Search found 209 matches

by Kotlov
Tue Feb 19, 2019 9:01 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Shift and Address included into Magic number
Replies: 4
Views: 1878

Re: Shift and Address included into Magic number

Is this faster than your fixed shift approach introduced one year ago? http://www.talkchess.com/forum3/viewtopic.php?t=66538 Hi, Gerd. The only thing for sure is not slower. To be more precise, more tests are needed to select computational functions for a specific compiler. Ideally, an assembler is...
by Kotlov
Tue Feb 19, 2019 9:21 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: categorical cross entropy for value
Replies: 7
Views: 2194

Re: categorical cross entropy for value

The value of a draw can be dependent on circumstances outside the game. Such as results of previous games in a match. If you can only be aware of 'expected average result', there is no way to distinguish between risky ways to get a better result and risk-free ways. I distinguish equal position from...
by Kotlov
Mon Feb 18, 2019 1:14 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Shift and Address included into Magic number
Replies: 4
Views: 1878

Shift and Address included into Magic number

const U64 r_magic[64]= { 0xd1800040008053ea,0xd48020004000f383,0xd700084020013500,0xd600084022007292, 0xd500080003009331,0xd600020008049b50,0xd50001000400fa00,0xd10000810000d3e6, 0xd64c80004000a39b,0xda03004000806f01,0xd802001022004b80,0xd802001020408e00, 0xd81880430a087ffe,0xd82900080c00ab00,0xd84...
by Kotlov
Mon Feb 04, 2019 10:14 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: TLCV-compatible web viewer
Replies: 2
Views: 771

Re: TLCV-compatible web viewer

I think Twitch is best solution.
by Kotlov
Wed Jan 30, 2019 12:15 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: 72nd Amateur Series Division 9
Replies: 12
Views: 1704

Re: 72nd Amateur Series Division 9

Did not have time to compile new better version.
Is it possible to replace now?
by Kotlov
Mon Dec 31, 2018 6:14 pm
Forum: Computer Chess Club: General Topics
Topic: GreKo 2018
Replies: 5
Views: 1679

Re: GreKo 2018

С новым годом, с новым Греко! ))
by Kotlov
Mon Dec 31, 2018 6:02 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Bitboard question (from xiphos code)
Replies: 9
Views: 2006

Re: Bitboard question (from xiphos code)

D Sceviour wrote:
Mon Dec 31, 2018 4:51 pm
This a very fast way of finding the en passant square for either move color. I have never seen the use of XOR (sq ^ 8) in any other code before. Is Xiphos the first to use this?
No, is ordinary.
by Kotlov
Fri Nov 30, 2018 8:24 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Super Tournament XXXI 1CPU
Replies: 12
Views: 3315

Re: Super Tournament XXXI 1CPU

Most of my testing is for CCRL 40/40 1CPU and 4CPU. I only run the 8CPU tourneys and matches occasionally, but even though I try to give most engines a run, I just get the impression that 8CPU testing is no longer something special. My main motivation for testing has always been personal enjoyment ...
by Kotlov
Sat Nov 24, 2018 5:47 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Enjoying GM Alex Yermolinsky's analysis
Replies: 3
Views: 1668

Re: Enjoying GM Alex Yermolinsky's analysis

ker2x wrote:
Wed Nov 21, 2018 9:57 am
Aldus wrote:
Tue Nov 20, 2018 12:50 am
He has a very funny accent.
Russian accents are the best :oops:
Grischuk and Kramnik best Russian accents ever.