Fulbourn Bridge Club
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Release 2.19r
The rule of twenty

The Rule of Twenty

In the early days of bridge a full thirteen point hand was required in order to open the bidding. Now standards have dropped to twelve. In addition there is a very useful rule - taking distribution into account - that sometimes allows you to open the bidding with even less. Add your total points to the number of cards in your two longest suits; if the total is twenty or more then it is winning bridge to open the bidding. Using The Rule of Twenty, an eleven point hand with a five-four shape or with a six card suit will be opened; as will a ten point hand with a five-five or six-four shape.

This week's South must have been a trifle nervous - having opened the bidding with just nine points he heard his partner had put him into Slam. How did he fare?

South Deals
None Vul
♠ Q 4
♥ K Q 10 9
♦ A J 8 6
♣ J 6 4
♠ A 8
♥ 7
♦ Q 9 4 3
♣ A K 10 8 7 3
N
W   E
S
♠ 10 9 2
♥ 4 3 2
♦ K 10 7
♣ Q 9 5 2
 
♠ K J 7 6 5 3
♥ A J 8 6 5
♦ 5 2
♣ —
West North East South
      1 ♠
2 ♣ 2 ♦ 3 ♣ 3 ♥
5 ♣ 6 ♥ Pass Pass
Pass

 

East-West's vigorous ♣ bidding convinced North - correctly - that his partner was almost certainly void of the suit. So his 6 ♥ bid over 5 ♣ was not quite the wild leap it first appears.

West led ♣ A and declarer trumped. He crossed to ♥ Q, cashed ♥ K and led to ♥ A, drawing the four opposing trumps. He then led ♠ 3 to ♠ Q and ♠ 4 to ♠ J and West's ♠ A. West switched to ♦ 3 - too late. Declarer won dummy's ♦ A, trumped ♣ 6, cashed ♠ K and his three remaining ♠s and took the last trick with dummy's remaining trump.

West can hardly be blamed for his ♣ A lead but the opening lead of a ♦ would have established a ♦ trick for the defence, which they would have been able to cash when in with ♠ A.

THE RULE OF TWENTY: Open the bidding when your total points added to the number of cards in your two longest suits equal twenty or more.