Version 1: The origin of this defense method is unknown. Once the opponents have opened the bidding auction with a Multi 2 Diamonds, which normally shows one of three possible types of holdings, then the following defense method is employed.

Some Multi 2 Diamonds openings also show a fourth type of opening, namely a 4-4-4-1 distribution, so the defenders should first acquaint themselves with the version employed by their opponents.

This defense method is normally employed in the immediate position since the Multi 2 Diamonds is a forcing bid, which the partner of the opener may not pass.

Immediate Position

Opponent		Intervenor		Meaning
Multi 2
		Double		Shows either a 13-17 semi-balanced to balanced holding with 13-17 high card points, or any distributional pattern with 18 plus high card points.
		2		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Heart suit.
		2		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Spade suit.
		2 NT		Shows a balanced to semi-balanced holding with 17-20 high card points with at least one stopper in both Major suits. All responses, such as Stayman and Transfers are employed as had the intervenor opened with 2 No Trump.

Fourth Position

The defense method uses a different approach in the fourth position as shown below. The two Major suits are handled separately. The following outline shows the defense method for a response by partner of the Multi 2 Diamonds opener, who responds with 2 Hearts.

Opponent		Defender		Partner		Intervenor		Meaning
Multi 2		Pass		2		Double		This is a Takout of Hearts.
						2		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Heart suit.
						2 NT		Shows a semi-balanced to balanced holding with 15-18 high card points.
						3		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Club suit.
						3		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Diamond suit.
						3		Any cuebid of opponent's suit is an individual partnership agreement.
						3		Shows a balanced to semi-balanced holding with 17-20 high card points with at least one stopper in both Major suits. All responses, such as Stayman and Transfers are employed as had the intervenor opened with 2 No Trump.

The following outline shows the defense method for a response by partner of the Multi 2 Diamonds opener, who responds with 2 Spades.

Opponent		Defender		Partner		Intervenor		Meaning
Multi 2		Pass		2		Double		This is a Takout of Spades.
						2 NT		Shows a semi-balanced to balanced holding with 15-18 high card points.
						3		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Club suit.
						3		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Diamond suit.
						3		Natural. Shows opening values and at least a 5-card solid or a 6-card semi-solid Heart suit.
						3		Any cuebid of opponent's suit is an individual partnership agreement.

If you wish to include this feature, or any other feature, of the game of bridge in your partnership agreement, th en 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.