Monday, October 8, 2018

5NT Pick a Slam

5NT Pick a Slam can be used when you want to play in a small slam, but need partner to help choose the best strain. Any 5NT bid asks partner to P.A.S.S. (ha ha) - "Pick A Small Slam".
Partner is expected to use his best judgement based on the bidding up to that point. He can bid any suit naturally, or simply bid 6NT if he is certain about no-trumps.

Examples

The following examples are from Marty Bergen's book "Slam Bidding Made Easier".
OpenerResponder
AT9SKQ74
HK4AQJ9
DKQJ9852T
C9A642

Opener
1
3
6 (2)

Responder
1
5NT (1)
Pass 
  1. 5NT Pick a Slam
  2. Affirming a self-sufficient trump suit

OpenerResponder
A4SK953
HKQ3A85
DK642A5
CQJT8AK72

Opener
1NT
2 (2)
6 (4)

Responder
2 (1)
5NT (3)
Pass
  1. Stayman
  2. No 4-card major
  3. 5NT Pick a Slam
  4. Suggesting the cheapest 4-card suit
Compare the above auction to normal methods. Bergen suggests that responder might blast 6NT over 2, which would fail by a trick.

OpenerResponder
AQJ9SKT4
HAKJQ85
D7AJ8653
CKJ742A

Opener
1
2
3NT
6 (2)

Responder
1
3
5NT (1)
Pass
  1. 5NT Pick a Slam
  2. Showing a very good 4-card suit
The 6S bid that Bergen suggests is cleverly nuanced. First, opener's failure to bid 6 indicates a lack of diamond tolerance. Second, opener's previous 3NT bid implied 4-5 shape in the black suits. So the 6S bid cannot be some kind of 5-6 monster. It suggests an imbalanced hand that's willing to play in a Moysian fit (given that responder failed to raise spades earlier).

OpenerResponder
J96432SA
H75AK84
DAKQJT96
CKT9AQ4

Opener
1
2
3NT
6 (2)

Responder
2
3
5NT (1)
Pass
  1. 5NT Pick a Slam
  2. Showing diamond tolerance
Opener's 6 shows diamond tolerance given his prior inability to raise the suit.
All in all Bergen states that 5NT Pick a Slam is his favorite slam convention "because both players are involved in the decision-making process. The partnership will arrive at the contract only after mutual agreement."

The 5NT Bidder's Rebids

After hearing partner's response, the 5NT bidder can simply pass, bid another suit naturally, or bid 6NT.

Other Considerations

  • When using 5NT Pick a Slam, you must be confident that your side can make a small slam. However, you must also be certain that you don't belong in a grand slam. (Otherwise, you should use bidding methods for exploring a grand.)
  • The only exception to the 5NT Pick a Slam convention is a 5NT Blackwood rebid which asks for kings.
  • 5NT Pick a Slam conflicts with the Grand Slam Force convention, which asks partner to bid a grand slam with 2 of the top 3 honors in the agreed trump suit. The loss of GSF can be negated by employing Roman Key Card Blackwood for inquiring about top honors.
    Larry Cohen (of the Law of Total Tricks) has gone so far as to say that 5NT Pick a Slam has made GSF "obsolete".

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