Search found 345 matches

by Ron Murawski
Wed May 30, 2007 8:26 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Observator bias or...
Replies: 51
Views: 55857

Re: Observator bias or...

Hi Alessandro, If I make a coding change and the results of the first 100 games are bad I tend to stop testing and start re-coding. But if the first 100 games go well I continue running test games. Because of this tendency the result of the first 100 games always seems to be a bit better than the 10...
by Ron Murawski
Wed May 16, 2007 3:28 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: about MateThreat
Replies: 4
Views: 4352

Re: about MateThreat

MateThreat tell us "the null move found that the side on move gets mated by not moving". So if it is necessary still "doing" null move when the MateThreat variable had been set true by Transposition Table? By the way,many engines extend the search depth when MateThreat is true. In my test, it seems...
by Ron Murawski
Sat Apr 14, 2007 8:02 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Opinions on best software to develope C++ code with
Replies: 21
Views: 24882

Re: Opinions on best software to develope C++ code with

I've used an introductory version of MS Visual C++ to make my engine and am interested in opinions on best choice for purchase. It seems like MS Visual Studio 2005 Standard Editionat $299 is a good choice. Any thoughts? Thx Steve With open source coming on so strong there's little reason to pay for...
by Ron Murawski
Sat Apr 14, 2007 7:16 pm
Forum: Computer Chess Club: General Topics
Topic: A computer novelty that seems to play rather well
Replies: 4
Views: 3622

Re: A computer novelty that seems to play rather well

It scores 80% for a small sample of games, and may be worth exploring. From this position: [D]r1bq1rk1/pp3ppp/2n1pn2/2pp4/2PP4/P1PBPN2/5PPP/R1BQ1RK1 b - - id "NNSSL.035"; pm b6 Qd6 dxc4 Qc7; The above should be: pm b6 *Qc7* dxc4 Qc7; Reference: NCO paperback edition, page 493 bm Ne4?!; c0 "Ne4 is r...
by Ron Murawski
Sat Apr 14, 2007 6:16 pm
Forum: Computer Chess Club: General Topics
Topic: Here is a position, where computers make an inferior choice.
Replies: 4
Views: 3789

Re: Here is a position, where computers make an inferior cho

From this position: [D]r1b2rk1/pp1nqpp1/2p4p/4p3/2BP4/2R1PN2/PP3PPP/3Q1RK1 w - - id "NNSSL.021"; pm Qc2 d5; c0 "Actually, Qc2 is doubtful."; This should be a book move, not a chess engine evaluation position. Horizon's opening book has [move(probability)]: Bb3 (50%) and Qb1(50%). I have decided to ...