Search found 4025 matches

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: 1769

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: 1769

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: 1193

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: 999

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: 1745

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: 1745

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...
by syzygy
Sun Sep 01, 2019 6:46 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: deepdebt
Replies: 8
Views: 1643

Re: deepdebt

Henk wrote:
Tue Aug 20, 2019 10:00 am
One should have created a money machine first before spending dollars on research.
Otherwise it won't work.
So that's what Google did.
by syzygy
Fri Aug 30, 2019 12:08 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7 piece Machine slow down
Replies: 10
Views: 1745

Re: Syzygy 7 piece Machine slow down

Hi all thankyou very much. Yes it does appear that the main issue is far too little RAM. I've learnt a few things. Many thanks for all the help. Regards. In addition to increasing SyzygyProbeDepth, you could try disabling the Windows pagefile (which I suppose is on the non-SSD C drive). Most likely...
by syzygy
Sat Aug 24, 2019 4:13 pm
Forum: Computer Chess Club: General Topics
Topic: Where did all these 3400 engines come from?
Replies: 40
Views: 4940

Re: Where did all these 3400 engines come from?

Hello all, I've been getting into computer chess again after a long hiatus due to family responsibilities. Raising 3 children on your own is tough work, so if you had a single Parent at any point in your life, thank them for putting you first before everything. On a side note, where did all these 3...
by syzygy
Wed Aug 14, 2019 8:00 pm
Forum: Computer Chess Club: General Topics
Topic: Does computer chess sponsorship exist?
Replies: 24
Views: 2823

Re: Does computer chess sponsorship exist?

According to talkchess posts, Houdini was sponsored by an Arab Sheikh. I don't have any direct knowledge of that. I thought that was Hydra. They did that one too. Don't think it was Houdini. It was a program by Chrilly Donninger. Houdini has not participated in the usual computer chess tournaments,...