Search found 3715 matches

by jdart
Fri Dec 06, 2019 1:02 am
Forum: Computer Chess Club: General Topics
Topic: nice tactical position
Replies: 4
Views: 350

nice tactical position

From a recent online Arasan game: r1bq1r2/bp3pk1/2pp4/p6p/P1BPPP1N/6Bn/1P4pK/2RQR3 w - - 0 22 White played Nxg2 and won. But on longer analysis, it appears f5! and allowing Black to promote is even better. Stockfish and Houdini are very fast on this. But other engines have difficulty (Fritz 16 for e...
by jdart
Thu Dec 05, 2019 3:55 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: I bought a stop-gap machine
Replies: 12
Views: 423

Re: I bought a stop-gap machine

In the winter, when I run it like gangbusters, I get electric bills of $600 to $700 per month. I have a 6.6 KW solar system now. I only pay for net usage after subtracting the solar contribution. But billing is based on time of day, so I try to avoid running my multiple servers in the peak billing ...
by jdart
Mon Dec 02, 2019 1:34 am
Forum: Computer Chess Club: General Topics
Topic: BT2630 test 12
Replies: 2
Views: 304

BT2630 test 12

I have noticed that besides the published solution Qe4, Qf5 is a mate also: [Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "?"] [Black "?"] [Result "*"] [SetUp "1"] [FEN "8/pp3k2/2p1qp2/2P5/5P2/1R2p1rp/PP2R3/4K2Q b - - 0 1"] [PlyCount "37"] {[#]} 1... Qf5 {Stockfish 10 64 BMI2: 1)} 2....
by jdart
Sun Dec 01, 2019 10:55 am
Forum: Computer Chess Club: General Topics
Topic: CSVN tournament, 7 + 8 December!
Replies: 9
Views: 1133

Re: CSVN tournament, 7 + 8 December!

Arasan is also participating, remotely (Tessa Pijl will operate it).

--Jon
by jdart
Fri Nov 29, 2019 10:39 pm
Forum: Computer Chess Club: General Topics
Topic: Polugaevsky Variation, 10.exf6, 16...Qc7, 16...Bb7
Replies: 11
Views: 608

Re: Polugaevsky Variation, 10.exf6, 16...Qc7, 16...Bb7

It looks like the whole variation with 7. .. b5 is being avoided recently. A search for games in Correspondence DB for players >=2250 found 5 games 2017-2019 and all were White wins. OTB players are trying it more often and are more successful but it looks like if White follows the best line Black i...
by jdart
Fri Nov 29, 2019 2:08 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: get a tr3 workstation configured
Replies: 18
Views: 672

Re: get a tr3 workstation configured

Dann Corbit wrote:
Fri Nov 29, 2019 8:51 am
It is just that it is VERY hard to find places that configure 3rd gen threadripper systems.
On top of that there seems to be a serious supply problem with a bunch of AMD chips, including the Ryzen 3000 series.
by jdart
Wed Nov 27, 2019 4:28 am
Forum: Computer Chess Club: General Topics
Topic: Configure a threadripper 3 workstation with up to 4 GPUs
Replies: 10
Views: 519

Re: Configure a threadripper 3 workstation with up to 4 GPUs

their price is high ... e.g., the upgrade to the 3970 from 3960 should be $600 to $ 800 max, not $1200... Yeah, it is very high. I am thinking about building a 32-core Threadripper system, but I'd probably use to replace my 2013-era Opteron system and reuse its big server case and some of its compo...
by jdart
Tue Nov 26, 2019 2:16 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Minic raw speed
Replies: 19
Views: 1755

Re: Minic raw speed

Implementing killers and counter moves can also delay the point where you need to sort.

--Jon
by jdart
Fri Nov 22, 2019 3:55 pm
Forum: Computer Chess Club: General Topics
Topic: Carlsen is back with all his Opening knowledge....
Replies: 15
Views: 1104

Re: Carlsen is back with all his Opening knowledge....

Carlsen is hardly the guy to fear for opening knowledge.
He is pretty well prepared and keeps innovating. See the article on the 7. Nd5 Sveshnikov in NIC Yearbook for example.

But I still think Kasparov takes the prize for relentless, deep opening preparation.

--Jon
by jdart
Thu Nov 21, 2019 2:59 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: N-Queens in 110 languages
Replies: 7
Views: 531

Re: N-Queens in 110 languages

Only one for Perl (well, two if you count Perl6)? Isn't the Perl motto "There Is More Than One Way To Do It ?"

--Jon