Double Dummy Corner

 

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Curio 6

composed by Stefan Ralescu (2016)

♠ 876532

 Q2

 none

♣ AKQ108

♠ none

 AKJ109876543

 none

♣ 654




♠ AKQJ4

 6

 98743

♣ 32

♠ 109

 none

 AKQJ10652

♣ J97

To defeat South's contract of seven clubs West must lead a top heart and then refuse to ruff no less than six times as declarer plays out diamond winners.  Is six such refusals the maximum achievable?

Here is Leigh Matheson's answer, sent to me soon after this section first appeared in December, 2016:

♠ 6543

 6543

 65432

♣ none

♠ KQJ10

 none

 none

♣ AKQJ109876




♠ 2

 AKQJ10987

 none

♣ 5432

♠ A987

 2

 AKQJ10987

♣ none

To defeat South's contract of four spades, West must lead a spade and then refuse to ruff no less than nine times as South plays out diamonds and then advances the 2.  Stefan Ralescu gracefully concedes defeat but observes that in his construction the diamond winners are played while both defenders hold at least one trump, so it can still be regarded as a possible challenge.  Stefan Ralescu shows that this is by no means the only solution for nine consecutive ruff refusals:

♠ 432

 32

 65432

♣ AKQ

♠ J1098

 none

 none

♣ J109876543




♠ 765

 107654

 10987

♣ 2

♠ AKQ

 AKQJ98

 AKQJ

♣ none

South is in six spades.  West must lead a trump and then discard all nine clubs as South wins two more spades and plays out the red suit winners followed by the losing 9.

If you think you can beat or interestingly equal either version of this record, click here to submit your construction.

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  Hugh Darwen, 2016

Date last modified: 11 March, 2017