COMPETITIVE PART-SCORE BIDDING:
THE FIGHT FOR THE PARTIAL
NOTE WELL: In both rubber and duplicate pairs bridge, more than 50% of all deals are properly played at a part-score contract.
I. From the Opener’s Seat
The most important difference between rubber and duplicate (pairs) bridge lies in the life-or-death struggle for the part-score. In duplicate, one must be much more aggressive because one is confronted with many more crucial decisions where experience has shown that aggressive action is required because each deal is of equal importance. In duplicate pairs success is measured by the frequency of gain, not the amount of gain.
Another reason for bidding aggressively arises from modern innovations in bidding, particularly with the popularity of the negative double (responder’s double) after our side opens the bidding and they overcall in the direct seat. When playing the “negative double” convention, where a direct double by responder of their overcall is for TAKEOUT (ostensibly support for the two un-bid suits) when they overcall and responder holds a penalty (trump stack) double, responder must PASS and await for opener to “protect” with a reopening double (provided opener does not have a trump stack, in which case responder’s pass is NOT a “penalty pass,” but rather an abject confession of weakness).
DIGRESSION: WHAT DOES RESPONDER NEED TO HOLD TO MAKE A “PENALTY PASS?”
1. A trump stack – trump length and trump strength. The table below shows how long and strong your trump suit needs to be to effectively make a penalty pass (or to make a penalty double, if your partnership does not use the “negative double” convention:
When they overcall on this level
|
Minimum trump length
|
Minimum trump strength
|
One level – seven tricks
|
FIVE
|
THREE TRICKS*
|
Two level – eight tricks
|
FOUR
|
TWO TRICKS*
|
Three level – nine tricks
|
THREE
|
ONE TRICKS*
|
*Count an extra trump trick when holding five trump, even five small.
** Be aware of whether you are behind or in front of the overcall. Q-T-x-x behind the overcall is probably worth two trump tricks; Q-T-x-x in front of the overcall might not even get you one trump trick.
Another way to look at this table is that their level (number of tricks) plus your minimum trump length must always add to 12 (or more), and their level plus your minimum number of trump tricks must always add to 10 (or more) in order to have a viable penalty double. Ron Klinger calls this relationship "The Rule of 10 and 12."
2. Enough High Card Points to assure that the partnership holds at least “half the deck.” Thus, when your partnership agreement is to open “(almost) all” 12 HCP hands, as responder, you need at least 8 HCP when you contemplate making a “penalty pass” (OR, for those not playing negative doubles, a “penalty double.”)
For the remainder of this discussion, assume that your partnership employs “negative doubles.”
The bidding goes: West North East South
1S 2H P P
?
What should West do in the re-opening seat with the following hands when your partnership uses negative doubles?
S: K Q T 3 2 K Q T 3 2 K Q T 3 2 K Q T 3 2 K Q T 4 3 2 K Q J 9 3 2
H: 8 5 8 5 A J T 2 2 2 3 2
D: K 6 K 6 4 K 6 A 9 4 3 2 4 3 2 K 2
C: A 9 4 2 A 9 2 4 2 K 6 A K 2 A K 2
X# XX## P### 3D#### 2S##### 3S######
S: K Q T 3 2 K Q T 3 2 K Q T 3 2 K Q J 3 2 K Q T 3 2 A K Q J 4 3 2
H: 8 A Q 2 A Q 2 2 4 3 2 K 4
D: 6 5 K Q 4 Q J 9 A 2 4 3 A 2
C: A K 9 4 2 Q 9 4 2 A K J 3 2 A K 2 3 2
# With some trepidation, because of the doubleton diamond – if partner should inconveniently respond two diamonds, you PASS, and they may very well have a “gotcha!” The deciding factor is you are (somewhat) “short” in their suit at most, two).
## Much more comfortable double here, with three cards in each unbid suit, short in their suit.
### PASS - partner cannot have a penalty pass, and does not have enough for a negative double, and you are quite content to defend two hearts with your heart length and strength.
#### Very scary, but with a singleton heart and a highly offensive hand, bid where you live (the voluntary call on the three-level here promises at least fivecards in the second suit.
##### Partner may have a penalty pass, but your two-suiter suggests declaring will be better
###### The jump rebid to 3S shows a hand that would have made a jump rebid over a minimum response
^ With the singleton heart, ‘tis better to show your second suit, even with minimum high-card values.
^^ 2NT on this auction shows the same as a jump rebid to 2NT opposite a minimum response, a balanced 18-19 HCP with some stoppers in their suit.
^^^ Too many hearts and too much heart strength. Partner’s pass suggests a (very) weak hand.
^^^^ The big double. If partner bids three diamonds, you are strong enough, distributionally and points-wise to call four clubs (or even cue-bid three hearts, telling parter to rebid 3NT with a heart stopper).
^^^^^ Too many hearts, not enough points.
^^^^^^ Whenever 3NT is a viable action (in a competitive auction), then BID IT (Hamman's Rule)!