The origin of these natural responses is unknown. They are, reportedly, generally taught and played in the country of Israel. These responses are based on the conventional method of natural responses, and are natural responses instead of artificial responses. These natural responses are a version and/or variation of the Natural Responses method. The only artificial response is the first response of 2 Diamonds. See: Natural Responses.

Official Designation

Note: The official designation is natural call, which means that the bid or call, which reflects the character of the holding, suggests a suitable final strain, and which does neither imply , nor indicate, nor signal an artificial, or even semi-artificial meaning, or slightly ambiguous meaning.

Parameters of the Concept

The designation of the conventional method is the key to understanding this version or variation. If the first response is anything other than 2 Diamonds, then the responder guarantees at least a 5-card suit in the bid suit and at least 5 high card points.

Note: Whether or not this requirement can be extended to include a maximum / minimum number of losing tricks is decided by the partnership. The number of losing tricks is not included in the requirements of the five-five natural response method.

The first responses and their meanings are shown below. The first response of No Trump is not specified and is left to the partnership to assign any specific information. The first response of No Trump can also remain idle and have no significance per partnership agreement

Examples are not provided since the concept should be self-explanatory.

Opener		Responder		Meaning
2				Artificial. Strong. Forcing.
		2		Shows a holding which does not correspond to any of the requirements listed below for other suit bids. (Generally this first response is considered to be the same as with the original concept of Natural Responses, namely, artificial and negative showing fewer than 6/7 high card points, and shows a possible distribution of 4-4-4-1 or 4-4-3-2 or 4-3-3-3.)
		2		A suit at the lowest level shows a 5-card Heart suit plus with 5 plus high card points.
		2		A suit at the lowest level shows a 5-card Spade suit plus with 5 plus high card points.
		2 NT		Per partnership agreement.
		3		Shows a minimum of a 5-card Club suit and 5 plus high card points.
		3		Shows a minimum of a 5-card Diamond suit and 5 plus high card points.

Continuances

All continuances following a first response higher than 3 Diamonds, as outlined in general below, are a matter of partnership agreement as to whether they will be employed or assigned any meaning by the partnership.

Opener		Responder		Meaning
2				Artificial. Strong. Forcing.
		3		Promises a good Heart suit with only one loser, such as: AKQ10, AKJ10, KQJ10, etc.
		3		Promises a good Spade suit with only one loser, such as: AKQ10, AKJ10, KQJ10, etc.
		3 NT		Promises a balanced to semi-balanced holding with a range of 10 to 12 high card points, and no 5-card suit.

 

 

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.