample >>games was necessary for it to play a book move?! >>WP > >To instruct the GUI to play a book move in infinite analysis mode, make sure the >position is on the board, and press the space bar. > >Note that the move played is not always deterministic. The right-most column in >the book pane gives you the % chance that each move will be played. > >Vas Thanks for the clue. It was maybe enuf to get me over the learning hump. :) But actually it doesn't work exactly that way, at least not with my CB/Fritz GUI from Shredder 8... If infinite mode is running, pressing spacebar ignores the book and plays the best move from the analysis so far. However, if the position is on the chessboard and "no mode" is adopted or running, pressing spacebar either: (a) plays the book move, if there is one, and in that case the engine is NOT started thinking, or (b) if there is no book move available, it starts the engine thinking In the case of (b), I don't know for sure what mode it is thinking in. It apparently isn't infinite mode because the little infinite icon on toolbar isn't 'depressed'. Actually I suspect it is in infinite mode, and the GUI just doesn't know it. :) That apparently solves the riddle, subject to more testing. Procedure (a) above determines what move would be played from book, any book, not just Rybka's book (presumably). I'll just have to keep an eye on the Book Option settings (f4) because they didn't stick the first time. WP
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