Is there any chance of getting the PA_GTB stuff added to a fork of Stockfish 7?

Or does it already exist somewhere unknown to google?

Thanks for the info Velmarin,

I'll keep an eye on your site from now on!

OK, I'll keep an eye on https://github.com/erashid/DON though I can't compile it myself

Btw, on the page it says "0 releases", so I wonder where those get published? I found DON 1.0b some months ago, but maybe it's not an official release...

Does anybody know if there will be any more version of DON or was it a one time celebration of Don Dailey?

Anyway, I quite like this engine, it's similar to Stockfish but seems to play the opening and middlegame a little better (at least in my opinion), SF 4 001 is still better in the ending, but ...

Sometime ago I tried two versions of SF3 GTB playing vs each other with the same hashfile. It worked fine for me, though after them following each other's analysis for 10-15 moves the defender starting playing other first moves than in the analysis. But I guess that was desperation as the position ...

When you get the time you may want to check up on the following bug I just noticed with the PH.

If say 43.Qh4-h5 has been deemed best by previously reaching the set ply depth for Persistent Hash, and black responds Ng8-f6 44.Qh5-h4 and then repeats the position with Nf6-g8 you get a quick draw by ...

Good to know!

Btw, if I've got it right SF 3 sets all cores by default and SF 4 is only 1 core by default. So, maybe that's why my computer has had troubles with 006 - 008!? Using only one core it seemed to use 10 times the memory...

Anyway, after setting threads to 2 there haven't been any more ...

By the way, I just saw that SF 4 is just out. Will you make a GTB version for that one too when you get the time?

I did this for about an hour. Use Persistent hash box checked but "0" as book depth.

It does indeed seem to rise slowly, in the "private workmemory"

Move 1
1-6 min 546 236kb
after 7min 546 244
after 9min 546 260
after 10min 546 332

Move 2
2min 546 336
8min 546 352
12min 546 476
37min 546 488 ...

OK, I'll do that in a day or three.

Btw, this seems to happen after very long games 3-6 hours for 30-40 moves. A few days ago I ran it with 2h each for 30 moves without incidents - (though most of those were won within 25 moves).

(Unfortunately, it and the others really need the extra hours or ...