Search found 811 matches

by elcabesa
Sun Nov 03, 2019 11:31 am
Forum: Computer Chess Club: General Topics
Topic: Vajolet2 2.8 release
Replies: 16
Views: 1062

Re: Vajolet2 2.8 release

For info, the standard x64 exe does not work on a Phenom II X6
sorry to hear that
those are the requirements for vajolet executable:
standard: sse4.2 64 bit popcnt
old: sse3 64 bit
bmi: sse4.2, 64 bit, bmi, bmi2, popcnt
by elcabesa
Sat Nov 02, 2019 9:42 am
Forum: Computer Chess Club: General Topics
Topic: Vajolet2 2.8 release
Replies: 16
Views: 1062

Re: Vajolet2 2.8 release

it depends, vajolet2 2.6.1 wes released with a minor patch because vajolet2 2.6.0 crashed under tcec conditions (>40 threads). but the overall strenght was the same
by elcabesa
Sat Nov 02, 2019 6:54 am
Forum: Computer Chess Club: General Topics
Topic: Vajolet2 2.8 release
Replies: 16
Views: 1062

Re: Vajolet2 2.8 release

Thanks for the release, Marco. While it may be a minor issue, I would like to ask you to clarify whether its version is 2.8 or 2.8.0. You announce it here as 2.8 but the engine itself says 2.8.0. I'm currently using a semantic versioninig scheme. Third number is "PATCH version when you make backwar...
by elcabesa
Fri Nov 01, 2019 5:35 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: some questions about singular search in Stockfish
Replies: 3
Views: 549

Re: some questions about singular search in Stockfish

which version of Stockfish are you looking at? it's difficult to follow if we don't know the exact version of search.cpp regarding line 651.(posKey = pos.key() ^ Key(excludedMove << 16); // Isn't a very good hash) if you are dealing with a search that has an excluded move, give it a posKey different...
by elcabesa
Fri Nov 01, 2019 2:35 pm
Forum: Computer Chess Club: General Topics
Topic: Vajolet2 2.8 release
Replies: 16
Views: 1062

Re: Vajolet2 2.8 release

I'm compiling it with gcc 8.1 or clang9. I don't know what's the minimum version of gcc you can use but sometime I use modern c++ feature like "init statement inside if". It's standard in c++17 and should be implmented in gcc 7.
by elcabesa
Fri Nov 01, 2019 12:52 pm
Forum: Computer Chess Club: General Topics
Topic: Vajolet2 2.8 release
Replies: 16
Views: 1062

Re: Vajolet2 2.8 release

kramnik wrote:
Fri Nov 01, 2019 12:14 pm
There is an arbitrary code on its GitHub repository: https://github.com/elcabesa/vajolet/blo ... gw-w64.bat, this works only on the developer's computer.
yes i know. :-)
by elcabesa
Fri Nov 01, 2019 9:38 am
Forum: Computer Chess Club: General Topics
Topic: Vajolet2 2.8 release
Replies: 16
Views: 1062

Re: Vajolet2 2.8 release

probably 15 Elo points
by elcabesa
Fri Nov 01, 2019 9:18 am
Forum: Computer Chess Club: General Topics
Topic: Vajolet2 2.8 release
Replies: 16
Views: 1062

Vajolet2 2.8 release

With pleasure I'd like to announce the release of Vajolet2 2.8 . Notable features of this release are the ability to play Fisher Random Chess and a totally rewritten syzygy probing code. The new syzygy code is totally rewritten and integrated in Vajolet2, it take inspiration from Costalba stockfish ...
by elcabesa
Tue Jul 30, 2019 4:08 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: You gotta love Perft... just not too much!
Replies: 11
Views: 4042

Re: You gotta love Perft... just not too much!

AndrewGrant wrote:
Mon Jul 29, 2019 2:08 am
I opened the Fischer one, and recognized it :)

The next one though. Thats a lengthy PERFT suite.
the fischer ones are probably all your position plus some other

the normal chess ones are random position taken from files and checked against stockfish