Search found 88 matches

by Tony P.
Mon Sep 18, 2017 4:39 pm
Forum: Computer Chess Club: General Topics
Topic: Andscacs - New version 0.92
Replies: 27
Views: 6780

Re: Andscacs - New version 0.92

There's Fire 6 to be released within the next few weeks, though. I wish all the TCEC participants to play chess at a level as high as possible :) Thanks for the upgrades! As a rule of thumb, in single rook endings where all pawns are on the same side , the position is a draw with best play. Yes, ex...
by Tony P.
Sun Sep 17, 2017 9:57 pm
Forum: Computer Chess Club: General Topics
Topic: Andscacs - New version 0.92
Replies: 27
Views: 6780

Re: Andscacs - New version 0.92

I'm not a chess expert... how can Black try to make any progress in the following KRPPvKRP (it starts at move 53)? The only pawn that can be passed is the h-pawn, and the fact that it's a rook pawn decreases the winning chances dramatically, as a rule of thumb. Yet, both engines evaluated it as abou...
by Tony P.
Sun Sep 17, 2017 7:36 pm
Forum: Computer Chess Club: General Topics
Topic: Andscacs - New version 0.92
Replies: 27
Views: 6780

Re: Andscacs - New version 0.92

It's a bit strange that Andscacs promoted to a rook in the following game (5'+3'' time control, resignation after -5 eval for 3 moves in a row), though it didn't influence the result at all. (Of course it's far not the only engine that's prone to underpromotion when the new piece is going to be take...
by Tony P.
Sun Sep 17, 2017 6:45 pm
Forum: Computer Chess Club: General Topics
Topic: Andscacs - New version 0.92
Replies: 27
Views: 6780

Re: Andscacs - New version 0.92

Congrats on the release and the strength improvement! One interesting change that I want to comment, but interested people will have to work the details for themselves, is that it now saves two moves to hash. This sounds excellent! Have you ever experimented with saving more than 2 moves per positio...
by Tony P.
Sun Sep 17, 2017 4:31 pm
Forum: Computer Chess Club: General Topics
Topic: 2017-2018 World Engines KO Champs V Who Will Win?
Replies: 14
Views: 3972

Re: 2017-2018 World Engines KO Champs V Who Will Win?

AA Ross, you want Thinksfish (or another Brainfish family engine) to win, don't you? ;) Otherwise why would you allow the engines to use their own books?
by Tony P.
Sun Sep 17, 2017 2:54 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Evaluation as a composite
Replies: 26
Views: 4971

Re: Evaluation as a composite

Alternative is a search factory that creates a search for a robot with an evaluation state using an evaluation strategy (composite) that updates its behavior depending on the position. I want two robots playing chess with different evaluation strategies and see which one plays best. So you need two...
by Tony P.
Sat Sep 16, 2017 10:07 pm
Forum: Computer Chess Club: General Topics
Topic: Gaviota, Wasp, The Baron, Pro Deo
Replies: 47
Views: 7338

Re: Gaviota, Wasp, The Baron, Pro Deo

BrendanJNorman wrote:Of course - but the difference is that Prodeo time and time again, has a habit of playing such piece sacs for rolling passed pawns.
That's a good point. Apparently, rolling passers have an unusually high weight in Prodeo's static eval :)
by Tony P.
Sat Sep 16, 2017 9:58 pm
Forum: Computer Chess Club: General Topics
Topic: Gaviota, Wasp, The Baron, Pro Deo
Replies: 47
Views: 7338

Re: Gaviota, Wasp, The Baron, Pro Deo

Actualy, Stockfish 8 slightly prefers 36. Be5 too (0.00; other moves are -1.21 at best, except 36. Re1+ Kd7 37. Be5 that's 0.00 too). White makes this sac in order to distract Black's knight from attacking the c-pawn, whose loss would be undesirable for White as it would create a protected passer fo...
by Tony P.
Sat Sep 16, 2017 8:01 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish no progress in 2month and half , why ?
Replies: 49
Views: 13673

Re: Stockfish no progress in 2month and half , why ?

Sugar is Stockfish dev clone. So this is more the rating of Stockfish dev than something else. Oh, it's great to hear that SF's dev is noticeably better than the stable version :) What's bugging me is that the SF brand is erased from the leaderboard. It's a minor annoyance for the authors as SF is ...
by Tony P.
Sat Sep 16, 2017 6:23 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish no progress in 2month and half , why ?
Replies: 49
Views: 13673

Re: Stockfish no progress in 2month and half , why ?

Breaking news: in today's update of the CCRL 40/40 rating list, SugaR XPrO 1.2 64-bit 4CPU has got a 3413 rating based on 292 games and is now considered the best version of SF at 40/40 (not at 40/4 yet), erasing SF itself out of the 40/40 index and pure leaderboard (that list only 1 version per eng...