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Revoke (EBU)

#1 User is offline   VixTD 

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Posted 2012-July-20, 06:53

- QJ98 J -

.............9 - 1087 5

76 - AQ9 -

South is declaring a spade contract. The West hand is irrelevant.

South leads a diamond to dummy's jack, and East ruffs with the 9. South then faces her hand and claims the rest. The director is called when it comes to light that East has revoked.

How many of the last five tricks does South get?
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#2 User is offline   RMB1 

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Posted 2012-July-20, 07:08

If East or West agrees to the claim, the revoke is established. East won the revoke trick and that trick is transferred. The claim is good and declarer makes the rest, so he makes all the last five tricks.

If East/West do not agree to the claim before the revoke comes to light, the revoke is not established and must be corrected. EBU White Book 70.3 tells us to assess the claim with any doubt going against the revoking side. The defenders will only make 9, giving four of the last five tricks to declarer.
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#3 User is offline   billw55 

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Posted 2012-July-20, 07:09

View PostVixTD, on 2012-July-20, 06:53, said:

How many of the last five tricks does South get?

Four. East could not fail to take one trick by any means.
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#4 User is online   paulg 

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Posted 2012-July-20, 07:10

Did East or West agree to the claim orally or by facing his hand or in any other way?

If so, then the revoke trick is transferred to South, so South makes the final five tricks.

If not, then the revoke is not established and East must play a diamond. East will now make his master trump and South will make four of the final five tricks.

From the wording of the post it sounds as if the defenders did agree to the claim, but this seems to me to be the critical point for the TD to establish at the table.

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#5 User is offline   gnasher 

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Posted 2012-July-20, 07:11

Did EW accept South's claim?
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
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#6 User is offline   blackshoe 

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Posted 2012-July-20, 07:14

View PostVixTD, on 2012-July-20, 06:53, said:

- QJ98 J -

.............9 - 1087 5

76 - AQ9 -

South is declaring a spade contract. The West hand is irrelevant.

South leads a diamond to dummy's jack, and East ruffs with the 9. South then faces her hand and claims the rest. The director is called when it comes to light that East has revoked.

How many of the last five tricks does South get?

Insufficient data. Did either defender agree to the claim "orally or by facing his hand or in any other way"?
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#7 User is offline   billw55 

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Posted 2012-July-20, 07:17

Interesting, EW agreement seems to be the key point. I based my (apparently knee-jerk) answer on a vague understanding that the laws had moved to toward restoring equity rather than penalizing. I suppose it is a good thing that I am not a director.
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#8 User is offline   wank 

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Posted 2012-July-20, 07:25

what's this about defenders facing their hands (yes i know that's from the laws)? play has ceased. they can flash their cards however they like without it meaning anything in normal cirucumstances. indeed if an opponent claims it's helpful to see partner's cards to check there's nothing you can do.

i suspect that's actually supposed to be referring to 'making a claim' not 'agrees to a claim' (64A3).

typo: 63A3
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#9 User is offline   blackshoe 

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Posted 2012-July-20, 07:31

Read Law 63A3 carefully. BTW, there is no law 64A3.
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#10 User is offline   wank 

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Posted 2012-July-20, 07:45

I have. The point I was trying to make is that with several occurrences of 'or' in the sentence it's not evident that 'by facing his hand' pertains to both 'makes a claim' and 'agrees to a claim'.

Nowhere else in the laws (law 69A in particular) is there any suggestion that a defender exposing his hand in response to a claim signifies acceptance.
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#11 User is offline   c_corgi 

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Posted 2012-July-20, 08:04

View Postwank, on 2012-July-20, 07:45, said:

I have. The point I was trying to make is that with several occurrences of 'or' in the sentence it's not evident that 'by facing his hand' pertains to both 'makes a claim' and 'agrees to a claim'.

Nowhere else in the laws (law 69A in particular) is there any suggestion that a defender exposing his hand in response to a claim signifies acceptance.


