On Wed, 2008-10-08 at 22:43 +0200, Erik van der Werf wrote: > > I believe 6.5 would give black a bigger advantage than 7.5 gives > white in "practical play." > > This may be true for your CGOS games. > I did a quick check on CGOS 9x9 and white wins 52.05%
I did not filter based on strength, this is just the whole set of games. Please note that CGOS alternates colors - if you play a particular opponent as white, you will be black next time. Since many games are mismatched, there is reason to believe that white has an even greater than 52% advantage. I may later look at the data only considering players within 100 ELO of each other or so. An earlier pattern indicated that weak players do better with low komi, for instance random players win as white even with 5.5 komi. Maybe this has no relevance here but the pattern seems to be that as you get stronger you do better with black. On the other hand, if komi is too high then I would expect stronger players to win with white. irb(main):002:0> 317665.0 / (317665 + 292698) => 0.520452583134954 irb(main):003:0> - Don
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