CCRL Discussion Board

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...

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...

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...

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...

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...

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...

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 ...

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/...

"Are you proposing to also have distributed storage for EGTBs? It may be possible, but as a new concept it will need some serious planning and discussion." Yes. That is exactly what I mean! It is the only way to get results in the timeframe that we want. I buy the latest computer in the ma...

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 ...