[blml] Revoke then adjust to different contract

[Sinot Martin]

> -----Original Message-----
> From: blml-bounces at amsterdamned.org
[mailto:blml-bounces at amsterdamned.org]
> On Behalf Of David Grabiner
> Sent: Thursday, September 07, 2006 5:52
> To: Bridge Laws Discussion List
> Subject: [blml] Revoke then adjust to different contract
> 
> N-S play in 4H, a contract which they may have reached through use of
UI.
> Ten tricks are cold, but West revokes.  After the adjustment, N-S take
11
> tricks, which is impossible without the revoke.  (E-W had taken two
aces
> at
> the first two tricks, and West revoked later by overruffing with the
high
> trump.) -620 is already a bad score for E-W, so they are still
entitled to
> an adjustment.
> 
> How do you treat the revoke when awarding an adjusted score, if you
adjust
> to a different contract?

You must treat the revoke differently. It is a separate infraction which
has nothing to do with using the UI. So:

 
> For example, if you adjust to 3H, and the play would go the same, do
you
> award +200/-200?

You adjust to +170/-170. However, part of the bad result of EW comes
from the revoke, so from the EW-score (in IMP/MP) you subtract the
IMP/MP difference between 4H= and 4H+1. Thus, you compensate EW for NS's
infraction, but not for their own. Note that you should NOT subtract the
point difference (30 - the difference between 620 and 650), but the
difference after calculating the IMP/MPs. You do this only for EW, NS
just get +170 without any "awards" for the revoke by EW.

> If you adjust to 5C, and the same ten tricks are available, do you
award
> 11
> tricks for +600/-600, or 10 tricks for -100/+100, or compromise by
giving
> the matchpoint score for -100/+100, minus the difference between -620
> and -650 for E-W and plus the same difference for N-S?

Same thing. You give -100/+100 and again subtract from EW the IMP/MP
difference between 4H= and 4H+1.

> If you adjust to 3S by E-W, which makes three for -140/+140, how do
you
> account for the revoke?

Again, subtract from EW the IMP/MP difference between 4H= and 4H+1.

You do this in all cases where part of the bad result comes from a
separate infraction, but there is still damage without that secondary
infraction. If there were only nine tricks in 4H, but the revoke let NS
make it, then you still adjust the NS score, but let EW keep their
score, because all they had to do was not revoke for a good score.

-- 
Martin Sinot