Search found 394 matches

by xr_a_y
Mon Mar 25, 2019 12:22 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Chess Engine Olympiad. France.
Replies: 4
Views: 175

Re: Chess Engine Olympiad. France.

I guess Minic 0.43 shall be used for this tourney, newer release is not tested enough.

Best regards
by xr_a_y
Sun Mar 24, 2019 9:37 am
Forum: Computer Chess Club: General Topics
Topic: A complete 2000 lines of code engine
Replies: 90
Views: 9325

Re: A complete 2000 lines of code engine

I guess if anything ... this shows the importance of bug free code in a chess program. I think the first to show that was Fruit. While it is nice to have many features and many minor little tweaks to get the program to play "proper" chess ... bugs are the Achilles Heel of any chess program. Each ad...
by xr_a_y
Sun Mar 24, 2019 9:26 am
Forum: Computer Chess Club: General Topics
Topic: A complete 2000 lines of code engine
Replies: 90
Views: 9325

Re: A complete 2000 lines of code engine

yes 2600 elo ;-) : http://ccrl.chessdom.com/ccrl/404/cgi/e ... _43_64-bit

Thanks a lot too CCRL members for testing.
by xr_a_y
Sat Mar 23, 2019 11:30 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Deep mate question
Replies: 12
Views: 561

Re: Deep mate question

Ok got it.

Prunings are enabled in minic only if !ismatescore(Bêta)

Without this restriction the mate in Shirov position is found in 8sec but i guess this would lose elo.
by xr_a_y
Sat Mar 23, 2019 2:35 pm
Forum: Computer Chess Club: General Topics
Topic: A burning question
Replies: 6
Views: 307

Re: A burning question

Start to update the bios. For me it worked very well. Initial bios default voltage was total setting were strange.
by xr_a_y
Fri Mar 22, 2019 5:56 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Deep mate question
Replies: 12
Views: 561

Re: Deep mate question

Well g2g7 is not displayed in the analysis because in Minic I only disply at the end of the deepening loop. But if I print out the pv when bestmove change at root then g2-g7 is shown and window starts to grow. g2g7 then remains the TT move at root but the search never finish.
by xr_a_y
Thu Mar 21, 2019 7:43 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Deep mate question
Replies: 12
Views: 561

Re: Deep mate question

Dennis links are very interesting indeed. I must have something very wrong in Minic because it takes only 3 sec to find the good move, after that window is opened gradualy, but still quite fast, and only when the engine reach fully semi-opened window to search is slowing down and never finish althou...
by xr_a_y
Wed Mar 20, 2019 5:37 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Deep mate question
Replies: 12
Views: 561

Re: Deep mate question

D Sceviour wrote:
Wed Mar 20, 2019 5:14 pm
xr_a_y wrote:
Wed Mar 20, 2019 4:52 pm
And only 22M nodes to validate it ! this is very small for a depth 22 opened window search no ?
What do you mean by small? Every engine is different. Schooner happened to find this particular problem "easy".
There must be some bug in minic on this topic ...
by xr_a_y
Wed Mar 20, 2019 4:52 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Deep mate question
Replies: 12
Views: 561

Re: Deep mate question

Schooner v2.0.39 - 0.64 seconds to mate 24 +327.40 22.9M 0:06.39 g2g7 g8g7 g1g7 f7g7 d6e7 g7g8 e7e8 g8g7 h5h6 g7h6 e8f8 h6h5 f8f7 h5h4 f7h7 h4g3 h7g6 g3h2 e3f2 c6c5 f2f1 c5g1 g6g1 h2h3# 24 +327.32 2.2M 0:00.64 g2g7# 24 +28.05 2.2M 0:00.64 g2g7 24 +13.46 2.2M 0:00.64 g2g7 24 +7.06 2.2M 0:00.63 g2g7 ...
by xr_a_y
Wed Mar 20, 2019 4:27 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Deep mate question
Replies: 12
Views: 561

Deep mate question

Hi all, when Minic found a deep mate, like in this well known position [d] 6r1/2rp1kpp/2qQp3/p3Pp1P/1pP2P2/1P2KP2/P5R1/6R1 w - - at depth 20 (or even more), window is increasing size and reach [100, +MATE]. Everything before the last search with (semi-)opened window is quite fast but as soon as mate...