Author: Robert Hyatt
Date: 07:12:45 10/15/98
Go up one level in this thread
On October 15, 1998 at 08:52:31, ed wrote: >I gave Rebel 15 min avg CPU time/move to analyze a complete game. But after 12 >1/2 moves, Rebel seems to be stuck. Even as I am writing this (on a diff PC btw) >Rebel has been stuck in this particular postion for 14h 30m- 58 times longer >than it is supposed to be. > >From previous experience with Rebel9, I know that Rebel can take as much as 8 >times longer than the preset avg CPU time, but 58+ times is somewhat ridiculous. >I am now thinking that Rebel probably won't even stop computing now. It likes >this position too much! :) (Hmmm..hash seems to be stuck at 91% for the longest >time.) > >Anothing thing that I dont' understand is why does Rebel have to calculate twice >for each particular move; one for the best move, one for the actual move played. >Can it not assign a score for the actual move played while finding the best >move? Is there an option to not score the actual move played, thereby speeding >things up? After all, I dont' care how good/bad (probably bad) my move is. Very >often, I just want to know what the best moves are. (Incidently, I wish that >Rebel would list the top 3-5 moves in writing the analysis, and not just one. >After all, the whole idea of analysis is to explore alternate moves, the what >ifs...) > No it can't. Alpha/beta doesn't produce a score for *every* move searched. It produces a score for the first (hopefully best) move and then only proves that the score for every other move is lower, without determining how much lower. It takes a second search to get the real score/PV for a second-best move... >I also don't particularly understand why the combination isn't a workable option >when analyzing a complete game. I would surely want Rebel to find tactical moves >as fast as it can be it in a single position or in a complete game. > >PGN output (with move notes) for Rebel9 doesn't work with TASCBASE which can >read PGN. Does anyone know if PGN from Rebel10 would work? > >Is Anti-GM also good for long analysis? 15 min or more/position? > >Overall, Rebel10 is an excellent program (best looking also), and I hope that >Rebel for Windows would be even a further improvement. ( I heard that Rebel >Windows that is coming out in 1 year's time would also be Rebel10? Shouldn't it >not be Rebel11 by then?)
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