Search found 681 matches

by duncan
Sun Dec 02, 2012 2:26 pm
Forum: Computer Chess Club: General Topics
Topic: expert understanding of computer chess
Replies: 8
Views: 1972

Re: Expert understanding of computer chess.

Your proposal is very tricky IMHO because each engine outputs a different depth... I mean, search depths are not equivalent between engines. The most extreme case that comes to my mind right now are Rybka and Stockfish among top engines. If you play a fixed depth match between Rybka and Stockfish, ...
by duncan
Sun Dec 02, 2012 1:33 pm
Forum: Computer Chess Club: General Topics
Topic: expert understanding of computer chess
Replies: 8
Views: 1972

expert understanding of computer chess

if you had houdini or any top engine play itself at 10 plys, 11plys, 12 plys etc until 24 plys. 10 games were played for each ply making a total of 150 games. a grandmaster looks at all the games (totally mixed up)without computer help. and has to work out what ply each game was played at. He gets a...
by duncan
Wed Mar 28, 2012 11:01 pm
Forum: Computer Chess Club: General Topics
Topic: NEWS: FinalGen chess endgame tablebase generator.
Replies: 49
Views: 43008

Re: Hi

I tried using the software for a rook against 5 pawns, to see whether it would be a draw. the following position should be a draw and it was. [D]4k3/4r3/8/8/8/8/PPPPP3/4K3 w - - 0 1 there seems to be 3 conditions for white to win (1)you need at least 2 pawns on the third rank (although only certain ...
by duncan
Wed Mar 28, 2012 10:45 pm
Forum: Computer Chess Club: General Topics
Topic: NEWS: FinalGen chess endgame tablebase generator.
Replies: 49
Views: 43008

Re: Hi

pPerez wrote:
I tried out this position as I was interested in how many months/years it would take
[D]4k3/2pppppp/8/8/8/8/2PPPPPP/4K3 w - - 0 1



and the program said 'this position is too complex'. is that a limitation of the software or my computer ?
by duncan
Fri Jan 13, 2012 10:12 am
Forum: Computer Chess Club: General Topics
Topic: Opening: Can White Get A Sustainable Advantage?
Replies: 6
Views: 1038

Re: Opening: Can White Get A Sustainable Advantage?

While it's not possible to PROVE that chess is not a win for black, IMO it can be safely discounted. . if black gives up a knight at the beginning, it is a win for white. do you know if it can be proven though, or merely safely discounted that white would not win and would be either a draw or even ...
by duncan
Wed Jul 28, 2010 1:39 pm
Forum: Computer Chess Club: General Topics
Topic: understanding the knight bishop mate
Replies: 32
Views: 5858

Re: understanding the knight bishop mate

Of course not. But the issue is to win the game, not announce mate at the first position... The problem is winning inside 50 moves, but it can be done if a program has something that tells it which corner to drive the losing king to, and if it knows that its own king has to participate. if you took...
by duncan
Tue Jul 27, 2010 5:34 pm
Forum: Computer Chess Club: General Topics
Topic: understanding the knight bishop mate
Replies: 32
Views: 5858

Re: understanding the knight bishop mate

Crafty does these easily. Not in minimal number of moves, but certainly without violating the 50 move rule and turning this into a draw. I tried it on crafty. It got it in the minimum 33. [Event "Computer chess game"] [Site "DESKTOP"] [Date "2010.07.27"] [Round "-"] [White "Crafty-19.17"] [Black "C...
by duncan
Tue Jul 27, 2010 1:15 pm
Forum: Computer Chess Club: General Topics
Topic: understanding the knight bishop mate
Replies: 32
Views: 5858

Re: understanding the knight bishop mate

My hardware is quite primitive by todays standards though. I would like to install the Stockfish engine for Linux but I do not how to use the makefile provided. :( For help, just type "make help". You likely want to run: "make profile-build ARCH=x86-32" or for very very old hardware "make profile-b...
by duncan
Tue Jul 27, 2010 12:52 pm
Forum: Computer Chess Club: General Topics
Topic: understanding the knight bishop mate
Replies: 32
Views: 5858

Re: understanding the knight bishop mate

There are seven winning moves four of which lead to mate in 33 and the other three lead to mate in 34. Fruit prefers Bg4, Ba4 & Be8 (mate in 34) before finally settling on Bh3 (mate in 33) after 2 mins 37 secs. My hardware is quite primitive by todays standards though. I would like to install the S...
by duncan
Tue Jul 27, 2010 11:53 am
Forum: Computer Chess Club: General Topics
Topic: understanding the knight bishop mate
Replies: 32
Views: 5858

understanding the knight bishop mate

[d] K7/2kB4/8/8/8/8/8/5N2 w

which engine would good at finding the mate in 33 here without using tablebases. ?




duncan