Defense to Multi 2D (Option 2)

This is the second of the ACBL's two recommended defenses against a Multi 2 opening bid. It's the same as Option 1, except for the meanings of double and a 2 overcall.

Note that it is geared toward defending a weak two, the most common hand type shown by a Multi opening.

When RHO makes a Multi 2 opening, the conventional overcalls are as follows.

Call	Meaning
Pass	MAY want to make a takeout double of hearts or spades, but must pass because Double shows general strength (below). Reopen with a double in the next round.
Double	Balanced, 13-15 HCP or strong, 16+ HCP with any distribution.
2	Natural, 5+ hearts, non-forcing.
2	Natural, 5+ spades, non-forcing.
2NT	16-18 HCP, balanced. System "on" (Stayman, Jacoby transfers...).
3	Natural, 6+ clubs, non-forcing.
3	Natural, 6+ diamond, non-forcing.
3	Natural, 6+ hearts, non-forcing. Stronger than a simple overcall.
3	Natural, 6+ spades, non-forcing. Stronger than a simple overcall. A 4 response is a cuebid.
4	Leaping Michaels, showing 5+ clubs and a 5+ card major.
4	Leaping Michaels, showing 5+ diamonds and a 5+ card major.

Bid	Meaning
Double	Takeout double.
2	Over an enemy 2 bid, this is natural, 5+ spades, non-forcing.
2NT	15-18 HCP, balanced. System "on".
3	Natural, 6+ clubs, non-forcing.
3	Natural, 6+ diamond, non-forcing.
3	Natural, 6+ hearts, non-forcing.
3	Natural, 6+ spades, non-forcing. Stronger than a simple overcall. A 4 response is a cuebid.
4	Leaping Michaels, showing 5+ clubs and a 5+ card major.
4	Leaping Michaels, showing 5+ diamonds and a 5+ card major.

Bid	Meaning
Double	Takeout double of diamonds.

The bidding should be treated as if the opponents opened a weak two-bid in diamonds.

This sequence occurs after partner makes a takeout double of hearts, but opener corrects to spades.

Bid	Meaning
Double	For penalties.
3	Natural, 6+ hearts, non-forcing.
3	Artificial, asking for a spade stopper. Without one, partner should bid his cheapest long suit.

Bid	Meaning
Double	Takeout double of spades.