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fjpv wrote: ↑

Wed Jul 01, 2020 10:02 am

Trying to download the Arasan 22.1 Windows installer and I receive a message 404 Error - Page Not Found.

Please try again - should be fixed now.

--Jon

Arasan 22.1 is available from https://www.arasanchess.org . Changes in Arasan 22.1: 1) Remove potential passer scoring. 2) Tighten validation of hash/killer moves 3) Fix Resign threshold option (CECP mode) 4) Simplify lmp threshold computation. No longer different for PV. 5) Modify formula for lmp c...

But the 6 dtz isn't read by the computer.

Not clear what program/interface you are using?

Several TCEC games have been featured on https://www.chesspublishing.com recently. Formerly they used to pretty much ignore computer games, but now the GMs writing their columns are paying attention.

--Jon

Fixed-depth testing is not really an established method for eval tuning.

The standard way to tune eval parameters is the "Texel" tuning method, more properly termed logistic regression. Lots of discussion of that in this forum, if you search.

--Jon

Obviously my experience is absurdly out of date, but I am curious what things are like now: not just whether one can get high-performance Java (one always could if one wrote everything in terms of primitives and arrays) but whether one can write at a high level of abstract and still get good perfor...

4. Either cull, or Qsearch and play out the PV if there is one. I'm not sure this play-out idea works in practice. My tuning program accepts non-quiet positions. It does a shallow-depth search on each position, producing a PV. Then the position at the end of the PV is scored. Its score is used inst...

In the USA power is cheap

It varies by locality. It is not cheap in Northern California. I finally had to get solar because running multiple servers 24/7 was pushing my power bill above $500/month, at least in the summer when I also run air conditioning.

--Jon

Here is some data for the Latvian Gambit: I don't think those are all Latvian positions, for example: rnbqkb1r/ppp2ppp/4n3/3pP3/8/3P1Q2/PPP3PP/RNB1KBNR w KQkq - Black apparently hasn't played .. f5. But your comment about the opening is valid. A lot of the entertaining positions for Black are in li...

Samsung 860 PRO and 860 EVO series are good in my experience. M.2 drives are faster though (Samsung 970 series).