Author: chandler yergin
Date: 04:26:07 01/03/05
Go up one level in this thread
On January 01, 2005 at 19:30:12, Ulysses Omycron wrote: >>The Significant part of the Eval is the first digit! >>It shows Zero! (0.50) That means neither side has an advantage. >>The numbers after the Decimal are in hundredths of a Pawn,and based on >>Static Positional features in a Quiescent Position. These are Programed >>weights given for King Safty, Mobility, Pawn structure, strong/weak squares >>etc. etc. >> > >You are slightly right, but not at all. Closer than you are my friend (Read the Manual!) > >Draw score is 0.00 (Unless you tweak it), that means the Engine knows it's going >to draw (Though most of the time the 0.00 goes away after a while). A score >higher or lower than 0.00 means someone has an advantage... Even an advantage >of 0.10 (1/10 of a pawn) doesn't mean draw. At that point in time it does! As I pointed out; the 0.xx is based on Static positional programed weights! The slight = or - simpy means either White or Black has better King safty, mobilty better pawn structure etc. etc. The Significant point is the 1st digit! Until that shows a + 1.xx or - 1.xx or better; neither side has an advantage. Consider it a Draw! Even a Win is not certain until a + 3.00 or a -3.00 or better is reached. > >I think the main poster wanted to know if any engine give the CORRECT score of >0.00 and not something lower (Black has advantage) or higher (White has >advantage). He probably did.. he simply doesn't understand. You CANNOT say CORRECT SCORE! The engine evaluates based on how it is programmed. There is also a 'contempt' factor which can be programmed in. With pieces on the Board; one of them usually has slightly better, though not decisive, static positional features, as determined by the Programmer. Different engines will evaluate a position differently based on these factors. > >If 0.50 meant neither side has advantage, then an engine could pick any move at >random as long as it doesn't goes below/avobe the 0.50 margin to give the enemy >advantage. There maybe several moves that the engine evaluates the same; and will select the 1st one examined then. They wouln't since they'd lose, just try it in CB's friendly mode in >where choosing 0.50 has this effect, 1.00 is just slightly better than 0.99, >0.99 doesn't mean "neither side has an advantage" Yes it DOES! When you get to + 1.0 or - 1.0, then and only than does one have a pawn advantage! Read the Manual. just as 0.50, 0.49, or 0.51 >doesn't mean either. > >Best Regards. Sorry.. read the Manual!
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