Author: Ed Schröder
Date: 00:29:15 08/07/98
Go up one level in this thread
>>I can not recommend "sel=3" being stronger than the default setting. But >>"sel=3" isn't a bad choice and "sel=4" / "sel=5" are also good options, maybe >>3/4/5 come close to Rebel's standard setting. >Hm. >>Solution times (PII-266) of R10 for the 3 positions... >>Rxd7 0:08 >>Rxc6 0:02 >>Rxa7 0:08 >>Still not perfect but definitely better than R9. >>- Ed - >Ed, could you explain why Rebel9 plays all the moves Rebel10 played in the >Anand game (Rebel black, tournament) except for only one move? This is amazing >and certainly no reason to get Rebel10 when the moves are 99% the same. I know >this question is difficult to answer, you need sales to survive. Don't see it >as an attack but as a reasonable question. I don't feel offended as you can ask me whatever question you want but I hope you don't mind I will give a strong answer before it becomes a hot item here as you are the second person who is asking me this. Your conclusion is entirely wrong at least in my point of view. I did not check game-7 Anand-Rebel with R9. I checked this game only how effective anti-GM did its work with R10. So I can not judge if your 99% is right or wrong. If true this must be an exceptional case. Have you checked the other 7 games? Next, recently I have posted the differences between R9 and R10. Did you miss this? The statistic showed a similar result when I compared R6 with R7, R7 with R8 and R8 with R9. 10-15% different moves per version. Now you can argue about this percentage. Too low? Too high? Personally I think this 10-15% is a fine number. If you for example get a number of 30% different moves you may strongly wonder how good(?!) your previous version was :-) I like to keep the good moves Rebel played and to do something about the bad moves. Feel free to disagree with my opinion on this 30%. Surely I can produce a R10 which plays 30-40% different moves and still plays good chess but I assume people want the best Rebel available so they get the best Rebel as I (as the author) can produce and judge this. Last item, I am a little bit surprised by the question(s). If you have a look at the Rebel10 Diary on my home page you will notice that on the Rebel10 chess engine more work is done than on R7,R8 and R9 all together as several new and useful functions are added to the engine. No need to list them here just have a look yourself. - Ed -
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