Heeding the amount of high card points, but paying attention to the placement and distribution of a solid trump suit, the Trump Swiss convention aids both players to reach a slam contract.

Guidelines of the Concept

The guidelines are basically the same as with the Swiss Convention. However, emphasis is placed upon the 4 Clubs or 4 Diamonds bid meaning that the 4 Clubs or 4 Diamonds bidder has at least 4-card support for the Major suit including two of the top three honors, or, and this is important, 5-card support for the Major suit including at least the Ace or the King.

Several examples should clarify the differences. Employing the Swiss conventional response method the responder shows a 4-card trump support and at least the possession of two top honors.

South   North   Meaning
A9863
K54
K86
KJ
 
KJ74
AJ9
Q974
AQ
   
1   4   Swiss conventional method

The difference between the Swiss coventional method and the Trump Swiss conventional method is shown below. The Trump Swiss conventional response method also promises at least a 4-card support for the Major suit of partner, but does not promise two of the top honors in that Major suit.

South   North   Meaning
A9863
K54
K86
KJ
 
J754
AJ9
Q974
AQ
   
1   4   Trump Swiss conventional method

Using the Swiss conventional method the responder would jump to 4 Clubs. Using the Trump Swiss convention, the responder would jump to 4 Diamonds. The responder does have a 4-card trump suit, but he does not have two honors of the Major suit.

     

Guidelines of the Concept

As with other conventional response methods the members of the bridge community also construct variations of variations and Inverted Trump Swiss is a variation of the concept, and which communicates different information to the partner.

This variation functions in the following manner:

South   North   Meaning
A9863
K54
K86
KJ
 
KJ1074
AJ9
Q97
AQ
   
1   4   Inverted Trump Swiss conventional response method promising a 4-5 good trump support with 12-15 points. The response also promises that a splinter bid is not possible and that no singleton or void is held.
         
South   North   Meaning
A9863
K54
K86
KJ
 
10745
AJ9
Q974
AQ
   
1   4   Inverted Trump Swiss conventional response method promising a 4-5 bad trump support with 12-15 points. The response also promises that a splinter bid is not possible and that no singleton or void is held.
         
In order to show a splinter bid with an Inverted Trump Swiss response method, then the responder will first bid the other Major suit, which shows an undisclosed splinter. The opener then bids the cheapest suit possible, as a relay, to discover the singleton or void. The opener also has the option of signing off.

 

 

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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