1NTオープンの後
1NT‥15(+)~18(-)HCP,Balance,Often 5card Major(5-3)
-Pass‥0~7HCPバランスハンド
-2C‥Stayman,※メジャー4枚なしNatural invitaion(8~9HCP)含む
-2D‥Transfer to 2H(H5枚以上,0HCP~)※Walsh Slam Relay含む
-2H‥Transfer to 2S(S5枚以上,0HCP~)
-2S‥Minor Suit Stayman(Slam try)
-2NT‥Transfer to 3C(C6枚以上orD6枚以上,S/O,0HCP~)
-3C‥Invitation to 3NT(C6枚以上)
-3D‥Invitation to 3NT(D6枚以上)
-3H‥Invitation to 4Hor4S(S5枚H5枚)
-3S‥Forcing to 4Hor4S(S5枚H5枚)
-3NT‥9(+)~15(-)HCP,S/O,スラムはなし
-4C‥Gerber(A-asking)
-4D‥Transfer to 4H(H6枚以上)
-4H‥Transfer to 4S(S6枚以上)
-4S‥Reserve
-4NT‥Quantitative Invitation to 6NT(16~17HCP)
-5NT‥Quantitative Invitation to 7NT(20~21HCP)
-6NT‥Small Slam(18~19HCP)
-7NT‥Grand Slam(22~HCP)
※Stayman(メジャー4枚なし)
1NT-2C;any-*2NT(Natural invitaion),1NT-2C;2H-*2S(S4枚)
※Smolen Transfer(Game Forcing)ステイマン経由
1NT-2C;2D-*3H(S5枚H4枚),1NT-2C;2D-*3S(S4枚H5枚)逆を言う!
※Walsh Slam Relay
1NT-2D;*2H-*2S;*2NT-any(Slam try)
これはちょっと覚えるのは無理かもー(苦笑)