This page is to help you understand the Rules of Bridge

When placing Dummies cards on the table place the longest suit on the left.

This may help Declare from thinking the longest suit are trumps.

A guide to when you should Announce or Alert partners bid (EBU site)

A revoke becomes established: (Law 63)

1. when the offender or his partner leads or plays to the following trick (any such play, legal or illegal, establishes the revoke).
2. when the offender or his partner names or otherwise designates a card to be played to the following trick.
3. when a member of the offending side makes or agrees to a claim or concession of tricks orally or by facing his hand or in any other way.

Please call the Tournament Director.

Every one should have a System card.  Your System card must match your partners card. Examples of System cards and blank cards are available from the EBU.

Download a System Card from the EBU Site