Search found 1209 matches

by mjlef
Fri Jun 08, 2007 7:14 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Help Finding X
Replies: 9
Views: 4716

Re: Help Finding X

Hi Mark, First thing that comes to mind is the 50 move rule. That certainly sets a maximum. Other than that, SCID and the Chessbase database that comes with all their programs. Charles Thanks for the suggestions. Of course, pretty much all programs already have the 50 move rule in them (as does min...
by mjlef
Fri Jun 08, 2007 5:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Help Finding X
Replies: 9
Views: 4716

Help Finding X

In the endgame, many positions are hopeless draws which can almost be determined via static analysis, after a certain depth of conversion. For example. lets say we get down to K&R vs K&R. Unless one side has a K and R along the same file or column, apart a bit, the other side can only get a draw (in...
by mjlef
Thu Jun 07, 2007 1:11 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Pro Deo 1.5
Replies: 10
Views: 5865

Re: Pro Deo 1.5

Hmmm... I wonder if that is what all that data is in Rybka? Bonuses for lines it tends to win more in.
by mjlef
Thu Jun 07, 2007 1:05 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Revisiting Check Extensions
Replies: 18
Views: 10562

Re: Revisiting Check Extensions

I tried something like that a long time ago (not extending checks if way ahead in material). I did not such a high margins (8 pawns) though, so that might matter a lot. I did steal Tord's idea of not including chekcs in the qsearch if way ahead in material...I have not idea if it helps, but it makes...
by mjlef
Thu Jun 07, 2007 9:25 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Revisiting Check Extensions
Replies: 18
Views: 10562

Revisiting Check Extensions

Most programs I have seen seem to extend checks exactly one full ply. Some also extend one reply to checks another full ply (or sometimes less). A very few use an extession of 3/4 a ply. In my continuing experiments in my program, I have tried to come up with different criteria, and in testing they ...
by mjlef
Tue May 29, 2007 12:11 pm
Forum: Computer Chess Club: General Topics
Topic: Participants WCCC 2007
Replies: 108
Views: 48941

Re: Participants WCCC 2007

Gerd Isenberg wrote: No idea whether the Sleep In still exist, but no need to take an expensive hotel. There are nice camping sites near by.
Ah, but do the camp site have electric sockets and high speed Internet access! Programmers will wither and die without them!
by mjlef
Sat May 19, 2007 2:23 pm
Forum: Computer Chess Club: General Topics
Topic: Kamsky's notebook failure
Replies: 2
Views: 1359

Re: Kamsky's notebook failure

He is supposed to get another notebook tomorrow, and I will help him install the software on it. (I live in Sofia).
by mjlef
Sat May 19, 2007 2:20 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: winboard/ICC issue
Replies: 4
Views: 3497

Re: winboard/ICC issue

I have also seen another strange thing on ICC. I will +noplay a player (so I can play another program and make sure the program does not automatically accept a game from them), but after a game, ICC will start another game with the last opponent. I have had to disconnect to just prevent an endless n...
by mjlef
Wed May 16, 2007 1:41 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: a beat b,b beat c,c beat a question
Replies: 9
Views: 6394

Re: a beat b,b beat c,c beat a question

The solution is simple, never, ever play version X+2 of any program versus version X and cause this loop of confusion. If you do this it will just give you a headache! I know it has me!
by mjlef
Wed May 16, 2007 10:02 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Toga II 1.3 with HT=80
Replies: 2
Views: 1364

Re: Toga II 1.3 with HT=80

According to http://www.computerchess.org.uk/ccrl/404/ HT=80 is the best Toga version. I played 6*20 games against same engines to check. First default (HT=75): Toga II 1.3 - Rybka 2.3.1 32-bit 7.0 - 13.0 +5/-11/=4 35.00% Toga II 1.3 - Fritz 10 7.5 - 12.5 +5/-10/=5 37.50% Toga II 1.3 - Deep Sjeng 2...