[BLML] interesting problem

Herman De Wael hermandw at skynet.be
Thu Nov 21 11:14:49 CET 2013


Peter,
I never doubted you would get this correct.
You spared a lot of people some wrong guesses though.
One interesting twist: what if dummy has no trumps?
Herman.

Peter Eidt schreef:
> Von: Herman De Wael <hermandw at skynet.be>
>> Someone told me the following case yesterday:
>>
>> Declarer plays a diamond.
>> Before LHO can play to the trick, declarer says "ruff".
>> LHO plays a low diamond.
>> Dummy says "you have to follow suit", which is true.
>> LHO has a higher diamond than all the ones in dummy.
>>
>> Can LHO change his played card?
>>
>> Herman.
>
> Peter:
> Yes, LHO may change his played card.
>
> Law 57 C2 tells us that the diamond ruff is a played card.
> This played card constitutes a (not-yet-established) revoke, which
> is not brought to the attention of anybody yet.
> LHO plays after both hands of declarer have played to the trick.
> Now the revoke is noticed and declarer has to change his play from dummy.
> Finally Law 47 D kicks in telling that "After an opponent’s change of play
> a played card may be withdrawn and returned to the hand without further
> rectification and another card may be substituted." LHO's first diamond
> being UI for declarer (only).
>
>
>
>
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