The shortened abbreviation for this double is DSI, which refers to a double by one opposing player meaning that partner should do something intelligent. Essentially the double refers to a low level double, which shows / promises cards and is properly considerd cooperative. The player, in a competitive auction employs this type of double when there is no clear action possible otherwise. The exchange of information, however, does not refer to a penalty double, but rather to determine the best action to be taken in the continuation of the competitive auction.

Decision of the Partner

The partner of the doubler decides upon the best course of action to be taken. Unless the partner of the doubler can determine from the holding that an action is demanded, then the partner will continue, but if the partner of the doubler can make an absolute judgment call to convert partner's double to a penalty double, then and only then is the partner permitted to pass in order to out-score the field. This conversion of the double, however, will be a very rare case in any competitive bidding auction.

Sources

Note: Mr. Larry Cohen has written an article, posted online at his website, about the description of this do something intelligent double.

Note: In order to provide an example of this do something intelligent double research has found / discovered a most credible example in the Australian Youth Bridge Bulletin of May-June 2013, which is authored by Mr. Justin Howard of Melbourne, Australia, and titled 2013 Victorian Youth Team Trials. For the convenience of the reader this particular excerpt of that daily bulletin is presented and preserved in .pdf file format for archival purposes and for future reference.

 

 

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.

 


     
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