Search found 3874 matches

by michiguel
Tue Apr 22, 2008 6:32 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Iterative deepening does not always find the shortest mate
Replies: 15
Views: 4491

Re: Iterative deepening does not always find the shortest ma

I have implemented basic iterative deepening (not internal ID), and if at the completion of any iteration the score indicates a forced mate against the human, the search stops with that iteration. I don't bother to keep searching, even if there is time remaining. In any iteration, the shortest mati...
by michiguel
Mon Apr 21, 2008 1:34 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Question for Chess Players...is this rule true?
Replies: 6
Views: 2352

Re: Question for Chess Players...is this rule true?

A piece becomes more powerful the less pieces of lower value the opponent has. Is this true? For example, the fewer minor pieces an opponent has (knights and bishops), the more powerful its rook becomes. Testing seems to show this, but I am way too lazy to wait for the thousands of games I might ne...
by michiguel
Fri Apr 18, 2008 8:21 am
Forum: Computer Chess Club: General Topics
Topic: Dead End for Computer Chess? Some ideas...
Replies: 26
Views: 6242

Re: Dead End for Computer Chess? Some ideas...

PG In reality I own three different Basic compilers but only one was developed for windows and yes even compiled they are much slower than "C". As I said I understand C a little but have never been able to compile a program written in it. Bill Bill, In case you change your mind, this compiler and G...
by michiguel
Thu Apr 17, 2008 7:32 pm
Forum: Computer Chess Club: General Topics
Topic: 2008 ACCA President's Compter Chess Tournament
Replies: 25
Views: 5073

Re: 2008 ACCA President's Compter Chess Tournament

Hi Miguel, Also, you could have an operator. Then be online yourself for the time that you can. Getting a trial account would be ok? (7 days apparently in ICC) How do you connect to ICC with Xboard? (or where to find this information?) I browsed ICC website and I could not find it. Is the informati...
by michiguel
Thu Apr 17, 2008 2:15 pm
Forum: Computer Chess Club: General Topics
Topic: 2008 ACCA President's Compter Chess Tournament
Replies: 25
Views: 5073

Re: 2008 ACCA President's Compter Chess Tournament

Hi Miguel, Also, you could have an operator. Then be online yourself for the time that you can. Getting a trial account would be ok? (7 days apparently in ICC) How do you connect to ICC with Xboard? (or where to find this information?) I browsed ICC website and I could not find it. Is the informati...
by michiguel
Thu Apr 17, 2008 12:25 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Stress test for hashtable, checkmates, node counting.
Replies: 13
Views: 3645

Re: Stress test for hashtable, checkmates, node counting.

tellics say Joker 1.1.14 (f) tellics say Winboard version tellics say by H.G. Muller tellics say Hash size = 256MB post new setboard 8/8/8/8/3k4/8/8/4K2R w - - 0 1 level 40 40 0 time 5000000 go tell - - - - - - - - - - - - tell - - - - - - - - - - - - tell - - . . . . . . . . - - tell - - ....
by michiguel
Thu Apr 17, 2008 12:16 am
Forum: Computer Chess Club: General Topics
Topic: 2008 ACCA President's Compter Chess Tournament
Replies: 25
Views: 5073

Re: 2008 ACCA President's Compter Chess Tournament

The 2008 ACCA President's Tournament will be on April 19. It is limited to engines whose authors reside and/or have citizenship in any country of the Eastern hemisphere. It will be a one day blitz tournament. Registration and info pages can be found here: http://www.taccl.org/ACCAPresidentsTourname...
by michiguel
Wed Apr 16, 2008 4:37 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Voting techniques in move ordering
Replies: 4
Views: 1448

Re: Voting techniques in move ordering

Voting techniques in move ordering Consider that there are a half dozen or more traditional techniques for ordering selections in an A/B search. Some of these techniques only produce a single move, and some aren't available in all situations. But usually there are several selection techniques that ...
by michiguel
Tue Apr 15, 2008 11:03 pm
Forum: Computer Chess Club: General Topics
Topic: Bruja 1.9 x64/win32 JA builds available
Replies: 10
Views: 2829

Re: Bruja 1.9 - Resp 0.19 - Scid 3.61

Hi Jim, Gaviota 0.22 performed much better than Gaviota 0.33 in my recent tests: approx. min 200 points. Could you perhaps take a look at Gaviota's code and produce new compiles of 0.22 and 0.33? Gaviota 0.33 is a very good engine. Only one drawback: After some good 30 moves, 0.33 makes illegal mov...
by michiguel
Mon Apr 14, 2008 9:58 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Stress test for hashtable, checkmates, node counting.
Replies: 13
Views: 3645

Re: Stress test for hashtable, checkmates, node counting.

Anatoli finds mate in 13 in approx 25 seconds on my machine (AMD 64 X2 4000+, 1 core) at depth 25. That it immediately finds a shortest mate is luck, though. Usually if will find a longer mate first and then it will stop (unless it is pondering). It's a lazy engine and mate is mate and it doesn't b...