Search found 3124 matches

by Sven
Thu Oct 18, 2018 7:51 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: CSVN tournament, December 2 and 3 in Leiden, the Netherlands
Replies: 3
Views: 78

Re: CSVN tournament, December 1 and 2 in Leiden, the Netherlands

flok wrote:
Thu Oct 18, 2018 7:49 am
Oops! I meant 1/2 december.
Ok, that's what I thought it should be :-)

Maybe the mods could fix the thread subject?
by Sven
Thu Oct 18, 2018 7:47 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: CSVN tournament, December 2 and 3 in Leiden, the Netherlands
Replies: 3
Views: 78

Re: CSVN tournament, December 2 and 3 in Leiden, the Netherlands

flok wrote:
Wed Oct 17, 2018 8:04 pm
Hi,

December 2 and 3 there will be a tournament held by CSVN in Leiden, the Netherlands.
If you wrote a chess-program, you can participate!
More details follow but please put already a note in your agenda that these two dates are special :D
December 2nd/3rd is Sunday + Monday, is that intended?
by Sven
Sat Oct 13, 2018 10:10 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney October
Replies: 14
Views: 662

Re: On-line engine blitz tourney October

Here are the Jumbo games. [Event "ICS rated blitz match"] [Site "winboard.nl"] [Date "2018.10.13"] [Round "-"] [White "Arminius"] [Black "Jumbo"] [Result "1-0"] [WhiteElo "1844"] [BlackElo "1533"] [TimeControl "300+1"] [Annotator "11... -0.02"] 1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. Nc3 g6 6. O-...
by Sven
Sat Oct 13, 2018 6:01 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney October
Replies: 14
Views: 662

Re: On-line engine blitz tourney October

Regarding strength: would it make any sense to increase the weights (i.e. the frequency of being selected randomly) of all captures, promotions and possibly also checks during a rollout? I have never tried MCTS myself but I could imagine that this might increase the probability of actually losing a ...
by Sven
Sat Oct 13, 2018 5:29 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney October
Replies: 14
Views: 662

Re: On-line engine blitz tourney October

Nice work, Colin!

I found one very minor issue: when checkmating by promoting, the display does not change the pawn into the promotion piece.
by Sven
Fri Oct 12, 2018 3:51 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Crafty v25.3 compile
Replies: 8
Views: 805

Re: Crafty v25.3 compile

jdart wrote:
Fri Oct 12, 2018 1:54 pm
Re the errors about unistd.h (tbcore.c(11) for example) - that doesn't really make sense to me. In the source I have that is not included if _WIN32 is defined, and MSVC should define that by default.

--Jon
Typically Crafty includes unistd.h and other POSIX headers within #if defined(UNIX).
by Sven
Tue Oct 09, 2018 6:27 pm
Forum: Computer Chess Club: General Topics
Topic: Arasan 21.1
Replies: 20
Views: 1870

Re: Arasan 21.1

For C++ programs, I also fiddle with the C++ I/O operations like this: int main(int argc, char* argv[]) { setvbuf( stdin, NULL, _IONBF, 0 ); setvbuf( stdout, NULL, _IONBF, 0 ); std::cout.setf( std::ios::unitbuf ); // For C++ std::cin.setf( std::ios::unitbuf ); // For C++ std::cout << engine_info() ...
by Sven
Mon Oct 08, 2018 5:27 pm
Forum: Computer Chess Club: General Topics
Topic: Arasan 21.1
Replies: 20
Views: 1870

Re: Arasan 21.1

I have found that there are lots of chess engines that do not work properly under Windows with UCI or Xboard. It is almost always due to buffering. Is this an issue with Arasan? Arasan is C++ so it does this on startup: setbuf(stdin,NULL); setbuf(stdout, NULL); std::cout.rdbuf()->pubsetbuf(NULL, 0)...
by Sven
Mon Oct 08, 2018 10:23 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Rising Stars v Fading Warriors II Teams Match
Replies: 19
Views: 1301

Re: Rising Stars v Fading Warriors II Teams Match

Matthias Gemuh wrote:
Mon Oct 08, 2018 9:24 am
Graham Banks wrote:
Fri Oct 05, 2018 8:32 pm
...
Hi Matthias,

have things settled down in your country yet?

Graham.
killings and burnings intensified
In which country are you living?
by Sven
Mon Oct 08, 2018 9:37 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Tablebase descriptors
Replies: 3
Views: 341

Re: Tablebase descriptors

Typically sort order: - the side has more pieces come first - if two sides have same piece number, who has more material come first - for each side, bigger piece comes first For your example I think KRRNPKQBN is typically accepted. But what exactly is "more material"? 9-5-3-3-1 based? E.g. KRRNKQBP...