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Reverse engineering


Furlan

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A real one that happened yesterday: try to figure out responder's hand given the auction and corresponding explanations. Assume serious bidding (if it's possible) and no system misunderstandings.

Scoring is IMPs, all white.

 

1NT1 - 22

23 - 34

35 - Pass

 

1 : 15-17

2 : Stayman

3 : no major

4 : shape ask (opener can show: 5-card minor; 4333; 4333; 4-4 minors). A similar asking bid would also be available over 2/.

5 : one 5-card minor

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I can't understand why don't we play 2, We don't ahve any aditional info this round that we didn't have previous round, still 2-3 on each major and 2-5 in each minor. Only new info is no 4 card minor but this is not relevant to any shape I can think about.
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I can't understand why don't we play 2, We don't ahve any aditional info this round that we didn't have previous round, still 2-3 on each major and 2-5 in each minor. Only new info is no 4 card minor but this is not relevant to any shape I can think about.

Partner has a 4450 with enough values that he wants to play game opposite 4 card support but not otherwise, but is guessing the 1N opener has 5 .

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A real one that happened yesterday: try to figure out responder's hand given the auction and corresponding explanations. Assume serious bidding (if it's possible) and no system misunderstandings.

Scoring is IMPs, all white.

 

1NT1 - 22

23 - 34

35 - Pass

 

1 : 15-17

2 : Stayman

3 : no major

4 : shape ask (opener can show: 5-card minor; 4333; 4333; 4-4 minors). A similar asking bid would also be available over 2/.

5 : one 5-card minor

 

Partner has (41)35 (Axxx-x in majors), lets say: x-Axxx-xxx-AJxxx, and wanted to play game (3NT/5) if opener has the 3244 shape. However, without the superfit, he sign-offs in what he hopes to be a 5-3 fit.

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I would imagine responder is void in a major, and has values for 3N, but doesnt want to play there with a known 3-0 weakness. 4-0-6-3. However, that assumes that you could not bid 3d over 2d to show 4M-5m GF. It might be more likely he is (40)(36) and therefore is just guessing that partner does not have 5 clubs - clearly he did not have 3c available for this hand. Still think that a misunderstanding is most likely explanation. In practice cannot imagine these hands not driving game......
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Is this sequence part of this system or just some sort of "extended Stayman" ??

( hand from my files...Aug, 2006....)

 

[hv=pc=n&w=skq84ha53da5ca874&e=sa9hkq72d7cjt9653]266|100[/hv]

 

1NT - 2C

2S - 3D! (no M fit; 4H/5+minor )

3H! ( asks for minor) - 3S! ( Clubs; 3NT! would be Diam )

??

..3NT = not interested in Cl

..4C! = Minorwood( agrees Cl )

 

After:

4C! - 4H! = 2nd step, 1/4

 

4S! ( next step = cQ-ask) - ??

4NT! = cQ or extra length

5C! = no cQ

5D! = cQ and dK

5H! = cQ and hK

5S! = cQ and sK

After 5H!

Opener bids:

6C

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