Double and 2NT are used to show non-touching two-suiters.
Meaning | |
---|---|
Double | Clubs + hearts |
2 | Diamonds OR hearts + spades |
2 | Hearts OR spades + clubs |
2 | Spades OR clubs + diamonds |
2 | Clubs OR diamonds + hearts | 2NT | Diamonds + spades |
Overcaller should have a good 5+ card suit at the 2-level, or a 6+ card suit if forcing the bidding to the 3-level. Similarly, overcaller should have at least 5-5 length with any two-suiter that requires partner to bid at the 3-level.
In response to Suction, advancer usually assumes a one-suited hand, and bids that suit. If overcaller has only shown a two-suiter (i.e. Double or 2NT), then advancer usually takes a preference in either suit. Any other bid by advancer is natural.
The benefits of Suction:
The problems with Suction:
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