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Denmark vs the World XG PRs

Posted By: Matt Cohn-Geier
Date: Friday, 9 April 2010, at 8:00 a.m.

In Response To: Denmark vs the World XG PRs (Marc Olsen)

Interesting, the first time analyzing match #4 I came up with Mochy 5.2 Marc 8.9, but the second time I analyzed it I came up with Mochy 5.4 Marc 8.7. The third time it comes up with Mochy 5.4 Marc 8.8.

My guess is this has something to do with rounding error in XG, maybe with XGR+.

In this position:

The equities first came out as .443 and .470 for a difference of -.027. When I analyzed it a second time it came out as .445 and .469 for a difference of -.024. Then I hit the XGR+ button a third and fourth time and got .444/.469 (diff of -.025), and .444/.470 (diff of -.026). Note 72.1 wins vs. 72.3 (or 72.2).

So, rather odd that I don't come up with the same equity/win% in all 4 cases.

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