Author: Peter Skinner
Date: 11:49:03 02/27/04
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On February 27, 2004 at 13:54:21, Russell Reagan wrote: >On February 27, 2004 at 13:05:51, Peter Skinner wrote: > >>I suppose I should explain my reasoning for what I have posted. >> >>Ruffian (all versions) seems to use an excessive amount of the time control when >>the score drops due to a missed tactical shot. I have seen Ruffian use as much >>as 45 minutes for one move when the score drops by more than 1 pawn (-1.00). >>Then for the rest of the game, it is short on time, and just plain loses due to >>not being able to search as deep as the opponent during the remaining time >>control. > >I have noticed this also with Ruffian. I can always tell if Ruffian is going to >win a game or lose a game by how much time it has left relative to the opponent. >If Ruffian has a time advantage over the opponent, it's going to win. If Ruffian >is at a time disadvantage, it's going to lose. This holds most of the time. I >noticed the same thing when I watched Ruffian in CCT6. > >I agree with your assessment. Ruffian sees something it doesn't like and it >scrambles to fix the problem by throwing more time at the search. Of course, if >the opponent is good enough to get an advantage over Ruffian, extra time isn't >going to help Ruffian that much usually, so that's why I see Ruffian at a time >disadvantage, and it almost always goes on to lose. I have also noticed that if for some reason Ruffian comes out of book after a bad opening line (and it's book is full of them), it will use as much as 75% of the time control to find out where it went wrong. Of course by then it is lost and really doesn't matter. It is the only program that I know of that does this. I would really like the ability to create my own book for Ruffian. I feel with a better book it may/may not be slightly better. An opening book can only do so much. Peter
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