Search found 899 matches

by Ras
Wed Sep 14, 2016 7:04 pm
Forum: Computer Chess Club: General Topics
Topic: Computer opening disappeared ?
Replies: 3
Views: 907

Re: Computer opening disappeared ?

That opening is known by many names like Van Geet, but it has never been popular because it doesn't do much. The winning percentage for white is even less than 50%, according to Wikipedia. So I guess computers don't play it anymore because they have become stronger. Here the search for the CT800 in ...
by Ras
Wed Sep 14, 2016 6:38 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Black pawns are thick
Replies: 6
Views: 1535

Re: Black pawns are thick

Henk wrote:But at the end when I created the black pawn by copying the white pawn it looked much thicker than the white pawn.
That's harmless compared to the drama you'll get when you'll arrive at the queens.
by Ras
Thu Sep 08, 2016 7:31 pm
Forum: Computer Chess Club: General Topics
Topic: new chess computer: CT800
Replies: 29
Views: 5873

Re: new chess computer: CT800

thank you Fernando; what I agree with is that the design of the prototype isn't actually appealing. It looks more like a medical lab device where you insert some probe at the backside. I had to use what I could get in terms of available electronics housings. Plus that I am not good at visual design ...
by Ras
Thu Sep 08, 2016 5:40 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Root search
Replies: 5
Views: 1698

Re: Root search

NG-Play (and thus the CT800) uses NegaScout in the normal search, but a stripped down NegaLight at the root. The moves are generated, ordered per LVVV/MVA. In the CT800, but not in NG-Play, a first search at depth=1 plus quiescence is done for refining the move sorting. Doesn't cost much time and he...
by Ras
Thu Sep 08, 2016 5:05 pm
Forum: Computer Chess Club: General Topics
Topic: FF 48.02 and huge tables at GoogleDrive (XB/UCI chronology)?
Replies: 11
Views: 1305

Re: FF 48.02 and huge tables at GoogleDrive (XB/UCI chronolo

Loading is quick, some seconds or so (my line is at 12 Mbit). Scrolling in the first table is easy. However, clicking on "country code", FF becomes unresponsive and finally offers to abort some running script.

FF 45.3.0 ESR here.
by Ras
Thu Sep 08, 2016 1:22 am
Forum: Computer Chess Club: General Topics
Topic: CFish
Replies: 76
Views: 21741

Re: CFish

In general, I would like to be able to compile Cfish from an IDE That's not the best idea for a couple of reasons, which is why makefiles or buildscripts are usually the preferred solution. - People use many different IDEs on many different operating systems. Including build instructions for any po...
by Ras
Wed Sep 07, 2016 7:01 pm
Forum: Computer Chess Club: General Topics
Topic: new chess computer: CT800
Replies: 29
Views: 5873

Re: new chess computer: CT800

well, if all that is like you say it is, then which is the sense of your device? Several things: - the Revelation cannot run on standard AA batteries because it draws too much power. - it does not allow the user to have full access to the sources, modify them and reprogram the device at will. - the...
by Ras
Wed Sep 07, 2016 6:00 pm
Forum: Computer Chess Club: General Topics
Topic: new chess computer: CT800
Replies: 29
Views: 5873

Re: new chess computer: CT800

Yes, I saw it, but not being a programmer i cannot give an opinion. The issue is that a codebase written in that way is just not maintainable. It's like a piece of art - watch it, but don't touch it. That way of coding flies in the face of pretty much any definition of "structured programming", whi...
by Ras
Wed Sep 07, 2016 5:24 pm
Forum: Computer Chess Club: General Topics
Topic: new chess computer: CT800
Replies: 29
Views: 5873

Re: new chess computer: CT800

Did you actually take the time to check the linked code fragment? That's why. The rest will not be much different. Suffice to say that I am not inclined to work with code that is written in such a way.
by Ras
Wed Sep 07, 2016 4:53 pm
Forum: Computer Chess Club: General Topics
Topic: Adding a random small number to the evaluation function
Replies: 19
Views: 2872

Re: Adding a random small number to the evaluation function

The CT800 has this as configurable option: off, +/- 10, 30, 50 centipawns. It is random noise added directly to the eval of a position. Disabled for the endgame eval.

The point, however, isn't raising the playing level, but giving more game variety.