Search found 290 matches

by OliverBr
Fri Jul 10, 2020 3:34 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code
Replies: 32
Views: 1797

Re: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code

Finally Olithink 5.5.2 has been released. The most interesting new feature is the ability to beat anyone easily in BNK vs K endgame. Example: [Event "Computer Chess Game"] [Site "Olivers-MacBook-2.local"] [Date "2020.07.10"] [Round "-"] [White "OliThink 5.5.2"] [Black "Stockfish 11 64 BMI2"] [Result...
by OliverBr
Tue Jul 07, 2020 6:25 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: 80th Amateur Series Division 7
Replies: 8
Views: 207

Re: 80th Amateur Series Division 7

Hi Graham,

thank you for this great tournament.

I have tried to connect to GrahamCCRL.dyndns.org, Port 16001 with the Chess viewer, but I get a "Connection failed. No response from server." each time.
Can you help?

Thank you!
by OliverBr
Mon Jul 06, 2020 7:21 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code
Replies: 32
Views: 1797

Re: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code

Dann Corbit wrote:
Sun Jul 05, 2020 10:35 pm
It does not take a lot of code to connect to the Syzygy tablebase files. Proven Elo increase (as opposed to other formats where most experiments show neutral Elo effect).
This is my idea, too. It's the last missing piece that should improve the engine notably with additional little code.
by OliverBr
Sun Jul 05, 2020 9:31 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code
Replies: 32
Views: 1797

Re: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code

OliThink plays a decent midgame, but still the endgame is not good yet. In 100 games against Glaurung 2.1 (17.0 to 83.0) OliThink has not won a single endgame. More than half of the games are open until endgame. Of the 9 times OliThink won, none of them were endgame wins. Example: [Event "Computer C...
by OliverBr
Sun Jul 05, 2020 8:03 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code
Replies: 32
Views: 1797

Re: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code

OliThink 5.5.0 has been released today.

Most notable change is the refactoring of time management and parts of the search function.
by OliverBr
Sat Jul 04, 2020 9:35 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code
Replies: 32
Views: 1797

Re: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code

tmokonen wrote:
Fri Jul 03, 2020 6:19 pm
It looks like the links for the Java version are out of date. The site says 5.4.11, but the links point to 5.4.6.
Thank you for the hint. I already corrected this before.
by OliverBr
Fri Jul 03, 2020 2:17 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code
Replies: 32
Views: 1797

Re: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code

I'm thinking shared hash is next. I want to see Olithink mop the floor against the big boys with under 100K of code. No pressure though. :twisted: It's quite difficult to increase strength without expanding code. I omitted a couple of ideas just because they were "too expensive" or "too expansive" :)
by OliverBr
Fri Jul 03, 2020 8:04 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code
Replies: 32
Views: 1797

Re: OliThink 5.4.0 has been published with an big leap in strength for only 3 lines of code

OliThink 5.4.13 released.
The frist time I changed something with the very simple Hash(TT)Tables. By this way I doubled the memory usage from 48MByte to 96Mbyte 8-)
by OliverBr
Tue Jun 30, 2020 4:13 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Open Swiss Edition III
Replies: 59
Views: 2118

Re: Open Swiss Edition III

The GUI terminates a game by sending: result RESULTSTRING {COMMENT} Actually OliThink (including 5.4.10) gets in trouble, when the result is sent after the opponent's last move, when OliThink already startet calculating. The resign feature of the polyglot adapter of works this way, which is problem...
by OliverBr
Mon Jun 29, 2020 9:16 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Open Swiss Edition III
Replies: 59
Views: 2118

Re: Open Swiss Edition III

The GUI terminates a game by sending: result RESULTSTRING {COMMENT} Actually OliThink (including 5.4.10) gets in trouble, when the result is sent after the opponent's last move, when OliThink already startet calculating. The resign feature of the polyglot adapter of works this way, which is problem...