Author: Anthony Cozzie
Date: 13:45:03 06/15/04
Go up one level in this thread
On June 15, 2004 at 16:26:09, Steve Glanzfeld wrote: >On June 15, 2004 at 16:12:30, Vincent Diepeveen wrote: > >>On June 15, 2004 at 16:09:10, Steve Glanzfeld wrote: >> >>>Patzer moves are BAD moves you know :) not those which are chosen for a (bm) >>>test. >> >>Patzer moves are easy looking moves, which in case of the selected positions are >>working. In normal positions they can be indeed be very bad. >> >>If you do not understand this with your limited capabilities, then it will >>indeed be difficult to understand chess. > >No normal program will choose an unusual move (i.e. a queen sac) "out of the >blue" in a normal position. Except, the program is completely broken. > >You guys are argueing as if it would be DOWNRIGHT BAD when a chess program finds >good moves (quickly)... I wonder what a chess program looks like, when it is >based on that philosophy :)) Does it try to avoid the good moves? So, if there's >a lack of success, the chances are good that we have found a major reason here >:) > >Steve Vincent has two points. 1. Ultimately what matters is that the program plays the move on the board. If it takes 1 second or 10 seconds or 1 minute, its not that important, from a game score sense. 2. I could increase Zappa's rating on such a test by 500 points by 1 line of code change: eval += 5*kingsafety(p); There are a number of people here who have experimented with tweaking the settings on commercial engines. Some examples are CM Offset and Rebel Q (I think that was the name). These settings wouldn't play very well in games, but they are good at test suites. As one of the most aggressively tuned engines out there, I'm sure Hydra would get a rating of 5000 on the test :) Test positions will always suck for measuring strength. They are a good way to get started, but once your engine reaches 2200 it is best to ditch them. anthony
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.