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Portland Bowl Board 29 Play 6S

#1 User is offline   broze 

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Posted 2012-April-25, 12:27

The Portland Bowl is an annual EBU university event. This year's winners were Southampton A team who triumphed by 2 IMPS over Oxford A in a very closely fought final; congratulations to them. Swings all over the place but the scores remained close to tied throughout the 48 board match. Here is an interesting play problem in 6S:



6S, declarer West, lead T♣. NS silent in the bidding, except on one table where
Spoiler



If you play on trumps:
Spoiler

'In an infinite universe, the one thing sentient life cannot afford to have is a sense of proportion.' - Douglas Adams
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#2 User is offline   JLOGIC 

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Posted 2012-April-25, 12:43

I would try to bring in trumps and if that failed I'd hope the HQ dropped. Ace of spade, spade when the layout is revealed I'd duck. Say they play back a club. I'd win, play the HAK. If south dropped the HQ pull trumps and hook the heart and claim. If north dropped it, cash a club pitching a diamond, ruff a diamond, pull trumps, hope it all lived. I guess north should come back a trump, that messes with my entries to test for Qx of hearts with south.

So basically, I'd take a finesse, then hope for some luck. Very non expert line on a hand like this I know.

edit: sorry I didn't see that south doubled clubs. You say on one table, should I be playing assuming south had doubled clubs or not? It is in spoilers and unclear.

This post has been edited by JLOGIC: 2012-April-25, 12:45

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#3 User is offline   broze 

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Posted 2012-April-25, 12:59

View PostJLOGIC, on 2012-April-25, 12:43, said:

edit: sorry I didn't see that south doubled clubs. You say on one table, should I be playing assuming south had doubled clubs or not? It is in spoilers and unclear.


Apologies. I'm never quite sure on spoiler etiquette, but I thought I'd provide all the information that one of the declarers received. Feel free to say if/how the double changes your line.
'In an infinite universe, the one thing sentient life cannot afford to have is a sense of proportion.' - Douglas Adams
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#4 User is offline   dave_w 

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Posted 2012-May-01, 21:26

I think one should test Hearts before playing on trumps. After ♥AK, no Queen has dropped you'll have to bring in the trumps. If South drops the Queen then cash the ♠K and then ♠A (if the ♠T falls then run the Jack to retain control). If North drops the ♥Q then ♠A, finesse the ♠9 (to retain control in case trumps are 4-1).

If the Heart Queen hasn't dropped then I take the Spade finesse. Cash the Clubs (pitching a Heart) and then exit in Hearts and play for split Diamond honours.

This line seems to work when:
♥Q is doubleton
OR
♠Q is onside and Diamond honours are split (minus some for when Hearts are 5-1 and a Heart honour got ruffed).
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#5 User is offline   gnasher 

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Posted 2012-May-02, 00:51

View Postbroze, on 2012-April-25, 12:59, said:

Apologies. I'm never quite sure on spoiler etiquette, but I thought I'd provide all the information that one of the declarers received. Feel free to say if/how the double changes your line.

To avoid confusion about what people are responding to, I would present the problem as two separate problems, eg:
(1) How do you play on an uncontested auction?
(2) How would you play if South had doubled 5♣?
... 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   gnasher 

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Posted 2012-May-02, 01:05

View Postdave_w, on 2012-May-01, 21:26, said:

I think one should test Hearts before playing on trumps. After ♥AK, no Queen has dropped you'll have to bring in the trumps. If South drops the Queen then cash the ♠K and then ♠A (if the ♠T falls then run the Jack to retain control). If North drops the ♥Q then ♠A, finesse the ♠9 (to retain control in case trumps are 4-1).

If the Heart Queen hasn't dropped then I take the Spade finesse. Cash the Clubs (pitching a Heart) and then exit in Hearts and play for split Diamond honours.

After ♥AK, ♠A, succesful spade finesse, it would be a good idea to just claim your twelve winners.
... 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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#7 User is offline   dave_w 

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Posted 2012-May-02, 05:32

View Postgnasher, on 2012-May-02, 01:05, said:

After ♥AK, ♠A, succesful spade finesse, it would be a good idea to just claim your twelve winners.


I think that's a large improvement on my line :-)
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#8 User is offline   broze 

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Posted 2012-July-09, 11:12

Just realised I never actually posted the full deal for this hand so for the sake of posterity here it is:



Justin's line:

View PostJLOGIC, on 2012-April-25, 12:43, said:

Ace of spade, spade when the layout is revealed I'd duck. Say they play back a club. I'd win, play the HAK. If south dropped the HQ pull trumps and hook the heart and claim. If north dropped it, cash a club pitching a diamond, ruff a diamond, pull trumps, hope it all lived.


...fails because North can ruff the club. Which is why I wondered what the correct line might be if South does indeed double a ♣ keycard response at any point.
'In an infinite universe, the one thing sentient life cannot afford to have is a sense of proportion.' - Douglas Adams
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