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system over nat overcall?

#1 User is offline   gwnn 

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Posted 2007-March-15, 12:48

We use (1NT)-2M as a natural overcall, usually 6 decent cards (solid values vs weak NT, potential noise vs strong NT). What's the best structure over this? We really like Robson-Segal, but would that mean that almost every response is fitted? Any ideas? Thanks in advance.
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#2 User is offline   helene_t 

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Posted 2007-March-15, 12:57

Over a strong NT, it makes sense only to bid with a fit. You aren't looking for 3NT after the opps opened 1NT.

Against a weak NT, you may be looking for 3NT.
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#3 User is offline   whereagles 

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Posted 2007-March-15, 13:27

You can treat this overcall in the same way as (1x) 2y (non-jump)

(1NT) 2M

Now advancer bids:

2♠ (over 2♥) = F1, constructive
2NT = fit, inv+
3m = F1, constructive (fit-bid if by passed hand)
3M = noise

Easy, no? ;)
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#4 User is offline   MFA 

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Posted 2007-March-15, 19:55

New suit is F1, 2NT invitational, 3M invitational.
Michael Askgaard
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#5 User is offline   jtfanclub 

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Posted 2007-March-16, 10:06

whereagles, on Mar 15 2007, 02:27 PM, said:

You can treat this overcall in the same way as (1x) 2y (non-jump)

(1NT) 2M

Now advancer bids:

2♠ (over 2♥) = F1, constructive
2NT = fit, inv+
3m = F1, constructive (fit-bid if by passed hand)
3M = noise

Easy, no? :P

I happen to like...

2NT=invitational, forcing to 3M.
3M=noise, interest in sacrificing over their game bid.
new suit= constructive, NOT forcing.
Jump in a suit= Splinter.

I don't like generic new suit forcing, not when the opponents have some strength...you only really need new suit forcing when slam is a possibility. Fit bids should work, I would think.
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