Search found 100 matches

by RubiChess
Fri Sep 13, 2019 10:10 am
Forum: Computer Chess Club: General Topics
Topic: Never thought that Alliestein was in the same level with LCZero and Stockfish !
Replies: 21
Views: 1656

Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

They used a compiler and optimization options different from the regular builds to make the binary a little faster. Unfortunately a library used by this build is buggy and causes a deadlock sometimes.
by RubiChess
Tue Aug 20, 2019 2:02 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7-piece - several questions
Replies: 7
Views: 1009

Re: Syzygy 7-piece - several questions

[...] According to this post ( http://talkchess.com/forum3/viewtopic.php?f=2&t=69309&start=20 ) you may need to download from 1 to 100 7 piece endgames: KRPPvKRP 1 KBPPvKBP 2 KPPPvKPP 3 [...] I suppose KRPPvKRP is an important end game to master both for humans and computers. Okay. I will start wit...
by RubiChess
Tue Aug 20, 2019 1:58 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7-piece - several questions
Replies: 7
Views: 1009

Re: Syzygy 7-piece - several questions

Do you have any special 7-piece file that will make the 6-piece probing code fail/crash by some integer overflow or whatever? Would probably be useful for testing in both cases. -Andreas The 6-man code won't even try to load, much less probe, 7-man bases. I would do the trivial necessary changes li...
by RubiChess
Tue Aug 20, 2019 9:32 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7-piece - several questions
Replies: 7
Views: 1009

Re: Syzygy 7-piece - several questions

Thanks for your answer, Jon. I will rethink my decission fixing the old Interface code and not switching to Fathom. On my third question: Do you have any special 7-piece file that will make the 6-piece probing code fail/crash by some integer overflow or whatever? Would probably be useful for testing...
by RubiChess
Mon Aug 19, 2019 4:03 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7-piece - several questions
Replies: 7
Views: 1009

Syzygy 7-piece - several questions

Hi. I'm planning to update my engine supporting 7-piece syzygy. Currently it supports 6-piece and for that I have implemented/rewritten the interface code from https://github.com/syzygy1/tb/tree/master/interface some time ago. I know that https://github.com/jdart1/Fathom is up-to-date supporting the...
by RubiChess
Thu Aug 15, 2019 6:34 pm
Forum: Computer Chess Club: General Topics
Topic: TCEC standing
Replies: 4
Views: 560

Re: TCEC standing

The !fix command in TCEC gives the following hints to solve the problem: 1. Try Ctrl-F5 first. 2. Clear / purge all cached tcec page data. 3. Can also load tcec inside a private / incognito tab. 4. Beta site can also be used: https://tcecbeta.club/live.html (Navigate->BetaDev). 5. You can also try f...
by RubiChess
Sat Aug 10, 2019 7:01 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Using Link-Time-Optimization in mingw/gcc: Any experience?
Replies: 7
Views: 1816

Re: Using Link-Time-Optimization in mingw/gcc: Any experience?

End of story: I switch to clang which builds static windows binaries combining lto and profile instrumented optimization. This binary is smaller and even slightly faster than the gcc built binary. Build script is a little tricky using MSVC nmake and some llvm profiling tool that is not included in t...
by RubiChess
Wed Aug 07, 2019 12:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: msys mingw64 trouble
Replies: 9
Views: 1671

Re: msys mingw64 trouble

It is annoying that Jumbo needs some CygWin DLLs at runtime. Therefore I am trying to switch to MinGW64 under MSYS2 64bit, expecting a way to build a standalone binary that does not require additional DLLs apart from Windows system DLLs. First step was to use MSYS gcc. Build worked fine, no problem...
by RubiChess
Sun Aug 04, 2019 4:14 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: killer index by "ply" or "ply"
Replies: 16
Views: 3036

Re: killer index by "ply" or "ply"

This was discussed here: viewtopic.php?f=7&t=69744
I tested myself clearing the killers at ply+1 but couldn't make it work.

- Andreas
by RubiChess
Sun Aug 04, 2019 1:11 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Rubichess 1.5 64-bit Gauntlet for CCRL 40/40
Replies: 2
Views: 702

Re: Rubichess 1.5 64-bit Gauntlet for CCRL 40/40

As always a big thank you, Graham, for spending your CPU time.

-Andreas