Author: Kurt Utzinger
Date: 23:24:03 01/18/04
Go up one level in this thread
On January 18, 2004 at 17:58:26, Dieter Buerssner wrote:
>On January 18, 2004 at 15:59:46, Ricardo Gibert wrote:
>
>>On January 18, 2004 at 15:40:47, Kurt Utzinger wrote:
>>>14+ 01:54 -2.63 Ke8 Qc4 Kd7 Rd1+ Ke8 Rd5
>>
>>The -2.63 score of the last PV starting with Ke8 got me curious. How come so
>>negative? But then I noticed that the last move Rd5 is nonsense. What happened
>>to Yace here?
>
>Note the "14+". This means, that the engine reported a score as "lowerbound". It
>was outside the search window. Many (most) engines will not show a PV in this
>case at all. Yace tries to show something - often it is stupid (by design). I
>thought, it is better than nothing. To have the typical output of other engines,
>just ignore any PV after depth+/depth-. I did not look at this specific PV. It
>should mean, however "I guarantee you, that with depth 14, I will get a score
>not worse than -2.63. How much better the score will turn out, I don't know yet.
>The PV fragment I show here, should be enough to convince you, that my score
>really is better than -2.63. This does not mean, that for examply Rd5 is the
>best move. But it should mean, I tried all moves (instead of Rd5), and no one
>helped to bring the score back to -2.64 for the opponent.
>
>Regards,
>Dieter
Hi Dieter
Many thanks for your interesting explanation that will help
us to better understand what's your engine is doing.
Kurt
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.