Search found 3874 matches

by michiguel
Sat Apr 26, 2008 5:10 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: A request to engine authors
Replies: 23
Views: 6612

Re: A request to engine authors

Hi all, I like to run test games at a fixed number of nodes per move, because it improves reproducibility, and because it enables me to run other CPU-intensive tasks on the computer without influencing the results of the running tests. Unfortunately, it seems that almost no engine authors bother to...
by michiguel
Sat Apr 26, 2008 3:32 pm
Forum: Computer Chess Club: General Topics
Topic: Mate in 4 test...
Replies: 6
Views: 1701

Re: Mate in 4 test...

Graham Banks wrote:Hi Miguel,

any chance of a new Gaviota?

Regards, Graham.
Yes, I am working on it. I do not know when, but whenever I have a version worth releasing, I will do it.

Miguel
by michiguel
Sat Apr 26, 2008 5:21 am
Forum: Computer Chess Club: General Topics
Topic: Mate in 4 test...
Replies: 6
Views: 1701

Re: Mate in 4 test...

[D]8/3KpkPp/7B/8/8/8/8/8 w - - 0 1 Some of my programs (such as Junior 5) set at infinite mode have trouble with this mate in 4....! regards Robert Gaviota (AMD X2 +4600) sees it quickly. Miguel setboard 8/3KpkPp/7B/8/8/8/8/8 w - - 0 1 d +-----------------+ | . . . . . . . . | | . . . K p k P p | |...
by michiguel
Fri Apr 25, 2008 5:27 am
Forum: Computer Chess Club: General Topics
Topic: strelka 2.0
Replies: 116
Views: 39214

Re: Strelka 2.0

You said: "We would have a fraud if Osipov says, for example: "Strelka is an original engine", or "I am the author of that original engine". That would be a fraud because we would have a contradiction between a concept and the reality. But Osipov doesn´t say nothing of these, and that is the proble...
by michiguel
Thu Apr 24, 2008 5:19 pm
Forum: Computer Chess Club: General Topics
Topic: Khalifman-Barua, FIDE-Wch k.o. Las Vegas 1999
Replies: 10
Views: 2053

Re: Khalifman-Barua, FIDE-Wch k.o. Las Vegas 1999

[D] 8/6k1/p3b1p1/Pp1p3p/1P1P1P1P/4N1K1/8/8 w - - This seems very difficult but I think the move Khalifman played (f5) in fact is best. Arasan doesn't get this in any reasonable time but if I force f5 and then search it eventually starts to see that White is ahead. --Jon Now that I look at it better...
by michiguel
Thu Apr 24, 2008 3:38 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Iterative deepening does not always find the shortest mate
Replies: 15
Views: 4496

Re: Iterative deepening does not always find the shortest ma

That might not be feasible. If he finds a mate in 31 ply in a 21-ply search by sheer luck in hash replacements, it might not be able to find a mate in 29-ply on the next move before he actually reaches 29 ply, and might have forfeited on time long before that. Would it be possible, after finding th...
by michiguel
Wed Apr 23, 2008 6:51 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Iterative deepening does not always find the shortest mate
Replies: 15
Views: 4496

Re: Iterative deepening does not always find the shortest ma

That might not be feasible. If he finds a mate in 31 ply in a 21-ply search by sheer luck in hash replacements, it might not be able to find a mate in 29-ply on the next move before he actually reaches 29 ply, and might have forfeited on time long before that. That't right, but if I keep the proper...
by michiguel
Wed Apr 23, 2008 5:55 am
Forum: Computer Chess Club: General Topics
Topic: Khalifman-Barua, FIDE-Wch k.o. Las Vegas 1999
Replies: 10
Views: 2053

Re: Khalifman-Barua, FIDE-Wch k.o. Las Vegas 1999

[D] 8/6k1/p3b1p1/Pp1p3p/1P1P1P1P/4N1K1/8/8 w - - This seems very difficult but I think the move Khalifman played (f5) in fact is best. Arasan doesn't get this in any reasonable time but if I force f5 and then search it eventually starts to see that White is ahead. --Jon Now that I look at it better...
by michiguel
Wed Apr 23, 2008 5:35 am
Forum: Computer Chess Club: General Topics
Topic: Khalifman-Barua, FIDE-Wch k.o. Las Vegas 1999
Replies: 10
Views: 2053

Re: Khalifman-Barua, FIDE-Wch k.o. Las Vegas 1999

[D] 8/6k1/p3b1p1/Pp1p3p/1P1P1P1P/4N1K1/8/8 w - - This seems very difficult but I think the move Khalifman played (f5) in fact is best. Arasan doesn't get this in any reasonable time but if I force f5 and then search it eventually starts to see that White is ahead. --Jon Gaviota plays f5 in kaptop (...
by michiguel
Tue Apr 22, 2008 6:40 pm
Forum: Computer Chess Club: General Topics
Topic: Rxe5!
Replies: 15
Views: 3163

Re: Rxe5!

[d] 1rb4r/1pb3kp/p2q1pp1/2p1p3/P1B5/1P1P1Q2/1BP1RPPP/R5K1 w - - 0 21 How long does it take your engine to find it? :? I am not even sure this is good test. Every engine sees that after Rxe5 you cannot capture the rook. The question is what happens after black recovers the pawn at h2 and how the eng...