Search found 349 matches

by op12no2
Fri Nov 24, 2017 3:44 pm
Forum: Computer Chess Club: General Topics
Topic: TCEC 10
Replies: 229
Views: 65730

Re: TCEC 10

I saw that too and was wondering the same. I just asked and somebody told me Mark L said no problem, but depends if we were talking about the same message time-frame because he has (also) said that pre numa message.
by op12no2
Fri Nov 17, 2017 11:50 am
Forum: Computer Chess Club: General Topics
Topic: TCEC 10
Replies: 229
Views: 65730

Re: TCEC 10

There are two donation links. A chessdom paypal one on the front page and a twitch one linked to in chat now and again. To the organisers or anybody else that knows: which is preferred, if any? I did ask in the chat but if there was a reply I missed it. I am enjoying watching very much (first time),...
by op12no2
Sat Nov 04, 2017 9:40 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Exact TT scores and alpha/beta
Replies: 23
Views: 5368

Re: Exact TT scores and alpha/beta

Yes, sorry chaps, ignore me, >= beta makes sense and that's what I do - no idea what went on in my mind for that message yesterday :)
by op12no2
Fri Nov 03, 2017 3:54 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Exact TT scores and alpha/beta
Replies: 23
Views: 5368

Re: Exact TT scores and alpha/beta

... if (type == TT_BETA && score >= beta) return score; ... Thinking about that it seems to be wrong? SHould be > beta? Ignoring the TT we would not return a score == beta as a beta/low cut, it'd be exact, so the quoted code is keeping us from finding exact moves on occasion...? I'll test it.
by op12no2
Fri Nov 03, 2017 3:21 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Aspiration window problem
Replies: 14
Views: 3141

Re: Aspiration window problem

Henk wrote:I think trouble started when it found an entry in transposition table with value outside of the search window and returning it's best move while that move can not be trusted.
http://www.talkchess.com/forum/viewtopic.php?t=63251 :)
by op12no2
Fri Nov 03, 2017 1:58 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Aspiration window problem
Replies: 14
Views: 3141

Re: Aspiration window problem

Never been able to get aspiration search working correctly. If time is up there is no time for research and a bad move is returned. Trying to correct that never worked for Skipper. Perhaps transposition table got corrupt too by aspiration search (when time is up) I don't know As I see it, if search...
by op12no2
Sun Oct 29, 2017 9:51 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Ten Years After
Replies: 14
Views: 3589

Re: Ten Years After

CPW is my go to resource to learn about techniques; many thanks from me and Lozza too.
by op12no2
Sat Oct 28, 2017 10:15 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Games of the on-line blitz tourney Oct 2017
Replies: 28
Views: 3622

Re: Games of the on-line blitz tourney Oct 2017

Lozza. [pgn] [Event "ICS rated blitz match"] [Site "winboard.nl"] [Date "2017.10.28"] [Round "-"] [White "Lozza"] [Black "Nameless"] [Result "0-1"] [WhiteElo "1561"] [BlackElo "1559"] [TimeControl "300+1"] [Annotator "4. -0.46 4... -0.33"] 1. d4 f5 2. Nf3 g6 3. c4 Nf6 4. g3 {-0.46/11} d5 {-0.33/11} ...