This method of defense against a Two Diamonds opening by the opponents, whereby the 2 Diamonds opening bid is clarified as a Multi 2 Diamonds opening bid, was devised by Mr. Danny Kleinman, bridge expert, bridge author, and bridge theorist.

Concept of Multi 2 Diamonds

The Multi 2 Diamonds opening promises:

1.	a Weak Two bid in either of the two Major suits,
2.	or a balanced holding with enormous values,
3.	or a strong 4-4-4-1 distribution,
4.	or a strong Two Bid in a Minor suit.

The defense method following a Multi 2 Diamond opening devised by Mr. Danny Kleinman follows:

Defense
Double:	This is a Takeout of a weak 2 Hearts.
2 :	Promises Hearts and a Minor suit.
2 :	Promises Spades and a Minor suit.
2 NT:	This is a Takeout of a weak 2 Spades.
3 :	This bid is natural.
3 :	This bid is natural.
3 :	This bid is natural and strong with a suit sufficient in length and strength, that it can not be the suit of the opener.
3 :	This bid is natural and strong with a suit sufficient in length and strength, that it can not be the suit of the opener.
3 NT:	This bid is natural and is generally based on a running Minor suit.
4 :	This bid is strong and shows Clubs and Hearts - Leaping Michaels.
4 :	This bid is strong and shows Diamonds and Spades - Leaping Michaels.

Using this method of defense, the delayed calls show:

Double:	This shows a strong balance.
2 :	This bid promises both Minor suits.
3 :	This bid promises Clubs and a 4-card Major suit in the Major suit, which the opener does not have.
3 :	This bid promises Diamonds and a 4-card Major suit in the Major suit, which the opener does not have.
3 :	This bid is natural.
3 :	This bid is natural.
4 :	This bid is strong and shows Clubs and Spades - Leaping Michaels.
4 :	This bid is strong and shows Diamonds and Spades - Leaping Michaels.

 

 

If you wish to include this feature, or any other feature, of the game of bridge in your partnership agreement, then please make certain that the concept is understood by both partners. Be aware whether or not the feature is alertable or not and whether an announcement should or must be made. Check with the governing body and/or the bridge district and/or the bridge unit prior to the game to establish the guidelines applied. Please include the particular feature on your convention card in order that your opponents are also aware of this feature during the bidding process, since this information must be made known to them according to the Laws of Duplicate Contract Bridge. We do not always include the procedure regarding Alerts and/or Announcements, since these regulations are changed and revised during time by the governing body. It is our intention only to present the information as concisely and as accurately as possible.