Search found 22 matches

by nnnnnnnn
Fri Jul 24, 2020 10:14 pm
Forum: Computer Chess Club: General Topics
Topic: This is still pretty rough ... HONEY-NN release
Replies: 12
Views: 1124

Re: This is still pretty rough ... HONEY-NN release

What do you mean by "puzzle"? Study? Direct-mate? And why would a neural net be good at these? I would have thought that nets would be weaker than pure engines when the solution was purely tactical, as is the case for most compositions, particularly when the winning moves are often ipso facto improb...
by nnnnnnnn
Sat Jul 04, 2020 10:23 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Stockfish has included WDL stats in engine output
Replies: 58
Views: 3873

Re: Stockfish has included WDL stats in engine output

wdl may be just what I need which is to determine the win/loss/draw probability... (In fact I asked exactly this question last week, http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74243 , how to determine when to stop search based on a cp 0 score, and nobody mentioned wdl, which would have sol...
by nnnnnnnn
Thu Jul 02, 2020 5:13 pm
Forum: Computer Chess Club: General Topics
Topic: WDL
Replies: 48
Views: 1948

Re: WDL

As many of know, NN engines have been reporting WDL data with Scoring Percentage for some time. A while back, I took their formula to convert to a centipawn and applied it the centipawn evaluation to come u It is worth noting that Stockfish's WDL is a function of both the evaluation and the current...
by nnnnnnnn
Thu Jul 02, 2020 6:56 am
Forum: Computer Chess Club: General Topics
Topic: WDL
Replies: 48
Views: 1948

Re: WDL

I have not looked at the patch - does it account for the difference between score cp 0 in a table base, which should have associated wdl of wdl 0 1000 0 and score cp 0 in a middlegame position, which is entirely different. (What about when the PV of position not in the tablebase results in a tableba...
by nnnnnnnn
Thu Jul 02, 2020 3:48 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Stockfish has included WDL stats in engine output
Replies: 58
Views: 3873

Re: Stockfish has included WDL stats in engine output

wdl may be just what I need which is to determine the win/loss/draw probability. I had been using heuristics based on score. (In fact I asked exactly this question last week, http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74243 , how to determine when to stop search based on a cp 0 score, and n...
by nnnnnnnn
Mon Jun 22, 2020 2:47 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Java vs C. It's not like one would think.
Replies: 13
Views: 2181

Re: Java vs C. It's not like one would think.

I tried Java a long time ago (long before the Oracle takeover), but I found it awkward at the time to write high-performance code because of all the object wrapping of primitive types that was necessary to get abstraction. At the time there were not even typedefs of primitive types. For instance, if...
by nnnnnnnn
Mon Jun 22, 2020 10:23 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: UCI_SetPositionValue implementations?
Replies: 0
Views: 888

UCI_SetPositionValue implementations?

Any strong engines supporting UCI_SetPositionValue?
by nnnnnnnn
Sat Jun 20, 2020 12:06 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: when to cut off search in a UCI client with score cp 0
Replies: 0
Views: 1048

when to cut off search in a UCI client with score cp 0

I have a UCI client interfacing to Stockfish, for analysis. I am only interested in the win/loss/draw value of the position generally. Now, if the score is of the form mate k , I can obviously cut off the search there, say info depth 2 seldepth 4 multipv 1 score mate 2 nodes 251 nps 125500 tbhits 8 ...
by nnnnnnnn
Fri Jun 19, 2020 9:36 pm
Forum: Computer Chess Club: General Topics
Topic: What is the best way to obtain the 7-piece tablebases?
Replies: 44
Views: 6357

Re: What is the best way to obtain the 7-piece tablebases?

Thank you, that looks useful for Windows users. I wonder if there is something like that for Mac.