Search found 395 matches

by Robert Pope
Fri Oct 19, 2018 8:45 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: easy move?
Replies: 12
Views: 373

Re: easy move?

I guess one of the reasons people think that easy move is not worth it is that they only test in ponder-off games. Spending a lot of time on an easy move in a ponder-on game is giving the opponent free thinking time on a guaranteed ponder hit. Of course some variants have more easy moves than other...
by Robert Pope
Fri Oct 19, 2018 1:05 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: easy move?
Replies: 12
Views: 373

Re: easy move?

I think it's something like, if the gain>X and the move has remained best for Y iterations, then stop early. I've never tried it, but I recall others saying it didn't really help. If it is an easy move, your advantage just grew, so saving a little time probably won't change the outcome. But it could...
by Robert Pope
Fri Oct 19, 2018 12:57 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: a couple of questions regarding engine testing ?
Replies: 2
Views: 165

Re: a couple of questions regarding engine testing ?

1-Should hyper-threading and Intel turbo-boost be disabled or is it okay to leave them on? I think the answer is no, but I don't have a CPU with either, so I haven't had to worry about it. The issue is, an engine on a core by itself or getting turbo-boosted will have an advantage over the other engi...
by Robert Pope
Wed Oct 17, 2018 6:34 pm
Forum: Computer Chess Club: General Topics
Topic: How good is the RTX 2080 Ti for Leela?
Replies: 24
Views: 2938

Re: How good is the RTX 2080 Ti for Leela?

Now that the 2070 is out, I was wondering if we have confirmation that it will do FP16, and how it stacks up against the others: with cudnn 7.3 and 411.63 driver available at nvidia.com minibatch-size=512, network id: 11250, go nodes 1000000 fp32 fp16 Titan V: 13295 29379 RTX 2080: 9708 26678 RTX 20...
by Robert Pope
Sun Oct 14, 2018 6:35 pm
Forum: Computer Chess Club: General Topics
Topic: Square Off ChessBoard
Replies: 6
Views: 491

Re: Square Off ChessBoard

menniepals wrote:
Sun Oct 14, 2018 4:05 pm
Still pricey for now.
True, but there really isn't anything comparable for less.
by Robert Pope
Sun Oct 14, 2018 3:59 am
Forum: Computer Chess Club: General Topics
Topic: Square Off ChessBoard
Replies: 6
Views: 491

Re: Square Off ChessBoard

Square off uses Stockfish.
by Robert Pope
Tue Oct 09, 2018 12:50 am
Forum: Computer Chess Club: General Topics
Topic: Komodo?
Replies: 13
Views: 1764

Re: Komodo?

MCTS scaling is close to alpha-beta scaling (talking about Komodo dev.) for up to four threads, somewhat worse from 4 to 8, but no benefit at all beyond 8. This number was 15 at last release, but it seems that the huge improvements since then on 1 to 4 threads weren't fully matched at higher counts...
by Robert Pope
Mon Oct 08, 2018 12:37 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Tablebase descriptors
Replies: 3
Views: 459

Tablebase descriptors

Is there a clear definition for describing potential tablebase files? Ones like KRK instead of KKR are pretty straightforward, but what about more complicated ones, like is it KQBNKRRNP or KRRNPKQBN? Is there an unambiguous correct way to list them, in general?
by Robert Pope
Wed Sep 26, 2018 3:15 pm
Forum: Computer Chess Club: General Topics
Topic: Chess.com 2018 computer chess championship
Replies: 279
Views: 28194

Re: Chess.com 2018 computer chess championship

I want to suggest the elo of LC0 somehow manages to match the elo of whatever it is playing against. Well, that's one "explanation" of its rather curious behaviour: If one looks at the loss count of the second program, Houdini against the final ranking of its opponents, we get, as would be expected...
by Robert Pope
Thu Sep 20, 2018 8:29 pm
Forum: Computer Chess Club: General Topics
Topic: How good is the RTX 2080 Ti for Leela?
Replies: 24
Views: 2938

Re: How good is the RTX 2080 Ti for Leela?

How does that compare to a 1080 or 1080 ti?