Author: Ed Schröder
Date: 02:25:52 08/03/99
Go up one level in this thread
>Posted by leonid on August 02, 1999 at 21:23:37: > >>IMHO low-brain fast-searches like DB vs Kasparov have proved it is better to >>forget about trouble makers and exceptions and just go for the brute force >>approach. Fast and dumb rules. Forget about exceptions they are waste of >>time. >>You spend all clock cycles and programmer time on worrying about >>exceptions and then you are full of bugs. >> >>Ciao >> >>Mark >> >> >>> >>>And because of today's fast computers the exceptions fade away as for >>>example the Cray Blitz position is seen by Rebel in 0.5 second. >>> >>>Ed Schroder > >I really agree with what was said obove. Now on very quick computers Rebel >10 can see by "brute force" 6 plys ahead in just one or two seconds. Some >less superficial revision of the moves but with "fixed horizon" can lead up >to 10 or even 12 plys deep. This way of searching the move is best >that some other method that care too much about exceptions. Exceptions >that take that much space to care about and can produce anyway very >suspicious result. > >Leonid. I do not agree with was has been said above except what has been said by myself of course :-) If you have a commercial program and playing a 40/2:00 game for instance you can not afford to think 6 minutes (or worse) on a simple recapture as people are going to laugh on the stupidness of the silicon. So you are forced to come up with some intelligent software that handles forced moves. This means you are going to have to deal with all the exceptions. No choice. Ed Schroder
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