[blml] Thai braking

[John Probst]

> form anyway.
>
> For alternatives, you might want to look at the "Bethe" VP scales, which
> have the merit of a clear mathematical justification.  I believe the EBU
> scales are similar but not identical to Bethe.

The EBU scales are nothing like the Bethe ones. They divide all outcomes 
into equal probability, so a score of 19-1 occurs as often as 11-9. the 
Bethe scales do exactly the opposite, bunching scores round average even 
more so than the raw imps score. Utterly pointless IMO.

The Oz ones are a waste of space too, might just as well use capped imps.

That doesn't mean I think the EBU ones are best, although by spreading the 
field as much as possible they do home in on a winner a lot better than any 
other model.

 John

>
> Bethe scales for 3-10 boards are in Appendix V of
> http://usbf.org/docs/COC/usbc2003final.pdf
> I'm fairly sure the underlying derivation was posted here on BLML, no
> doubt before 2003.
>
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