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DBL or 1S What is the difference?

#1 User is offline   kgr 

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Posted 2004-October-17, 04:01

You play a system like SAYC: you open 5 card M and 4 card ♦
After the bidding:
1♣-(Pas)-1♦-(1♥)-

DBL and 1♠ now both show 4-card spade? (..or do you only bid 1♠ with 6-5)?
What is the difference between them?

..And similarly:

After the bidding:
1♣-(Pas)-1♦-(1♠)-

DBL and 2♥ now both show 4-card Heart?
What is the difference between them?
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#2 User is offline   helene_t 

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Posted 2004-October-17, 04:23

Double is a ballanced hand. Partner can rebid a five-card diamonds.
1♠ is unballanced. Partner can give prfference to clubs on a doubleton.

If the overcall is 1♠, 2♥ would show extras so dbl can be either ballanced or unballanced.

Note that if partner bids 1♥, a double shows 3-card support and says nothing about the unbid suit, whether it's a minor or a major.
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