Author: Ricardo Gibert
Date: 04:30:26 09/16/04
Go up one level in this thread
On September 15, 2004 at 23:16:05, Jon Dart wrote: >> Qd1 is an inferior -- > >> after Qd1+ Kg2 Qg1+ Kf3 -- you are back to the starting position and Qf1+ is >> clearly best...looks like a bug in Arasan > >There is no penalty here for repeating the position once. If a mate score was >found things are different, since the score encodes the distance to mate. But >without that, Arasan doesn't know that a farther away gain of material is any >worse than a nearer gain. > >--Jon A "horizon effect" possibility would indicate this to be a bug unless you have some other way of dealing with them. Wouldn't such repetitions have the effect of diluting the strength of the engine by inflating the depth analyzed by 4 ply or more in many of the lines arasan analyzed? I would think such a thing would be worth avoiding.
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