| Unusual 
    Versus Unusual (Unusual Over Unusual, Invisible Cuebid) - When opponents' make an Unusual Notrump (or Michaels Cuebid) overcall showing a two-suited hand, many 
    players employ invisible cuebids of the opponents' implied suits and other 
    treatments to bid effectively.  While several methods exist, here is 
    one popular treatment: Also 
see page 70 in: 
        
        Better Bidding With Bergen: Volume 2 - Competitive Bidding, Fit Bids, 
        and More 
      
        | 1. | A bid in partner's suit or 
        a new suit is competitive without showing game interest |  
        | 2. | A cuebid of the opponents' 
        lower implied suit shows an invitational limit raise of partner's suit, 
        typically showing 5 cards in the suit not implied by the opponents |  
        | 3. | A cuebid of the opponents' 
        higher implied suit shows game forcing values, typically showing 5 cards 
        in the suit not implied by the opponents |  
        | 4. | A double shows the ability 
        to penalize at least one of the opponent's implied suits.  Any 
        subsequent double by the partnership is for penalty |  
Examples: 
      
        | 1C - (2N) - 3C | Competitive with Club, no 
        interest in game |  
        | 1S - (2N) - 3H | Competitive with 5 Hearts, 
        no interest in game |  
        | 1S - (2N) - 3C | Invitational, typically 2+ 
        Spades and 5 Hearts |  
        | 1S - (2N) - 3D | Game forcing, typically 2+ 
        Spades and 5 Hearts |  
        | 1N - (2N) - X | A double shows values in at 
        least one minor and the ability to penalize opponents in one or both 
        their suits.  |    |