Search found 220 matches

by WinPooh
Mon Feb 13, 2017 1:52 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Checkers Is Strongly-Solved for 8-pieces
Replies: 98
Views: 35666

Re: Checkers Is Strongly-Solved for 8-pieces

If I recall correctly, Chinook could only play perfectly from the initial position. In other words, it stores main PV and all refutations for non-PV moves from his opponent. This requires much less storage than complete game tree.
by WinPooh
Tue Jan 17, 2017 9:38 am
Forum: Computer Chess Club: General Topics
Topic: GreKo 2016 released!
Replies: 10
Views: 3405

Re: GreKo 2016 released!

Could you please provide the whole PGN as a plain text?
My browser (Firefox 45.6.0) shows nothing but initial position on the board.
by WinPooh
Tue Jul 12, 2016 10:47 am
Forum: Computer Chess Club: General Topics
Topic: GreKo 2015 ML
Replies: 4
Views: 1309

Re: GreKo 2015 ML

During games learning is off, this is a tool for auto-tuning evaluation weights. It is always initiated manually by user.
by WinPooh
Tue Jul 12, 2016 10:01 am
Forum: Computer Chess Club: General Topics
Topic: GreKo 2015 ML
Replies: 4
Views: 1309

GreKo 2015 ML

I have added elements of machine learning to GreKo.
New version is available:
http://greko.su/greko-2015-ml.zip

This is GreKo 2015 with tuned evaluation weights and built-in "learn" command.
See details in history.txt.
by WinPooh
Sat Feb 06, 2016 9:19 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: 57th Amateur Series Division 5
Replies: 18
Views: 2569

Re: Standings after Round 24 of 44

Graham Banks wrote:Host - GrahamCCRL.dyndns.org Port - 16053
Can't connect for last 2-3 days.
by WinPooh
Wed Oct 07, 2015 1:55 pm
Forum: Computer Chess Club: General Topics
Topic: GreKo 13.1
Replies: 5
Views: 1309

GreKo 13.1

http://greko.su/greko-13.1.zip

Version 13.1
------------
07-Oct-2015

(fix) * Fixed possible bug in conditions for KBP-K endgame recognition.
(new) * Different weights for pawns in opening/middlegame/endgame: 80...120.
by WinPooh
Mon Oct 05, 2015 7:38 am
Forum: Computer Chess Club: General Topics
Topic: Greko 12.9
Replies: 43
Views: 9118

Re: Greko 12.9

Yes, now I see the error. The conditions should be: if (pos.MatIndex(WHITE) == 3 && pos.Count(PW) == 1 && pos.Count(BW) == 1 ) and if (pos.MatIndex(BLACK) == 3 && pos.Count(PB) == 1 && pos.Count(BB) == 1 ) Probably when I wrote this code I wanted to check KBP-K and KNP-K for draw with a/h pawn simul...
by WinPooh
Mon Oct 05, 2015 7:11 am
Forum: Computer Chess Club: General Topics
Topic: Greko 12.9
Replies: 43
Views: 9118

Re: Greko 12.9

if (pos.MatIndex(WHITE) == 3 && pos.Count(PW) == 1) { if (pos.MatIndex(BLACK) == 0 && pos.Count(PB) == 0) All conditions are correct. 1. White has one and only one minor piece (N = B = 3 for material index). 2. White has only one pawn. 3. Black h...
by WinPooh
Mon Oct 05, 2015 7:07 am
Forum: Computer Chess Club: General Topics
Topic: Greko 12.9
Replies: 43
Views: 9118

Re: Greko 12.9

Does not crash for me: GreKo 13.0 (01-Oct-2015) main hash: 2097152 nodes = 32.0 MB book.bin: 484 nodes White(1): setboard 4k3/4p3/8/8/3p4/8/4N3/4KB2 w - - 0 2 White(2): analyze 4k3/4p3/8/8/3p4/8/4N3/4KB2 w - - 1 749 1 12 2. Nxd4 2 747 1 48 2. Nxd4 e5 3. Bb5+ Ke7 3 747 1 175 2...