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From: ugfailau@sunybcs.UUCP (Fai Lau)
Newsgroups: net.games.chess
Subject: Re: Re: Perfect Play?
Message-ID: <2950@sunybcs.UUCP>
Date: Tue, 18-Mar-86 07:18:03 EST
Article-I.D.: sunybcs.2950
Posted: Tue Mar 18 07:18:03 1986
Date-Received: Wed, 19-Mar-86 04:00:50 EST
References: <2916@sunybcs.UUCP> <978@ism780c.UUCP>
Distribution: net
Organization: SUNY/Buffalo Computer Science
Lines: 36

> 
> Since the white queen always has at least fourteen moves, and at most
> three moves can satisfy the above conditions, there are at least 11
> moves better than the ones white plays above.
> 
> Let black respond to these checks by not taking the queen.  There are
> at most four moves available to black, so he can make no move worse
> than fourth best, thus the score of white goes up at least 7 for each
> check in this series.
> 
> Let white include at least two checks in the above series.  Then white
> will have a higher score than black, but still have a won game.  Let both
> sides then switch to perfect play, and white will win with a higher score.
> 
> -- 
> Tim Smith       sdcrdcf!ism780c!tim || ima!ism780!tim || ihnp4!cithep!tim

	This is a perfect case to illustrate what I mentioned in my follow
up to the original article. In this example it is clear that Black
manages to avoid cranking his points up by being in a totally defensive
position where his best choice happens to be his only choice.
It is interesting to note that no matter what kind of scoring
scheme is used or how wide the score gap between White and Black,
White will eventually 'catch up' with Black by using the second best
(not necessary the worst) move strategy to force Black to make the
best (which may often be the only legal) move in every response.
	Well, guess the truly great chess players are not necessary
the ones who make perfect plays, but the ones who can AFFORD
deviations.


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|  Fai  Lau                                                                   |
|  ECE / CS  SUNYAB                                                           |
|  BI: ugfailau@sunybcs                                                       |
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