Also, even if L63A3 is meant to imply that a defender can agree to a claim by facing his hand, I am not sure that it implies that facing his hand constitutes agreement. Another possible way to agree to the claim is orally, but that does not imply that any oral communication would constitute acceptance of the claim. Surely intent to accept the claim is required, in a similar way to a faced card being a lead if intended as such but not otherwise.
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#12 User is offline   blackshoe 

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Posted 2012-July-20, 08:10

The language of Law 63A3 is clear: if either defender agrees orally to a claim, or agrees by facing his hand, or agrees in any other way, then the revoke is established. If none of those happens, presumably because both defenders object to the claim, then the revoke is not established. If the revoke is not established, then it must be corrected, even if play has ceased (Law 62A). The director must then adjudicate the claim, given that the revoker would have had a major penalty card during the play of the remaining tricks. That is what makes this ruling interesting, btw. B-)
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#13 User is offline   RMB1 

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Posted 2012-July-20, 08:40

View Postblackshoe, on 2012-July-20, 08:10, said:

... That is what makes this ruling interesting, btw. B-)


Why interesting? (I really feel I am missing something.)

J wins. A is played from dummy and East must play 9, winning the trick. South's remaining three cards are good, whatever he plays on the . Four tricks?
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#14 User is offline   c_corgi 

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Posted 2012-July-20, 08:45

View Postblackshoe, on 2012-July-20, 08:10, said:

The language of Law 63A3 is clear: if either defender agrees orally to a claim, or agrees by facing his hand, or...


We probably cross-posted, but to clarify: couldn't a defender face his hand for other reasons, such as to contest the claim?
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#15 User is offline   blackshoe 

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Posted 2012-July-20, 09:04

View Postc_corgi, on 2012-July-20, 08:45, said:

We probably cross-posted, but to clarify: couldn't a defender face his hand for other reasons, such as to contest the claim?

If he says he's contesting the claim, yes. If he just faces his hand without saying anything, he's agreeing to it.
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#16 User is offline   blackshoe 

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Posted 2012-July-20, 09:13

View PostRMB1, on 2012-July-20, 08:40, said:

Why interesting? (I really feel I am missing something.)

J wins. A is played from dummy and East must play 9, winning the trick. South's remaining three cards are good, whatever he plays on the . Four tricks?

If the revoke was established, declarer wins the last four tricks, and then one trick is transferred to him because of the established revoke. If the revoke was not established, the 9 becomes a major penalty card, declarer wins trick 9 in dummy and leads a heart. East ruffs, and declarer must discard a winner from his hand. EW get one of the last five tricks, declarer gets four. So what's interesting is that if either defender contests the claim, the revoke penalty disappears, Law 64C does not apply, and the defenders get one more trick than they would have if the revoke was established.
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#17 User is offline   gnasher 

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Posted 2012-July-20, 09:18

View Postblackshoe, on 2012-July-20, 09:04, said:

If he says he's contesting the claim, yes. If he just faces his hand without saying anything, he's agreeing to it.

How did you reach that conclusion? It's certainly not supported by the Laws covering claims and concessions.

The most common reason for a defender to face his hand after a claim is to help his partner to decide whether to accept the claim or not. I can't recall anyone ever accepting a claim by showing their hand - usually one does it by folding one's cards up and putting them back in the board.
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
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#18 User is offline   gnasher 

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Posted 2012-July-20, 09:21

View Postblackshoe, on 2012-July-20, 09:13, said:

So what's interesting is that if either defender contests the claim, the revoke penalty disappears

I don't think that's quite right. If one defender agrees to the claim but the other contests it, the revoke is established.
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
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#19 User is offline   RMB1 

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Posted 2012-July-20, 09:43

View Postblackshoe, on 2012-July-20, 09:13, said:

... So what's interesting is that if either defender contests the claim, the revoke penalty disappears, Law 64C does not apply, and the defenders get one more trick than they would have if the revoke was established.


OK. I thought you meant the fact that 9 would be a major penalty card was important/interesting.
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#20 User is offline   bluejak 

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Posted 2012-July-20, 13:43

View Postbillw55, on 2012-July-20, 07:17, said:

Interesting, EW agreement seems to be the key point. I based my (apparently knee-jerk) answer on a vague understanding that the laws had moved to toward restoring equity rather than penalizing. I suppose it is a good thing that I am not a director.

It is an interesting comment you made here, more often seen on rec.games.bridge than here. It is certainly true. But while the lawmakers have said so, that does not mean that anyone should rule on that basis: they rule on what the Law says. It was a comment on how the Laws had changed: the approach of following the Laws remains unchanged.

The most commonly applied and basic penalty still in the Law book is the transfer of tricks after a revoke.
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