[blml] Revoke then adjust to different contract

[Sinot Martin]

> Richard Hills:
> 
> >I think that Martin Sinot is generally on the right track.
> >
> >However, I disagree with what I think Martin is saying in his final
> >sentence (although it is possible that I have misinterpreted Martin's
> >intent).  He seems to be saying that East-West keep their matchpoint
> >bottom if their error was significant enough to turn a good
matchpoint
> >score into a bottom (letting the UI-assisted contract of 4H make
> >instead of defeating it), but East-West do not keep their matchpoint
> >bottom if their less significant error turned a poor matchpoint score
> >into a bottom (conceding an overtrick when the UI-assisted 4H was
cold
> >for ten tricks).

No, that was not what I meant. I said that NS simply get the score
without their own infraction, so they cannot keep the good score they
got from a blunder of the opponents; EW, however, get a correction only
insofar the damage was not caused by their own subsequent fault (here,
the revoke).

So, assuming nine tricks are available in hearts, for the first few
cases you can let EW keep their score, because without the revoke (their
own mistake) they would have got a better score than the TD can give
them back, which means that all EW damage is their own fault: not
consequent, but subsequent damage. In the last case, there is still
damage if you disregard the revoke (+140 is better than +100), so now
they are entitled to some correction: you give the score belonging to
+140, but subtract the IMP/MP difference between +100 and -620. EW are
now better off than letting their score stand, but they do not get
everything back.

But for all cases, the score for NS is the score without their
infraction, and EW's subsequent error is disregarded for them.
-- 
Martin Sinot