Search found 272 matches

by silentshark
Sat Jun 13, 2020 8:35 pm
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2020
Replies: 275
Views: 56261

Re: New engine releases 2020

Oops, embarassing fix just published. Francesca 0.29a has been uploaded to my website (www.silentshark.co.uk). This hopefully fixes a bizarre bug which seemed to kick in on games where 'ponder mode' was on. Nothing else changed, so if you've used 0.29 without ponder, there should be no difference. P...
by silentshark
Sat Jun 13, 2020 8:32 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney June
Replies: 9
Views: 1337

Re: On-line engine blitz tourney June

Great tourny, thanks, and helped me find a stupid bug.

One of those ones where something random was in the code - god knows how it got there. Anyway, have hopefully fixed and uploaded a fresh version - Francesca 0.29a
by silentshark
Tue Jun 02, 2020 4:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Just found a 55 elo bug in SlowChess 2.1
Replies: 26
Views: 2403

Re: Just found a 55 elo bug in SlowChess 2.1

RubiChess wrote:
Tue Jun 02, 2020 9:20 am
You are a monster jonkr, still finding so many Elo lying around.
All the "bugs" I found lately lost Elo while fixing them :-(
Yeah, I know the feeling. I've got plenty of bugs, but just not the +50 ELO flavoured ones :-)
by silentshark
Tue Jun 02, 2020 4:19 pm
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2020
Replies: 275
Views: 56261

Re: New engine releases 2020

Francesca 0.29 is released today, June 1st. You can download from www.silentshark.co.uk Hi, is it possible legacy version is for older CPUs and fran.exe is with bmi2 instructions? (fran.exe here crashes on a core I7 ivy bridge) I think that's right. The version fran.exe is compiled with the /arch:A...
by silentshark
Tue Jun 02, 2020 4:17 pm
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2020
Replies: 275
Views: 56261

Re: New engine releases 2020

Dr.Wael Deeb wrote:
Mon Jun 01, 2020 8:17 pm
Thanks ....

A great chess program which plays extremely tactical chess against humans ....

Cheers,
Dr.D
Very kind words. Thank you :-)
by silentshark
Tue Jun 02, 2020 6:06 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Just found a 55 elo bug in SlowChess 2.1
Replies: 26
Views: 2403

Re: Just found a 55 elo bug in SlowChess 2.1

If anyone else has stories about surprisingly major bugs eventually found in a chess engine, feel free to share here. I continue to find bugs, but as you say sometimes fixing them gives little improvement, which is weird. I had a horrible bug a while back in my SEE, which meant the SEE was pretty r...
by silentshark
Mon Jun 01, 2020 6:12 pm
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2020
Replies: 275
Views: 56261

Re: New engine releases 2020

Francesca 0.29 is released today, June 1st. You can download from www.silentshark.co.uk From the readme file: "Lots of changes. Improved endgame recognition (helped by new way of tracking material). Small performance optimisations. Better concept of threat in the eval (pawn and minor piece threats)....
by silentshark
Wed May 20, 2020 9:22 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Sargon 1978 - Bringing it back to life
Replies: 23
Views: 2555

Re: Sargon 1978 - Bringing it back to life

What a fab thing to do! I sometimes think it would be interesting if we had access to versions of some of these classic progams in something like C, and could see what a few modern techniques would do to playing strength. So something like Sargon 3 with null move and LMR and LMP. How would that play...
by silentshark
Sat May 09, 2020 8:54 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Positional evaluation of your engine on this?
Replies: 7
Views: 662

Positional evaluation of your engine on this?



A silly position, mate in 1 to white.

My engine gives this kind of position a very high positional score +20.00 or similar, from king attacks mainly. What about yours?