Author: Otello Gnaramori
Date: 12:45:23 10/11/02
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On October 11, 2002 at 15:34:54, Roy Eassa wrote: >On October 11, 2002 at 15:26:27, Otello Gnaramori wrote: > >>On October 11, 2002 at 15:00:05, Roy Eassa wrote: >> >>>I have very gradually come around to the idea that what makes a chess computer >>>good against other chess computers may be quite different from what makes it >>>good against strong human chessplayers. >>> >>>Some years ago, PCs were slow enough that the chess author had no choice but to >>>write the program to maximize the search, or else even moderately strong humans >>>could win simply by tactics. But I think now, with PCs over 2 GHz, just 25% of >>>the computer's power is more than sufficient tactically against humans. Against >>>other computers, every ounce of speed must be used to search deeper, as in Fritz >>>or Ruffian. But against humans perhaps the great majority of the power of the >>>CPU needs to be used exclusively to play anti-human chess: avoid locked >>>positions, avoid allowing certain types of attacking formations, "understand" >>>many, many types of positions better, etc. Such a program would likely perform >>>very poorly against the likes of Fritz but could perform much better than Fritz >>>does against top humans. >>> >>>My thought: there should be two totally different classes of chess programs: >>>those that are designed to win against other programs and those that are >>>designed to win against humans. And if you want to create a program that claims >>>to do both, you should have it swap in a completely different set of algorithms >>>-- and not just change a few settings -- depending upon the opponent (human or >>>computer). >> >>Hi Roy, >>I think that this idea isn't completely new to CC, in fact e.g. Rebel by Ed >>Schroeder works in anti-gm mode without decreasing the score against other >>machines. > > >But my thinking is not a simple checkbox or small change to the program, but >rather a completely different set of algorithms. Basically, a completely >different program with entirely different logic. I see your point, but I guess that too much eval complexity (read understanding) is probably negatively impacting on the search speed and depth. This is a topic already debated in this forum. w.b.r. Otello
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