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Andrew’s favourite conventions (three)

Our second in the series of Top Ten Conventions, featured last week, was the Weak Two Opener. Its close relative is the Weak Jump Overcall. Modern experts are almost universal in their agreement that a single jump overcall (eg 1 ♣-2 ♠ or 1 -3 ) should be disruptive, showing the same hand-type as a Weak two opener, ie 5-10 points and a six-card suit. When vulnerable or at the three-level use more caution - a seven card suit is advisable. Similar to all preemptive bids, the Weak Jump Overcaller does not bid again, his partner becoming Captain.

South Deals
N-S Vul
A 6 4
6 4
8 2
K J 9 7 6 4
J 9
K Q 10 7 5 2
J 9 5 4
10
N
W   E
S
K Q 10 8 7 3
J 9 3
Q 10
8 3
 
5 2
A 8
A K 7 6 3
A Q 5 2
West North East South
      1 
2  Pass 3  Pass
Pass Pass

West’s Weak Jump Overcall, combined with East’s preemptive raise to 3 , stole the bidding from North-South. That the 3  contract failed by one trick (losing all four aces and  K) was almost immaterial when you consider what North-South could have made. Imagine a 6 ♣ contract (by South).

West leads  K and declarer wins  A. He immediately begins establishing s, cashing  AK, trumping  3 with ♣ J, crossing to ♣ Q, and trumping  6 with ♣ K. He crosses to ♣ A, drawing East’s last trump, then cashes  7 discarding  6. He trumps  8, cashes ♠ A, concedes a ♠, and tables his remaining two cards, both trumps. Sad for North-South that the play to 6 ♣ is hypothetical – credit the Weak Jump Overcall!

ANDREW’S FAVOURITE CONVENTIONS: (3) The Weak Jump Overcall

 

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