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Up Topic Rybka Support & Discussion / Rybka Support / Sampled Search changes R4
- - By Dragon Mist (****) Date 2010-05-28 08:57
I note Sampled Search has gone throu some changes in R4, I'm still not quit sure what to say. For instance, refutations along the line examined are now shown in full line whereas with R3 we got only a single move (after infinite sign). Also, and quite unexpectedly, SS window will show other moves being examined, and usually with weird signs (like better is Qc7 better is Rd8, both black moves, no white move, no move number?!) WHILE the above shows R4 is only at say Bb7 2/36, suggesting she is examining Bb7 now, and not Qc7 or Rd8. But the biggest mistery so far to me is the following example:

15 +0.15 10. Nf3 Nf6 11. e4 Nc6 etc

16 +0.17 10. Nf3 Nf6 11. e4 Nd7 etc

17 +0.18 10. Nf3 Nf6 11. e4 Nd7 etc

ok so R4 clearly thinks Nf6 is the answer to her planned 10.Nf3. But, she spends depth 18 search showing only following in SS line:

10.Nf3 f5 11. Bg2 etc. ??? as if f5 is considered to be the main reply to planned Nf3, although the move was never before shown in PV lines??? That's weird. note this is not the case where she did the whole 10.Nf3 Nf6 line checkout and found in the end that there is better 10...f5, it just starts d18 with totally different main line.
Parent - - By Geomusic (*****) Date 2010-05-28 09:25
hash issue?
Parent - By Dragon Mist (****) Date 2010-05-28 09:34
No, I always clear hash before starting infinite.
Parent - - By Uly (Gold) Date 2010-05-29 05:28
AFAIK Sampled Search wasn't tested at all.
Parent - By Dragon Mist (****) Date 2010-05-29 07:58
I kinda see that now, as noone is able to comment almost anything about that. But there are changes, and not much for the better. For instance, the most striking minus is that the development of the new move candidate is not visible at all, only infinite sign, and you wait and hope. With R3, after a while, we could see either ! or --, meaning new candidate is succeeding or not.
Parent - By Vasik Rajlich (Silver) Date 2010-06-04 15:09
Hmmm. This might not be working properly.

Up Topic Rybka Support & Discussion / Rybka Support / Sampled Search changes R4

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