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Subject: Re: Tactics

Author: Bruce Moreland

Date: 09:44:41 04/18/99

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On April 18, 1999 at 03:50:59, Frank Phillips wrote:

>Thanks.  A most helpful list for one unfamiliar with the well trodden path.  The
>single response extension was a quick hit, solving another 10 of WAC in the same
>time as before.

Null-move forward pruning will help tremendously.  I suggest you try to figure
that out very soon.

>As far unique……… maybe later - much later.   I take your point, but my aim is
>lower.  I was happy enough a while ago when the thing stopped making illegal
>moves.  There was one phase where it had the occasional habit of producing an
>extra piece out of thin air.  Unfortunately WinBoard tended to notice, otherwise
>it could have been a useful extension to its abilities.

Certainly.

The situation with computer chess is that there is a fairly easy set of steps
you can take to get fairly strong.

I think that you have as much right as anyone to do this stuff.

Everyone who does it should think about what they are bypassing by doing this.
Null-move alpha-beta is so good that I think it would be pretty hard to get away
from it once you start doing it.  There could be some other technique that
produces bad results initially, but which is even better if you mess with it for
long enough.

Another idea for you is to get on the chess servers wth your thing as soon as it
is working acceptably with Winboard.  You'll get a lot of games there, it's very
exciting and very fun, and there is a lot of community that you can take
advantage of and contribute to.  The program doesn't have to be strong at all,
in fact, the weakest programs are extremely entertaining for the human players,
since they have a chance of beating them.

bruce



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