Double Dummy Corner

 

Competition Problem 103a

composed by Hugh Darwen
presented for solving in September, 2013

DR4

♠ 65432

 none

 A432

♣ KQ65

♠ A

 108765

 QJ1098

♣ J10

♠ KQJ109

 AKQ

 765

♣ 87

♠ 87

 J9432

 K

♣ A9432

South to make five clubs against any lead by West.

Successful solvers:  Steve Bloom, Ian Budden, Leigh Matheson, Sebastian Nowacki, Radu Mihai, F.Y. Sing, Dick Yuen, Wim van der Zijden

DDC Home Next problem Previous problem
  Next DR4 Previous DR4
Competition problem archive Next Darwen problem Previous Darwen problem

Solution

Unless the A is cashed at trick one the contract can be made by throwing West in on that card.  For example, on a club lead, North wins and leads a low diamond to the K.  There follows a red suit cross-ruff for the next six tricks, including South’s ruff of the A!  The A draws the remaining trumps and West is put in on a spade.  West has a long diamond to cash but must then lead into South’s J9 tenace.

So, West cashes the A and switches to a club.  Again North wins and leads a diamond to South’s K.  The first heart ruff follows but this time North cashes the A, South throwing the club loser, to leave this, with North on lead:

♠ 6543

 none

 43

♣ K65

♠ none

 10876

 QJ10

♣ 10

♠ KQJ10

 AK

 7

♣ 8

♠ none

 J943

 none

♣ A943

Now comes the key play: North leads a spade (not a diamond) and South ruffs it with the A.  West is caught in a backwash squeeze without the count.

A.      “Discarding” the 10 clearly makes life easy for declarer.  The next four tricks are cross-ruffed and then the 9 draws East’s 8 and the J is the eleventh trick.

B.      Discarding a heart allows South to establish two heart tricks by ruffing one and drawing trumps.  A low heart is then conceded to East and South is high with a trump and J9.

C.      Discarding a diamond allows declarer to cross-ruff the red suits for the next four tricks, then throw West in with the last trump for a heart lead into J9.

See the solution to Competition Problem #4 for the recommended tabular format if you prefer not to write in English prose.

DDC Home Next problem Previous problem
  Next DR4 Previous DR4
Competition problem archive Next Darwen problem Previous Darwen problem

© Hugh Darwen, 2013

Date last modified: 11 March, 2017