Search found 330 matches

by OliverBr
Tue Jan 29, 2008 3:04 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: The limits of "Just-mobility-evaluation"
Replies: 18
Views: 6679

The limits of "Just-mobility-evaluation"

This fine loss against Rybka shows where are the problems of the current evaluation (just mobility) of OliThink 5.0.8: In move 12 OliThink created a nice isolated triple pawn: rn1qk2r/pp3ppp/2p1p3/3p3n/3P1P1P/1PNB1P2/P1PQ1P2/R3K2R b KQkq - 0 12 It is evident that it will be nearly impossible to keep...
by OliverBr
Sat Jan 26, 2008 11:51 am
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

I disagree. I do not think that many programmers look at Crafty today when there are toga or strelka or glaurung. What is exactly the difference? I also do not believe that most programs are clones. Uri I don't think either that they are 100% clones, but why do you think most programms are not dist...
by OliverBr
Sat Jan 26, 2008 11:36 am
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

UCI is that important? I though xboard protocol is fine... Yes, UCI is important. It is easier to configure for people like me. The Analyze Mode is important too. I rarely play engine matches. If OliThink is "something different" then I would certainly look forward to using it in analysis. I wanted...
by OliverBr
Sat Jan 26, 2008 11:01 am
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

The strength of OliThink 5.0.8 64bit is amazing. Look at this 3minute blitz tournament: Engine Score Cr Ol He Ai GN Ol S-B 1: Crafty 26,5/30 ······ 1110=1 111111 111011 11=1=1 111111 331,50 2: OliThink508 20,0/30 0001=0 ······ 0=1111 1=0=11 011111 111101 236,25 3: Hermann 1.5 17,0/30 000000 1=0000 ...
by OliverBr
Sat Jan 26, 2008 11:00 am
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

If you add UCI, SEE and quiescent checks move generation, then Olithink would really have a great potential. UCI is that important? I though xboard protocol is fine... I had some tests with SEE and I am not happy. The improved move ordering only bring some percent. Yes. Quiescent Checks, this is on...
by OliverBr
Sat Jan 26, 2008 4:37 am
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

The strength of OliThink 5.0.8 64bit is amazing. Look at this 3minute blitz tournament: Engine Score Cr Ol He Ai GN Ol S-B 1: Crafty 26,5/30 ······ 1110=1 111111 111011 11=1=1 111111 331,50 2: OliThink508 20,0/30 0001=0 ······ 0=1111 1=0=11 011111 111101 236,25 3: Hermann 1.5 17,0/30 000000 1=0000 ·...
by OliverBr
Sat Jan 26, 2008 4:36 am
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

Change macro: #define HSIZE 0x800000 to be: #define HSIZE (0x800000>>1) and you will get 64 MB. Change macro: #define HSIZE 0x800000 to be: #define HSIZE (0x800000>>2) and you will get 32 MB. And then recompile You have to be careful for this, because in the hash table the stored data contains the ...
by OliverBr
Fri Jan 25, 2008 5:38 pm
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

Thanks for the hint. Links are corrected.

UCI and Analyze mode is interesting. I am working on it.
by OliverBr
Fri Jan 25, 2008 5:05 pm
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

Re: OliThink 5.0.8 released

Jim Ablett wrote:Hi Oliver,

Still version 5.0.7 downloads on your webpage.

regards,
Jim.
Hmmm... I see 5.0.8, perhaps a cache-problem?
by OliverBr
Fri Jan 25, 2008 3:57 pm
Forum: Computer Chess Club: General Topics
Topic: OliThink 5.0.8 released
Replies: 18
Views: 4804

OliThink 5.0.8 released

Download here:

http://home.arcor.de/dreamlike/chess/index.html

It is still small and easy, but improving in strength. It seems now to be stronger than any OliThink 4.
Any problems with arena should be solved, too.