Against multi 2D

This is the first of the ACBL's two recommended defenses against a Multi 2 opening bid.

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

In Direct Seat

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

Overcall	Meaning
Double	A Takeout double of spades.
2	A Takeout double of hearts.
2	Natural, 5+ spades, non-forcing.
2NT	16-18 HCP, balanced. Systems "on" (Stayman, Jacoby transfers...).
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.

After 2 - Pass - 2/

Bid	Meaning
Double	Takeout double.
2	Over an enemy 2 bid, this is natural, 5+ spades, non-forcing.
2NT	15-18 HCP, balanced. Systems "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.

After 2 - Pass - Pass

Bid	Meaning
Double	Takeout double of diamonds.

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

After 2 - Pass - 2 - Dbl - 2

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.

After 2 - Pass - 2 - Pass - 2 - Pass - Pass

Bid	Meaning
Double	Takeout double of spades.