Author: Harald Faber
Date: 06:12:20 01/28/99
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On January 28, 1999 at 08:35:56, Thoralf Karlsson wrote: > >Hmm, ask Bob about the sense in playing program A against the predecessor. I >>don't see any sense in it too. > >Why not? I guess that you mean that the result for a new program version played >against it's predecessor somehow would differ from the results against all other >programs. By the way, do you mean that the new version would get a relatively >better or worse result than against other programs? That is exactly what we all want to know. :-) One SHOULD expect a better result, but I think it is problematic. I'd expect maybe a better result against A but a bit worse against B... :-) >I doubt that there is a difference. It would be possible to check this by >temporary deleting results against older versions and see if/how the rating >changes. If you'd give me the data and tell me how to calculate I'd do it. >We try to play all programs against roughly the same opposition. Stopping to >play against earlier versions of the same program would change this principle. >Anyhow, since we until now have tested in this way, it would be unwise to >suddenly change it. OK, if this is a principle...anyway I'd like to see results left out from programs playing its predecessor. If it would matter and if so in how far. Like doubles. They in fact CAN hurt a rating. E.g. take program A play 10 games vs. B, winning 10-0, losing 0-10 vs C, so overall 10-10. But what happens if one of the 2 matches is double available, you get 20-10 or 10-20 what is different than 10-10 without doubles. OK, just a remark, I don't want to start another doubles-discussion. >>Why not play H7 against Rebel9 on P90 e.g.? > >It has already been played by Tony Hedlund (14½ - 5½) I didn't notice nor see that, sorry if it is available somewhere. >>>PS A new rating list will appear in a few days. New entries are Hiarcs 7 and >>>Fritz 5.32. >> >>Any hints? :-) >>I guess H7 hitting the top and F5.32 behind, 4 pts >F5.16. :-) > >Do you have access to my PC?? :-) Spiritual. :-) Seriously, it was just a guess based on what I've seen by now.
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