1C* 1D*
1H*     any 16-18 HCP, unbal               (低限, 詢問高花張數)
1S*     1)any 24+ HCP, BAL                 (迫叫成局, 詢問控制)
        2)any FG hand, unbal
1N      15-18 HCP, BAL                     (強無王)
2x      19-21 HCP, 5+x, NF                 (答叫者再叫就FG)
2N      19-21 HCP, BAL
3x*     19-22 HCP, 4441/5440, x+1 short    (報上一級短門)
3N*     19-21 HCP, minors 55+
4C*     23+ HCP, 4441/5440, m short
4D*     23+ HCP, 4441/5440, H short        (報上一級短門)
4H*     23+ HCP, 4441/5440, S short        (報上一級短門)