Search found 10 matches
- Tue Nov 07, 2023 12:55 am
- Forum: Endgame Tablebases
- Topic: Chess engines can soon simulate tablebases for any number of pieces?
- Replies: 2
- Views: 27367
Chess engines can soon simulate tablebases for any number of pieces?
With engines and computing power so strong now, can we assume that one day not too far in the future that chess engines, if we allow them ample time to compute, can "simulate" a tablebase for any number of pieces? For example, take any position (even possibly the starting position), let th...
- Sat Feb 28, 2015 11:59 pm
- Forum: Endgame Tablebases
- Topic: Is there a way to rank the drawing moves?
- Replies: 10
- Views: 67803
Re: Is there a way to rank the drawing moves?
What about the endgame tablebase generator reordering the drawing moves during generation of the files? I haven't studied the codes for the generators, but suppose the drawing moves are stored in a std::list. Then during generation, instead of inserting the drawing moves at the end of each list, ins...
- Sat Feb 28, 2015 3:49 pm
- Forum: Endgame Tablebases
- Topic: Is there a way to rank the drawing moves?
- Replies: 10
- Views: 67803
Re: Is there a way to rank the drawing moves?
That's right. I never suggested increasing the file sizes to support this feature, which should be executable during run-time. Engines are not running during tablebase look-up anyway, so what would be the loss really? Simply list the drawing moves in a special order through some algorithm that the p...
- Sun Feb 22, 2015 4:42 am
- Forum: Endgame Tablebases
- Topic: Is there a way to rank the drawing moves?
- Replies: 10
- Views: 67803
Is there a way to rank the drawing moves?
At present, I assume they are listed randomly. But shouldn't it be possible for there to be an algorithm that computes the probability that a drawing move leads to a win through mistakes by the opponent? Simply take the number of paths that lead to a win and divide by the total number of paths after...
- Wed Apr 04, 2012 1:29 am
- Forum: Endgame Tablebases
- Topic: King's Gambit solved in Tablebase format!
- Replies: 1
- Views: 10228
King's Gambit solved in Tablebase format!
http://www.chessbase.com/newsdetail.asp?newsid=8047 Here Rybka programmer Rajlich claims to have solved the King's Gambit and has found that it is losing by force for White, unless he plays 3.Be2, which leads to a draw. He said he will work on the other openings next. Can't wait to hear his findings...
- Wed Jul 21, 2010 2:38 am
- Forum: Endgame Tablebases
- Topic: Opening advantages from a tablebase point of view?
- Replies: 9
- Views: 10344
Re: Opening advantages from a tablebase point of view?
After studying immense amout of opening theory, I have to conclude that not only is chess drawn from the beginning, but almost all moves in opening theory that are not given a ? by opening theorists result in tablebase draws. Moves that are given ? or even ?! by opening theorists may or may not lead...
- Tue Jun 29, 2010 9:01 pm
- Forum: Endgame Tablebases
- Topic: Opening advantages from a tablebase point of view?
- Replies: 9
- Views: 10344
Re: Opening advantages from a tablebase point of view?
Metrics for theoretically drawn positions would more or less necessarily refer to the probability of either side making a mistake (i.e a move changing the evaluation of the position from draw to loss), or inducing such a mistake from the opponent. That's the closest I can think of for a metric for ...
- Sat Jun 19, 2010 8:36 pm
- Forum: Endgame Tablebases
- Topic: Opening advantages from a tablebase point of view?
- Replies: 9
- Views: 10344
Opening advantages from a tablebase point of view?
How do the advantages for White obtained from opening theory show up from a tablebase point of view? Let's say there is a position where opening theory strongly believes a certain move gives White a slight advantage. Let's suppose that chess is also fully solved. Does the position change from 1/2-1/...
- Tue Jul 18, 2006 4:18 am
- Forum: Endgame Tablebases
- Topic: Why to use EGTB? We need examples.
- Replies: 22
- Views: 16416
- Mon Jul 17, 2006 4:25 pm
- Forum: Endgame Tablebases
- Topic: Why to use EGTB? We need examples.
- Replies: 22
- Views: 16416
15-piece tablebases in 50 years? No way.
Greetings. I've just joined and am happy that this forum exists. Using a simple exponential fit on the data sizes of the 3, 4, 5, 6-piece tablebases, an estimate of the total size of all 15-piece tablebases is 2.4*10^22 Terabytes. We would have to wait many generations for that! This brings me to a ...