Search found 834 matches

by PK
Fri Oct 23, 2020 3:00 pm
Forum: Computer Chess Club: General Topics
Topic: Polish users cut off from TalkChess
Replies: 58
Views: 46850

Re: Polish users cut off from TalkChess

Most of the time I cannot log in through my VPN. This is a rare moment when I can. And I am going to use it to write that as long as this situation persists, I will not post on this forum. My lifelong habit was to avoid discriminatory environments, and TalkChess became one of them. I will never acce...
by PK
Fri Oct 23, 2020 2:43 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Opening library
Replies: 12
Views: 1099

Re: Opening library

you can use lines from here: https://github.com/nescitus/cpw-engine/ ... r/book.cpp

PS. don't expect any reply from me. loggin in through my VPN does not always work. Shame for the people who forced me to use it, shame for this forum.
by PK
Thu May 21, 2020 9:47 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Simplifying code
Replies: 118
Views: 49905

Re: Simplifying code

JohnWoe, either You are including comments in Your LOC count or my regular expression to count lines of code is broken. It tells me that Rodent IV is roughly 8500 lines of code, excluding comments.
by PK
Sun May 10, 2020 10:34 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: PST for FRC
Replies: 4
Views: 1198

Re: PST for FRC

This is interesting. A friend added FRC support to Rodent and after playing a few games I know that its eval is sub-optimal for this chess variant. My engine seems to be reluctant to take central space in FRC, even though in normal games it does so willingly. The reason is that it does not have a bi...
by PK
Tue Apr 28, 2020 6:53 am
Forum: Computer Chess Club: General Topics
Topic: Rodent IV message
Replies: 1
Views: 824

Re: Rodent IV message

Just ignore this message - this is a debug info that I forgot to switch off. Generally it means that one of the threads has been searching at depth two plies lower than the "best" thread, and because of that it has been restarted at greater depth.
by PK
Tue Apr 21, 2020 8:26 pm
Forum: Computer Chess Club: General Topics
Topic: Rodent FRC/960
Replies: 6
Views: 1797

Rodent FRC/960

As You may remember, Bernhard C. Maerz decided to add Fischer Random Chess support to Rodent. I added a couple of bugfixes, and it seems that now I can make this release official. At http://www.pkoziol.cal24.pl/rodent/rodent.htm you can download both the last version where I was the main developer a...
by PK
Mon Mar 23, 2020 3:03 pm
Forum: Computer Chess Club: General Topics
Topic: When will the chess programmers write an engine that plans ?
Replies: 201
Views: 18889

Re: When will the chess programmers write an engine that plans ?

Chess has 2 main elements: 1)Calculating lines like if I play A1 then if the opponent play B1 then I play C1. If I play A1 then if the opponent play B2 then I play C2 if I play A2 then if the opponent.... Despite whatever Kotov said, human calculation is much more messy: 1) My bishop move attacks o...
by PK
Sun Mar 22, 2020 9:53 am
Forum: Computer Chess Club: General Topics
Topic: Chess and Cognac
Replies: 24
Views: 5440

Re: Chess and Cognac

Note that if you want style and don't care about strength it's possible Rodent IV personalities will never be as good as Rodent III ones, and in this aspect there's no reason to upgrade as IV's improvements would be irrelevant for these purposes (III's personalities could be made stronger at will) ...
by PK
Sat Mar 21, 2020 3:12 pm
Forum: Computer Chess Club: General Topics
Topic: Can nobody compile Roden IV?
Replies: 68
Views: 14568

Re: Can nobody compile Roden IV?

Is it possible to use Rodent III personalities in Rodent IV? They would have to be converted. I changed engine name to indicate that incompatibility. Three most important differences are king tropism (from Hakkkpeliitta), space evaluation (which I added specifically to be able to create Morphy pers...
by PK
Sat Mar 21, 2020 12:43 pm
Forum: Computer Chess Club: General Topics
Topic: When will the chess programmers write an engine that plans ?
Replies: 201
Views: 18889

Re: When will the chess programmers write an engine that plans ?

"Planning" engine would play boring, schematic, uninspired chess. How do I know? Because such a sad thing has been done to beautiful game of go, see https://www.gnu.org/software/gnugo/