Search found 372 matches

by CThinker
Sun Feb 12, 2012 1:16 am
Forum: Computer Chess Club: General Topics
Topic: The best chess program, according to siri-like apps
Replies: 0
Views: 424

The best chess program, according to siri-like apps

When asked, "What is the best chess program?", the results were:

Iris - I don't have a favorite chess program.
Skyvi - I'd look for the cheapest.
Andy - The best chess program is Rybka 3.
by CThinker
Sat Nov 19, 2011 11:00 pm
Forum: Computer Chess Club: General Topics
Topic: WCCC 2011
Replies: 25
Views: 5710

Re: WCCC 2011

I'm sad not to see more participants in this sporting event. Neither Rondo nor Thinker returned to defend their newly-bestowed titles. And none of the stronger modern engines (Stockfish, Critter, Naum, Spike, Spark, Hannibal) dared to step into the spotlight. (This is the only computer chess tourna...
by CThinker
Sat Aug 20, 2011 9:31 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line blitz tourney August
Replies: 7
Views: 1374

Re: On-line blitz tourney August

Good game by Thinker beating Rybka I've seen Rybka get beat by Houdini similarly with a queen against rooks! [Event "ICS rated blitz match"] [Site "80.100.28.169"] [Date "2011.08.20"] [Round "?"] [White "Thinker"] [Black "RybkaGB"] [Result "1-0"] [WhiteElo "2283"] [BlackElo "2287"] [Annotator "18.....
by CThinker
Sat Aug 13, 2011 2:02 am
Forum: Computer Chess Club: General Topics
Topic: Humans Are Getting Better At Chess - Thanks to Computers?
Replies: 17
Views: 3220

Re: Humans Are Getting Better At Chess - Thanks to Computers

One example is Wesley So.

He became a GM at age 14. He did not get any training or coaching from GMs. Instead, he trained with Fritz.
by CThinker
Sun Aug 07, 2011 11:15 pm
Forum: Computer Chess Club: General Topics
Topic: Blunder by Nakamura?
Replies: 4
Views: 1239

Re: Blunder by Nakamura?

David Dahlem wrote:
zullil wrote:[D]3r1rk1/4q1bp/p5p1/1p1Rp3/n1p5/2P1PNB1/P1Q2PPP/3R2K1 b - - 4 25

Is e4 best?
No, but it looks like a draw anyway.
My problem with e4 is that it is automatically a draw.

Black is throwing away the queen-side advantage that can be used to maneuver a (slow) win.
by CThinker
Sun Aug 07, 2011 10:18 pm
Forum: Computer Chess Club: General Topics
Topic: Blunder by Nakamura?
Replies: 4
Views: 1239

Blunder by Nakamura?

At today's game of U.S. Open: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Bf4 Nxc3 6. bxc3 dxc4 7. Qa4+ c6 8. Qxc4 Bg7 9. e3 Nd7 10. Nf3 O-O 11. Qb4 b6 12. Be2 c5 13. Qa4 a6 14. Qb3 b5 15. O-O c4 16. Qc2 Nb6 17. Be5 f6 18. Bg3 Bb7 19. Nd2 e5 20. dxe5 fxe5 21. Rad1 Qe7 22. Bf3 Bxf3 23. Nxf3 Na4 24. Rd...
by CThinker
Wed Jun 29, 2011 1:46 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Ply vs ELO
Replies: 8
Views: 2090

Re: Ply vs ELO

I once devised a way to lower the engine's playing strength by simulating a slow hardware. What I did was to reduce the target search time, but still consume as much time. For example, if the target search time is 10 seconds, search() is told to run for only 5 seconds, and then the xboard shell will...
by CThinker
Sat Jun 04, 2011 8:20 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: vc++ pgo help needed
Replies: 4
Views: 1254

Re: vc++ pgo help needed

I'm simply copy the DLL to the same folder as my application binary is, and that works for me.

C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\pgort100.dll

Just make sure that you get the DLL from the VC\bin\amd64 folder and not from the VC\bin folder.
by CThinker
Wed May 11, 2011 6:35 pm
Forum: Computer Chess Club: General Topics
Topic: Fifth Annual ACCA World Computer Rapid Chess Championships
Replies: 54
Views: 11356

Re: Fifth Annual ACCA World Computer Rapid Chess Championshi

How could it be guaranteed that what the participants submit is actually the binary they use? Would it be an idea to let the organizers pack the submitted binaries into a 'wrapper' that would kibitz some ID tag derived from each move (through an algorithm only know to the organizers)? And then send...
by CThinker
Tue Mar 29, 2011 7:50 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: A fast PRNG for generating hash codes
Replies: 60
Views: 9434

Re: A fast PRNG for generating hash codes

I have yet to encounter a random generator that is so poor that the Zobrist keys generated with it performs below average. If it produces all zeros, or too few bits, then it is no good, but that is about all. I must admit I never tried to measure the performance of super-simple PRNG like (seed *= 0...