Search found 3108 matches

by Eelco de Groot
Sat Jan 11, 2020 9:15 am
Forum: Computer Chess Club: General Topics
Topic: Warm your engines
Replies: 7
Views: 706

Re: Warm your engines

I still only have my old Athlon running so to compare I can try some very old programs, that are maybe more comparable to the programs playing in the game. Only 32 bit engines, because the operating system is 32 bit. I tried my Rebel 12 Betazoid personality and it finds 1. Bxh8, but at first with a ...
by Eelco de Groot
Thu Jan 02, 2020 11:32 pm
Forum: Computer Chess Club: General Topics
Topic: What depths do you get with theThreadripper?
Replies: 3
Views: 487

Re: What depths do you get with theThreadripper?

Thanks for looking into it Mike! You confirm more or less what I thought. The bench seemed good so that is a good start, and the hardware, cooling etc seem certainly up to the task. So if it is just a question of giving more hash, that is easy to do. At least for starters. I don't know if he has fou...
by Eelco de Groot
Thu Jan 02, 2020 7:33 pm
Forum: Computer Chess Club: General Topics
Topic: What depths do you get with theThreadripper?
Replies: 3
Views: 487

What depths do you get with theThreadripper?

In reference to a question on Fishcooking from Branko , with a new 3950X, I was wondering if the guys here with Threadrippers could maybe check if the depths are okay. The bench result that Branko reported with 32 threads is impressive, but I should he not get deeper with Stockfish even if it is onl...
by Eelco de Groot
Fri Dec 20, 2019 11:08 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: SPCC: Testrun of Stockfish 191210 finished
Replies: 3
Views: 390

Re: SPCC: Testrun of Stockfish 191210 finished

Thanks for running this! I think it is a good intermediate result, even though it is not the highest for Stockfish on your list, but there is always the error bars. This is likely very close to Stockfish 11 so in that respect the test is important. Thanks!
by Eelco de Groot
Thu Dec 19, 2019 6:51 am
Forum: Computer Chess Club: General Topics
Topic: Evaluation challenge
Replies: 26
Views: 1287

Re: Evaluation challenge

Betazoid II is holding on to Rxd3! Depth 17, after 1 hour 42 minutes 01:42:53.8 -0,41 17 1864586045 Rxd3 cxd3 Rf1 Rbd8 Unfortunately, this was also not yet completely stable because Betazoid II went back to Be4, but it lasted well into the 18th iteration. . . 00:07:01.6 -0,61 15 435903875 e4 Bxf4 B...
by Eelco de Groot
Tue Dec 17, 2019 10:01 pm
Forum: Computer Chess Club: General Topics
Topic: Evaluation challenge
Replies: 26
Views: 1287

Re: Evaluation challenge

Betazoid II is holding on to Rxd3! Depth 17, after 1 hour 42 minutes

01:42:53.8 -0,41 17 1864586045 Rxd3 cxd3 Rf1 Rbd8
by Eelco de Groot
Tue Dec 17, 2019 9:27 pm
Forum: Computer Chess Club: General Topics
Topic: Evaluation challenge
Replies: 26
Views: 1287

Re: Evaluation challenge

Ugh, I ran a bunch of engines on the position, several found it at Depth 7, some at Depth 6, and the rest were not noteworthy. Then Talkchess failed to load and I only got "confirm form resubmission" once, and Talkchess failed to load, and the post was lost in the ether. But I guess this new A/B ch...
by Eelco de Groot
Tue Dec 10, 2019 3:21 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: An AMD compiling hunch
Replies: 12
Views: 1094

Re: An AMD compiling hunch

If you compile with -modern instead of -BMI2 is that not the simplest, for Stockfish I mean? You avoid the bad PEXT/PDEP instructions that Gian-Carlo mentions in another post here, they are implemented (in ZEN I suppose, not all recent AMD processors?) but Stockfish has better solution doing it with...
by Eelco de Groot
Mon Dec 09, 2019 8:06 pm
Forum: Computer Chess Club: General Topics
Topic: nice tactical position
Replies: 5
Views: 642

Re: nice tactical position

Nice test for the humans is why Black can not take the Knight with the pawn on move 5, because 6.Qxg6 (or 27. Qxg6) does not seem to work. [Event "?"] [Site "?"] [Date "2019.12.9"] [Time "8:38:56"] [Round "?"] [White "Eelco de Groot"] [Black "Chess Tiger 2007.1 engine - Gambit style"] [Result "*"] [...
by Eelco de Groot
Sun Nov 17, 2019 2:01 pm
Forum: Computer Chess Club: General Topics
Topic: Testposition
Replies: 12
Views: 1352

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...