Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Forced moves

Author: blass uri

Date: 01:10:46 08/04/99

Go up one level in this thread



On August 03, 1999 at 17:31:45, Bo Persson wrote:

>On August 03, 1999 at 01:35:29, J. Wesley Cleveland wrote:
>
>>On August 02, 1999 at 20:21:10, Robert Hyatt wrote:
>>
>[...]
>>>This is exactly the sort of approach that killed me in 1981.  Because all of
>>>the other moves look bad when compared to the 'best' move.  Because the best
>>>move wins a piece instantly.  None of the other moves appear to do so.  And
>>>they _never_ do so.  But if you search this 'best' move long enough you realize
>>>it loses, and then the other moves are better...
>>
>>This is not quite the same. The other moves in your example are only relatively
>>bad, not absolutely bad. If all the other moves lose anyway, it does not matter
>>if the one move loses or not, you can just make it and hope for the best.
>
>The problem here is that the "obviuos" move wasn't good at all, it was really,
>really bad! The "best" move seems to win a piece at a quick search, but a full
>search will show that you get mated!
>
>The other moves might loose a piece, but you are still in the game! You never
>get to use the time saved by a quick response if you are mated a few moves
>later!

If you are mated a few moves later in 1 game out of 1000 and save time in 999
games out of 1000 then you usually use the time you save by a quick response and
earns more than you lose.

In cases that the "obvious" move is wrong you often can suspect that it is wrong
because you discover a big drop in the evaluation of the move so you should play
faster obvious moves only if there is no big drop in the evaluation.

Uri



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.