Search found 4029 matches

by syzygy
Mon Nov 04, 2019 11:06 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Sysygy Shatranj?
Replies: 4
Views: 594

Re: Sysygy Shatranj?

Would it be trivial to adapt the Syzygy EGT generator for Shatranj? Or would it be easier to just write a dedicated generator for that? I am only interested in the WDL statistics of a few specific 6-men end-games (KRFE-KR and KFF-KFE). I don't need the tables itself, so I don't care about compressi...
by syzygy
Sun Oct 27, 2019 1:46 pm
Forum: Computer Chess Club: General Topics
Topic: longest 6-man EGTB win
Replies: 40
Views: 1802

Re: longest 6-man EGTB win

Anyone have a list of positions of the longest 6-man EGTB wins that meet 50 move rule requirements? I.E. no cursed wins allowed I think to do this accurately, you must have the complete Lomonosov files. They have distance to mate. But they don't take into account the 50-move rule. Whenever they sho...
by syzygy
Sat Oct 26, 2019 11:09 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Another take on DTS?
Replies: 20
Views: 1358

Re: Another take on DTS?

Hello everyone, I am surprised to see currently so few interests in Dynamic Tree Splitting in comparison with Lazy SMP. Is it because DTS seems to be adapted to multiprocessors or large-scale network while Lazy SMP is for multithreading? Is there any scientific or empirical comparison between the t...
by syzygy
Sat Oct 26, 2019 11:01 pm
Forum: Computer Chess Club: General Topics
Topic: longest 6-man EGTB win
Replies: 40
Views: 1802

Re: longest 6-man EGTB win

Anyone have a list of positions of the longest 6-man EGTB wins that meet 50 move rule requirements? I.E. no cursed wins allowed Regards, Zenmastur I think to do this accurately, you must have the complete Lomonosov files. They have distance to mate. But they don't take into account the 50-move rule...
by syzygy
Fri Oct 04, 2019 10:01 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy DTZ data explaination?
Replies: 9
Views: 2439

Re: Syzygy DTZ data explaination?

Can you help me confirm what I have just guessed for the above case (position K7/8/8/8/8/2R5/8/7k b - - 0 1) 1) All raw data DTZ of all three black-King moves (Kg1, Kg2, Kh2) has the same rank -1000 (losses with little chance to reach the 50-move rule) Your position has three moves, all losing with...
by syzygy
Mon Sep 30, 2019 11:42 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy DTZ data explaination?
Replies: 9
Views: 2439

Re: Syzygy DTZ data explaination?

The problem has not been solved yet as I thought: Indicating repetition to Fathon code does not always give me enough information. I don't know what Fathom does, but in Stockfish ranks work as follows (it may be the same for Fathom). If the current position is in the TBs, each move is assigned a ra...
by syzygy
Sat Sep 28, 2019 12:00 pm
Forum: Computer Chess Club: General Topics
Topic: Lomonosov - what is the mate-distance...
Replies: 16
Views: 1541

Re: Lomonosov - what is the mate-distance...

Online Syzygy is a mess. It's crap. Not the shortest way to mate. In your pgn 11.Nb1? is -8# (11...g3 8#) , best is 11.Kb2 -12# (6 men Nalimov), your 12.Nd2 (-6#) lost another move, best: 12.Kb2 -7# (12...g2 7#) 13.Nb1? best is 13.Kb1 After 13.Nb1 is g1Q mate in 4 , not your 13...h4 ( mate in 7 ) I...
by syzygy
Mon Sep 16, 2019 8:50 pm
Forum: Computer Chess Club: General Topics
Topic: What kind of game is chess?
Replies: 12
Views: 1223

Re: What kind of game is chess?

LC0 is weak at tactics. But it knows that, and has learned it should better avoid tactically complex positions. Has it really learned that? That would mean it evaluates positions asymmetrically. Do we know that it does that? Conventional engines are good at tactics. But they are not aware of that. ...
by syzygy
Thu Sep 12, 2019 10:43 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7 piece Machine slow down
Replies: 10
Views: 1986

Re: Syzygy 7 piece Machine slow down

Thanks again and for your patience. I'm using Stockfish and have removed the cache setting. I tried disabling the windows paging file but the computer has problem starting up. So I have had to leave the windows paging file back on and have increased the HASH to 14GB and re-tested. Seems fine, but c...
by syzygy
Thu Sep 05, 2019 7:44 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7 piece Machine slow down
Replies: 10
Views: 1986

Re: Syzygy 7 piece Machine slow down

I was even having issues with 6-piece tb prior to this. My solution for 6-piece on my machine is to set my HASH to 9 GB, and the cache setting to 1 GB. (Leaves 8GB of the 9GB HASH for the machine to work well.) I'm not sure what you mean by "cache setting". If this is about the Nalimov cache (don't...