2 Carreau overcall on a 1NT opening

2♦ overcall
After a 1NT opening, a 2♦ overcall shows an unspecified major with 6 cards Obviously this artificial bid is forcing (if Responder has already passed)

S	W	N	E

Exercise E9186 2♦ promises an unspecified major with 6 cards.

S	W	N	E

Agressive overcall showing a major with 6 cards.

The follow on bids after 2♦ : for the P of the Overcaller

Overcaller's Partner bids a major in relation to his point strength.

If weak, he bids his cheapest major, Overcaller will rectify if necessary
If he wants to know Overcaller's major and strength, he bids 2NT (forcing relay)

S	W	N	E

Problem E9393
After Responder's 2♥ weak bid, North passes or corrects to 2♠

S	W	N	E

Problem E9394
2NT relay bid : fit in both majors and good honors. North has to bid his major.

Follow on bids after 2♦ and 2NT : Overcaller's 2nd bid.

After a NT opening and your 2♦ overcall, if your P bids 2NT, he is probably fitted in both majors and is asking you to choose and indicate the strength of your overcall

An overcall minimum in points bid 3♣ for ♥ and 3♦ for ♠
An overcall maximum in points bid 3♥ if you have ♠ and 3♠ if you have CO! (Warning!)
Your Partner rectifies the bid : he will therefore be Declarer and the 1NT Opener will be seated in front of dummy ...

S	W	N	E

With minimum points S bids that he has ♠ (with ♥ he would have bid ♣). North rectifies at 3♠ and contract sign off!

S	W	N	E

With a "nice" hand and 13HCP, South bids his 6 ♠ cards by bidding ♥. North rectifies the bid to 4♥ and becomes the Declarer.

Main

Detail specifications 31BB - Level 1 ★

2♦ overcall on a 1NT opening

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