Search found 154 matches

by voyagerOne
Sun Nov 05, 2017 9:21 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Exact TT scores and alpha/beta
Replies: 23
Views: 5381

Re: Exact TT scores and alpha/beta

Another test I did was to see if we can safely do an exact TT-Cutoff in QS-Search.

Again it regressed pretty bad..
by voyagerOne
Sun Nov 05, 2017 8:55 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Exact TT scores and alpha/beta
Replies: 23
Views: 5381

Re: Exact TT scores and alpha/beta

Strangely doing PV TT-cutoffs in Stockfish causes a huge regression. You make the cut-off under the assumption that searching the node again would give you the same result as you found before, thus wasting time. Stockfish makes pruning decisions based on more than just alpha-beta bounds and depth, ...
by voyagerOne
Sun Nov 05, 2017 6:11 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Exact TT scores and alpha/beta
Replies: 23
Views: 5381

Re: Exact TT scores and alpha/beta

Strangely doing PV TT-cutoffs in Stockfish causes a huge regression.
by voyagerOne
Wed Sep 20, 2017 2:29 pm
Forum: Computer Chess Club: General Topics
Topic: Houdini 6 has been released
Replies: 263
Views: 78740

Re: Houdini 6 has been released

Congratulations Robert!

VoyagerOne
by voyagerOne
Fri Aug 11, 2017 5:12 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Komodo 8CPU v Houdini 8CPU Match (2 hours + 30 secs)
Replies: 155
Views: 24071

Re: Game 90 - Houdini again the aggressor, but Komodo holds.

main line wrote:Pls continue match , we want blood . Until 6 win :D
We got blood... see Graham's pic.
by voyagerOne
Tue May 16, 2017 2:26 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo 11 is out!
Replies: 37
Views: 20252

Re: Komodo 11 is out!

@Larry

Congrats with you improvements.

Out of curiosity...Are you able to indulge what idea(s) from SF did help with Komodo?
by voyagerOne
Thu Mar 02, 2017 2:41 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Stockfish 19.2.2017: any progress finally?
Replies: 4
Views: 2084

Re: Stockfish 19.2.2017: any progress finally?

You will see progress after the next couple of elo patches...
by voyagerOne
Mon Oct 31, 2016 7:46 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: SPCC: Testrun of Stockfish 161025 finished
Replies: 7
Views: 1507

Re: SPCC: Testrun of Stockfish 161025 finished

Obviously again error bars cause this +10 ELO. No real ELO patch in 2 weeks actually. 7000 games not enough to detect minor boost? Here are two new elo patches that was tested with the latest version. Author: Stéphane Nicolet Date: Tue Oct 25 06:57:29 2016 +0200 Timestamp: 1477371449 Endgame malus ...
by voyagerOne
Mon Oct 31, 2016 1:38 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: SPCC: Testrun of Stockfish 161025 finished
Replies: 7
Views: 1507

Re: SPCC: Testrun of Stockfish 161025 finished

Nice elo boost.

We are about to enter the 3400 territory.

Thanks for all your testing Stefan.
by voyagerOne
Fri Oct 14, 2016 4:04 pm
Forum: Computer Chess Club: General Topics
Topic: New Houdini
Replies: 128
Views: 42502

Re: re: win adjudication/Re: New Houdini

My theory of the strong engines having too many draws is that they simply outsearch most opponents, and they assume the opponent's will see the draw too. The search in chess engines always take the "safest" move sequence that they find. Komodo's Contempt helps prevent some draws (and also could los...