Thinker's PV output

[Robert Allgeuer]

Geschrieben von: / Posted by: Robert Allgeuer at 20 February 2004 12:33:25:

What are the units for the position score as output by Thinker 4.5b? It is definitely not in pawn units, in fact it looks like something close to a third of a pawn?
Anybody knows?
Thanks
Robert

[Gábor Szõts]

Geschrieben von: / Posted by: Gábor Szõts at 20 February 2004 12:48:00:
Als Antwort auf: / In reply to: Thinker's PV output geschrieben von: / posted by: Robert Allgeuer at 20 February 2004 12:33:25:

What are the units for the position score as output by Thinker 4.5b? It is definitely not in pawn units, in fact it looks like something close to a third of a pawn?
Anybody knows?
Thanks
Robert

Also, it seems that the depth reached is extremely small. I analyze a position for several minutes (PIII 933 MHz) and it is still at depth 8!
Gábor

[Lance Perkins]

Geschrieben von: / Posted by: Lance Perkins at 20 February 2004 20:15:20:
Als Antwort auf: / In reply to: Thinker's PV output geschrieben von: / posted by: Robert Allgeuer at 20 February 2004 12:33:25:

It is in pawn units. But the score is not just material count. It is that, plus/minus positional score (which in Thinker, is now very agressive).

What are the units for the position score as output by Thinker 4.5b? It is definitely not in pawn units, in fact it looks like something close to a third of a pawn?
Anybody knows?
Thanks
Robert

[Robert Allgeuer]

Geschrieben von: / Posted by: Robert Allgeuer at 20 February 2004 20:31:05:
Als Antwort auf: / In reply to: Re: Thinker's PV output geschrieben von: / posted by: Lance Perkins at 20 February 2004 20:15:20:

It is in pawn units. But the score is not just material count. It is that, plus/minus positional score (which in Thinker, is now very agressive).

What are the units for the position score as output by Thinker 4.5b? It is definitely not in pawn units, in fact it looks like something close to a third of a pawn?
Anybody knows?
Thanks
Robert

I just checked as I have Thinker playing at the moment, but at the moment it is a balanced position, scores around 0.
Anyway, what I saw was that Thinker 4.5b is e.g. a Queen down in the endgame but its score shows -3.xx. I had also situations that Ruffian sees +6 for itself, while Thinker shows -2 and Thinker is already something like a light piece and a pawn behind or similar, where there was certainly no positional compensation. Mate code is also 44 or something, which is at least unusual. I am running it with Winboard 4.2.x.
Robert