:ph34r: As to wether it is forcing or inviting , breaking down the auction should be a priority. 1st 1C, 1 D, 1 NT, 3C , the 1D responce using the Walsh principle are either very weak , invitational or game force, pending on sequence. This sequence does show strenght with game values, where as 2C over 1NT is weak , and on a crisscross or inverted minor 1C 2D , would tend to present invitational values; by deduction 3C must be a game going auction, with the D King 3rd and the A K in harts, vs Q XXX in spades 3 options present themselves. A- raise the D to 3 D , thus impllying that the majors are very weak [ not really] B- bid 3 H as a cooperative bid with tolerence for D [cheapest control card] C- bid 3 NT with a wide open spade suit, hoping to catch P with the 10 X . Keeping in mind that 1 NT limited the hand, with a posible 5/5 in the minors or better P would lean to the minor suit contract, if not holding the 10 X in spades or the J X . A cooperative bid of 3 H would stand out , with the ever existing bailout bid of 4 C . :D