Search found 193 matches

by zd3nik
Thu Aug 11, 2016 2:06 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Show thinking in Arena questions.
Replies: 7
Views: 1757

Re: Show thinking in Arena questions.

Most definitely not a meaningless value. At least not for engine developers while doing testing. I've done something stupid in quiescence search more times than I care to admit. Being able to see at a glance that selective search depth has jumped to some rediculously high values has saved me a lot ...
by zd3nik
Sun Aug 07, 2016 7:05 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Show thinking in Arena questions.
Replies: 7
Views: 1757

Re: Show thinking in Arena questions.

I don't think Arena shows selective depth of WB engines this way. They would probably be shown in the PV field. WinBoard would also only show it in a separate column, which you can open or close at will (for UCI or WB engines alike). It is a rather meaningless statistic anyway. Most definitely not ...
by zd3nik
Sun Aug 07, 2016 6:54 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Can you please check my Transposition Table logic
Replies: 7
Views: 1410

Re: Can you please check my Transposition Table logic

So if a null move causes a beta cut we don't have a move to save. What do we do here ? Don't save a move. Alternatively, don't store nullmove scores in the TT. YMMV. Hmmm. I've never stored beta cutoffs from a null move search in the TT. What depth would you use? Can the score really be considered ...
by zd3nik
Sun Aug 07, 2016 6:31 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: SEE implemented the wrong way?
Replies: 15
Views: 4179

Re: SEE implemented the wrong way?

In Isa , I don't have SEE yet , only MVV/LVA I don't understand how implement SEE without costly making / unmaking moves , to check if a capture is legal or illegal : An exemple with a position (imaginary) : [d]3r2k1/1b3ppp/pp3p2/3n4/P3P3/1PN2P2/r2R1KPP/3R4 w - - 0 5 Here the engine want to know th...
by zd3nik
Sun Aug 07, 2016 5:56 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Calculating space
Replies: 5
Views: 1858

Calculating space

I tried searching for existing topics on this, but the terms I could think of to search on are apparently too general so I didn't find any topics on this specific idea. I currently calculate space by looking at squares behind connected pawns. Of those squares I count the number of vertically contigu...
by zd3nik
Wed Jul 13, 2016 10:37 pm
Forum: Computer Chess Club: General Topics
Topic: Bumblebee bug fix release
Replies: 7
Views: 1654

Re: Bumblebee bug fix release

Jamal Bubker wrote:Thanks Shawn for releasing this new Bumblebee version !
My pleasure. I hope the engine serves you well, whatever you're using it for. :)
by zd3nik
Sun Jul 03, 2016 6:45 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Multi-cut and fail-soft
Replies: 9
Views: 3284

Re: Multi-cut and fail-soft

I'm experimenting with multi-cut, and it seems to be fairly effective (though I have no testing to prove this as of yet). Since my search is fail-soft, but MC uses multiple searches, I'm wondering what I should return from a theoretical standpoint. I'm currently returning beta, but returning the sc...
by zd3nik
Sun Jul 03, 2016 6:37 pm
Forum: Computer Chess Club: General Topics
Topic: Bumblebee bug fix release
Replies: 7
Views: 1654

Re: Bumblebee bug fix release

Turns out I had screwed up the engine setup in Arena in the tournaments referenced above. I created the bug-fix engine config by duplicating one of my (failed) experimental versions of bumblebee and I only updated the name of the config - forgot to update which engine it actually loaded! After corre...
by zd3nik
Thu Jun 30, 2016 2:03 am
Forum: Computer Chess Club: General Topics
Topic: Bumblebee bug fix release
Replies: 7
Views: 1654

Re: Bumblebee bug fix release

If the strength gain is noticeable, could I suggest naming this release as Bumblebee 1.01? Not a fan of the git revision hash to distinguish versions? Can't say I blame you. I'll consider changing the version scheme, but don't hold your breath. I would like to finish running it through the gauntlet...
by zd3nik
Tue Jun 28, 2016 6:05 am
Forum: Computer Chess Club: General Topics
Topic: Bumblebee bug fix release
Replies: 7
Views: 1654

Re: Bumblebee bug fix release

If the strength gain is noticeable, could I suggest naming this release as Bumblebee 1.01? Not a fan of the git revision hash to distinguish versions? Can't say I blame you. I'll consider changing the version scheme, but don't hold your breath. I would like to finish running it through the gauntlet...