Search found 3099 matches

by Eelco de Groot
Sun Nov 17, 2019 2:01 pm
Forum: Computer Chess Club: General Topics
Topic: Testposition
Replies: 10
Views: 894

Re: Testposition

mentioned by vishyvishy from Lc0 forum: https://groups.google.com/forum/#!topic/lczero/vt-O1_KamtI [d]1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP4/2P1QN2/PP3P1P/R2BR1K1 w - - 0 21 bm Nh4 21. .. Kh7!? (21...Nxh4?! +- (21. .. bxc3?! 22. bxc3 Nxh4 23. Qh3 Nf5 24. Qxh5 Rb2 25. Bg4 +-)) 22. Bc2 Bd7 !?? im not su...
by Eelco de Groot
Thu Nov 14, 2019 2:48 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish search stops here after 99 plies, why?
Replies: 9
Views: 816

Re: Stockfish search stops here after 99 plies, why?

Assumimg that Stockfish really sees the 50 move rule here, it should but I can't remember Stockfish actually doing this myself, but then it will find that every value other than a draw is wrong. Because even with only three pieces moving there are a lot of transpositions all with the same value beca...
by Eelco de Groot
Thu Nov 14, 2019 9:48 am
Forum: Computer Chess Club: General Topics
Topic: Testposition
Replies: 10
Views: 894

Re: Testposition

23. Qxh5 is totally winning by the way, as most people already will have seen by now. But Stockfish practically only considers the reply 23. Bxh5 which is not winning 1rb1qrk1/2b2pp1/p3pB2/3pPnPp/1ppP4/2P4Q/PP3P1P/R2BR1K1 w - - (best 15 moves here) 1rb1qrk1/2b2pp1/p3pB2/3pPnPp/1ppP4/2P4Q/PP3P1P/R2BR...
by Eelco de Groot
Thu Nov 14, 2019 6:18 am
Forum: Computer Chess Club: General Topics
Topic: Testposition
Replies: 10
Views: 894

Re: Testposition

After ten hours (one core) latest Stockfish development version is still playing something else, 21. h3 At no point 21. Nh4 is chosen or considered seriously in normal operation as far as I could see, in the beginning. 1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP4/2P1QN2/PP3P1P/R2BR1K1 w - - Engine: Sf2019111...
by Eelco de Groot
Sun Nov 03, 2019 3:01 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: "stat score bonus" in stockfish
Replies: 6
Views: 825

Re: "stat score bonus" in stockfish

I think there is an aging factor for the stat scores, so that they do get refreshed. But more importantly, the bonus is only added in nodes with no ttHit. This means probably that the node is often near the leaves, and a new node. Once the hash probe finds a search result, you have both a search res...
by Eelco de Groot
Sat Nov 02, 2019 2:06 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: some questions about singular search in Stockfish
Replies: 3
Views: 709

Re: some questions about singular search in Stockfish

As far as I can see, those are good questions. Using the alternative Key I think is no longer needed but still there because in the past the result of the search with excluded move was stored, but it gave a little Elo not to do that anymore. I can't really see why it was not smplified away after tha...
by Eelco de Groot
Fri Nov 01, 2019 1:26 pm
Forum: Computer Chess Club: General Topics
Topic: For under the Christmas tree?
Replies: 2
Views: 581

For under the Christmas tree?

E-mail from New in Chess about Larry Kaufman's new book, I just saw this in my mailbox, maybe interesting idea for the people looking for a gift to themselves or for others for the holiday season. You indirectly support work on Komodo, and Monte Carlo search I think too. https://gallery.mailchimp.co...
by Eelco de Groot
Sun Oct 27, 2019 6:09 am
Forum: Computer Chess Club: General Topics
Topic: First chess benchmarks for the Intel core i9-10980XE emerge
Replies: 19
Views: 1352

Re: First chess benchmarks for the Intel core i9-10980XE emerge

Mr. Monster predicts just under 1000$, if I read the first page right? Google translate of the first page, Rumanian to English: 4647/5000 Review - Intel Core i9 10980XE - Cascade Lake X Written by: Monster, in the category: Featured Articles, Processors & Chipsets, on October 25, 2019. Browse chapte...
by Eelco de Groot
Mon Oct 07, 2019 9:46 pm
Forum: Computer Chess Club: General Topics
Topic: Is Black's compensation after 16. g3 really sufficient?
Replies: 15
Views: 2583

Re: Is Black's compensation after 16. g3 really sufficient?

Yes, after all the engines are giving an advantage of over 1.00 to White. The question is whether Black can draw. If Black is worse after 16. g3 but not losing, one can argue about whether the word "unsound" really applies to Black's play. Hello Jean Paul, sorry, I missed your reply here! No sure s...