Search found 481 matches

by jhellis3
Sat May 30, 2020 3:36 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish_dev is probably stronger than Sargon 1978 v1.00
Replies: 23
Views: 4476

Re: Stockfish_dev is probably stronger than Sargon 1978 v1.00

FWIW, Crystal doesn't LMP the PV, so one might expect results similar to Komodo.
by jhellis3
Fri May 22, 2020 4:23 am
Forum: Computer Chess Club: General Topics
Topic: This is a draw, how long does your Stockfish take to see a draw!( Black turn)
Replies: 14
Views: 1499

Re: This is a draw, how long does your Stockfish take to see a draw!( Black turn)

Do these stockfish's really know the position is drawn, or do they just have some hacked eval modification that equates a lack of progress to a draw.
Surely, a search based result is more reliable than eval.
by jhellis3
Tue Apr 21, 2020 7:00 pm
Forum: Computer Chess Club: General Topics
Topic: What is discord?
Replies: 6
Views: 1363

Re: What is discord?

It is a fancy chat room which supports voice, used by gamers quite a bit
by jhellis3
Tue Apr 21, 2020 4:02 am
Forum: Computer Chess Club: General Topics
Topic: Crystal Update
Replies: 39
Views: 9269

Re: Crystal Update

Ok, I was able to track down the issue with the Rc1 position and fix the regression there. The second position I consider more or less resolved as well. When fed the position after Kh8, it properly detects the queen stalemate and eventually switches over to promoting to rook. This takes a little bit...
by jhellis3
Fri Apr 17, 2020 11:49 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal Update
Replies: 39
Views: 9269

Re: Crystal Update

I don't think so? For a second I thought I must have missed something, but playing through alternate lines.... Again, I see no reason for promoting to a queen to be a draw. EDIT: OK, I found it. Indeed a stalemate issue 4 ply from the end, the queen can not recapture the bishop without delivering st...
by jhellis3
Fri Apr 17, 2020 11:34 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal Update
Replies: 39
Views: 9269

Re: Crystal Update

Ok, this one I was suspicious of and rightfully so. Unless there is some obvious immediate reason to under promote then queen should be fine. My clue was the fact that the only difference between queen and rook is the diagonal attack which is blocked by its own pawn. So I played out the winning line...
by jhellis3
Fri Apr 17, 2020 2:07 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal Update
Replies: 39
Views: 9269

Re: Crystal Update

Thanks for the position and for the hint that matefinder sees it. There is really only a couple of things it could be, and I have a pretty good idea which one it is. Will see if I can do something about it.....
by jhellis3
Thu Apr 16, 2020 6:42 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal Update
Replies: 39
Views: 9269

Re: Crystal Update

I hope You have looked at Houdini 6 tactical mode source. It solves some tactics still faster than Crystal even being from 2017! To be honest, I doubt I will. While the code is GPL, it was undoubtedly not intended to be public, and I have no way of knowing if all of the ideas present are genuinely ...
by jhellis3
Wed Apr 15, 2020 11:32 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal Update
Replies: 39
Views: 9269

Re: Crystal Update

Thanks for the kind words. I don't really have the setup to provide high quality cross compiles... But I wouldn't bother with the minor updates for now. I'm still actively working on it and SF dev is going at a rapid pace. Once things slow down a bit and I am confident I have everything I want in fo...
by jhellis3
Mon Apr 13, 2020 9:05 pm
Forum: Computer Chess Club: General Topics
Topic: An Old Engine
Replies: 62
Views: 13236

Re: An Old Engine

Better contact Microsoft/Github while you are at it....

The "security" reminds me of Helios & artificial aiming. Each copy of the cheat software is registered to an individuals computer. The guy selling the aimbot didn't wan't to get *cheated* out of his money...