Author: John Scalo
Date: 18:48:35 01/01/98
Go up one level in this thread
>Hi again, > >After re-reading your post I think I see a problem with the move >ordering you use for captures: > > <small takes big>/<equal exchange>/<big takes small> > >Try this: > > Always sort the biggest victim first and then in the order of > smaller attacker. > >This may seem counter-intuitive but it's proven to be quite good. > >So QxR should get looked at even before PxB even though PxB is an >upcapture. Even though upcaptures seem to be sure winners keep >in mind that in a quies search lots of really silly positions >arise. More often than not the rook in my example is completely >undefended (often it just moved to some square or was involved >in a capture itself and is undefended.) So you would rather >capture a rook than a bishop wouldn't you? In the cases where >the rook is defended the capture search will terminate very >quickly anyway since the capture of the queen will be the very >first move tried on the next level. > >-- Don Yep, this improved overall speed by about 20% in "tactical" positions. Thanks for the tip!
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