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Adventures of a bridge professional

Adventures of a bridge professional.
Columns by Dutch National Team player Sjoert Brink. Check out the section Columns

Defence puzzles
In these puzzles, presented by dutch junior international Frank Visser, you are one of the defenders in a game of bridge. You are asked to find the best defence. Enjoy!
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A waste? *

S/EWK J 10 3
 
 A 10 3
9 3
Q 10 9 7
8 2windroos  
Q J 5  
K 10 8 7 2  
A 3 2  

WestNorthEastSouth
1NT
pass
2pass2
pass3NTpasspass
pass   

IMP-scoring (team match), so West will do his utmost to defeat the contract. Overtricks (or extra undertricks) are relatively unimportant.

West leads the 2. East wins with the A and continues with the J, South following suit with the 4 and the 5.
Since dummy's 9 now disappears, West's 1087 become equals. South still has the Q of course.
If West now plays a small diamond, he will succeed if East has another diamond (very well possible, since from originally AJx he will return the middle card, the J). EW will thus score five diamond tricks and the A: down two.
But what if East started with the bare AJ?
How should West defend?

Solution
 
Communication *
N/EWA K 5 
 7 3 2
A 5 4
K 9 8 3
  windroos7 6 3
  A K 10 6 5
  J 3 2
  Q 5

WestNorthEastSouth
113NT
passpasspass 

West leads the 9. How should East defend?
This concerns IMP play (team match). So East will do his utmost to defeat the contract. Overtricks and extra down tricks are relatively unimportant.

Solution
 
Defending is cooperating (2) **
W/AllA K Q 7 6
 
 K J 10
Q 6 3
A K
5
windroos  
A 7 3
  
A K J 8 4
  
Q 10 8 2
  

WestNorthEastSouth
1doublepass1
pass4passpass
pass   

West leads the A, East contributing the 7 and South the 5. EW use classical signals, so high-low is a 'come on'-signal.
How should West defend?

Solution
 
Don't give declarer the chance he is looking for ***
N/—10 8 7 3 
 A K 7
Q 10 8 5 4
J
K Q J 4windroos  
10 5  
J 3  
Q 10 8 6 4  

WestNorthEastSouth
passpass2NT1
pass32pass3NT3
pass4NT4pass6NT5
passpass
pass  

1 19-21
2 Puppet Stayman: enquires after South's holding in the major suits
3 Neither a four-card nor a five-card major suit
4 Quantitative raise (invitational to 6NT), therefore not forcing
5 Maximum

Optimistic bidding by North! Even if South has the maximum 21 points, the sum in NS still only adds up to 31. On the other hand: North's five-card suit is often valuable but 6 might be better...

Of course West leads the K, which wins.
It is time for West to show what stuff he is made of. Which card does he play at trick two?

Solution
 
Save partner from embarrassment ***
W/AllA 6 5 
 K J 7 5
K J 8 3
A 2
K 9windroos  
A Q  
A 10 9  
9 8 6 5 4 3  

WestNorthEastSouth
1double11
passpassdouble13
pass
4passpass
pass   

1 Take-out

This was the bidding at one of many tables at the 2004 European Championships for teams in Malmö, Sweden. A strange auction, but not an impossible one: East is unwilling to sell out in 1 and South suddenly comes up with a jump: it's clear he has six spades but had too few points to jump in spades at the first round of the bidding.
Anyway, at most tables South declares 4, although after different auctions.

Almost any West leads a club. Our West elects the 4 (third or fifth best). Declarer wins with dummy's A (East the 7, South the 10) and returns, somewhat surprisingly, the 2. East wins with the Q, South the J.
Which club should West play to this track to save East from embarrassment (after all, East could have passed 1, so if NS make 4, East will have egg in his face)?

Solution
 
The only chance ***
S/—K 7 
 K 5 2
K 10
Q J 10 9 3 2
  windroos6 5 4 2
  A Q 4
  Q 5 4
  A K 6

WestNorthEastSouth

1
pass2pass2NT
pass3SApass
pass
pass
   

West leads the 10 (a natural lead, so West denies possession of the J), declarer ducks in dummy.
If East takes his time, he will come to the conclusion that there is only one chance to defeat this contract. How should he plan the defence?

Solution