Fourth seat overcalls after a support response
Act as if you were in second seat! The only difference being that you need to be a teeny bit stronger, that's all! (The responder might not be that weak)
- double promises 4 cards in the unannounced suits in a slightly stronger hand than if you were in second seat.
- Overcall with a six-card suit the two level and seven cards at the three level. You could have one less card if the suit contains the high cards.
- A 3 NT overcall requires solid stoppers in the opponents' suit (they possess 9 or 10 cards in that suit!