There is a lot of discussion on responses to a string 1C opening. As an experienced user of 1C-1D=negative or Semi-positive hand, I encounter a lot of trouble in the Bidding sequence 1C-(pass)-1D-(bid) holding a Semi-positive hand as the 1D bidder. A solution to this problem is to not bid 1D on these hands, and use 1D as a GF bid. A possible structure is: 1♦ = Game force, denies 5440 shape 1♥ = Semi positive, denies a unbalanced hand with a 5 card major 1♠ = Double Negative 1N = Semi positive, Unbalanced with 5 Hearts 2♣ = Semi positive, 5+ Spades and (4 Clubs or 4 Hearts) 2♦ = Semi-positive with 5+ Spades and 4 Diamonds 2♥ = Semi-positive with 6 Hearts 2♠ = semi-positive with 6 Spades 2N = Game forcing 5440, major suit void 3♣ = Any 7 card suit to the AKQxxxx 3♦ = Game forcing 5440, Diamond void 3♥ = Game forcing 4=4=5=0 shape 3♠ = Game forcing 4=5=4=0 shape 3NT = Game forcing 5=4=4=0 shape Now my question is: how does one continu after 1C-1D, assuming no interference. Do you use a relay system. If so, who does the asking and who describes the hand? Does anyone have an example structure for me? I'd love to hear your opinion on this topic, Flinthos