3x = A natural PRE-EMPT in the bid suit. An intervention after a strong NT by the enemy can be destructive when not vulnerable. Vulnerable you should make sure that there are tricks enough, so that an intervention will not be catastrophe. Clarification: West North East South (1NT) pass (pass) 2 (pass) 2 (x) ? pass = 6+ xx = 5 and 4, (Longer in ) 2 = and , Longer in (5-4/6-4) or equally long in M (4-4 or 5-5). 2 = 6 and 4. Against “Multi 2” X = TO-X, at least 13HP and at least 4-3 in the M. Suit = Natural. 2NT = 15-18HP (2NT-the system) Normally it will pay to wait until the opponents have clarified the opening bid before you take action! Against “Ekrens 2”. X = Shows an opening and at least 4-3 in the M.Interested in penalizing the opponents in at least one M. Sets up forcing pass. Any subsequent x is a PEN-X. 2x = Natural and NF. Against “Weak two”: X = TO-X. After X of weak 2 opening, Lebensohl is applied by the RH. 2NT = 15-18HP (the 2NT system: Puppet Stayman & transfers) 3 in the opening suit = The other M + one of the m. Against “Weak three”: X = TO-X. Suit bid = Suggested contract. Cue = 18+HP. Find a suit.
3x = A natural PRE-EMPT in the bid suit. An intervention after a strong NT by the enemy can be destructive when not vulnerable. Vulnerable you should make sure that there are tricks enough, so that an intervention will not be catastrophe. Clarification: West North East South (1NT) pass (pass) 2 (pass) 2 (x) ? pass = 6+ xx = 5 and 4, (Longer in ) 2 = and , Longer in (5-4/6-4) or equally long in M (4-4 or 5-5). 2 = 6 and 4. Against “Multi 2” X = TO-X, at least 13HP and at least 4-3 in the M. Suit = Natural. 2NT = 15-18HP (2NT-the system) Normally it will pay to wait until the opponents have clarified the opening bid before you take action! Against “Ekrens 2”. X = Shows an opening and at least 4-3 in the M.Interested in penalizing the opponents in at least one M. Sets up forcing pass. Any subsequent x is a PEN-X. 2x = Natural and NF. Against “Weak two”: X = TO-X. After X of weak 2 opening, Lebensohl is applied by the RH. 2NT = 15-18HP (the 2NT system: Puppet Stayman & transfers) 3 in the opening suit = The other M + one of the m. Against “Weak three”: X = TO-X. Suit bid = Suggested contract. Cue = 18+HP. Find a suit.