• 我们用Jacoby 2NT来表示13P+ 4张开叫高花平均/半均型的牌。
  

• 我们用Reverse Bergen 表示4张开叫高花，低于12点的牌。
  

• Splinter: 应叫人跳叫单张表示4张开叫高花支持，12-15
  

1H-3S, S 单张， 1H-4m, 低花单张 1S-4m/4h, 单张

注意： 1S/1H-3NT是to play

• Mini splinter
  

• Drury
  

• 对手插叫后见竞争部分和参考链接： Response Over Opp's takeout double
  

• Wolff Signoff
  

1h-1s 2nt 3c; pass or correct, responder also can pass 2nt

• XYZ
  

1H-1S-1NT-2C/2D

• 高花game try
  

1M-2M-2NT: 2NT is a game try, 请求搭档进一步描述牌型，应叫方叫出的三阶新花,是短套（1张或双张），8-9点，4阶新花是5张套，接受邀局。
1M-2M-3阶新花，也是邀局，希望搭档在新花上有帮张（大牌或者短套）就进局。
1M-2M-3M, 阻击性叫牌，不是邀局。

Jump Shift
1H - 1S
3C: GF, with 4 card side-suit, OR strong 1 suit;

3D asks: 3H = 4 of C; 3S= 4 of D; 3NT=3 of S support; 4C H and C are 55+, 4H: 6+H Single suit

3D: 5D +5H, GF

1H - 1NT
3C: GF, with 4 card side-suit, OR strong 1 suit H

3D ask, 3H=4 of C, 3S=4 of D, 3NT=4 of S; 4C=5+C, 4D = 5+D, 4H= 6+H

3D: 5D + 5H GF

1S - 1NT
3C: GF, with 4 card side-suit, OR strong 1 suit S

3D ask, 3H = 4 of C, 3S = 4 of D, 3NT = 4 of H. 4C=5+C, 4S=6+S. After 3NT, 4H = transfer to S

3D: 55 in D and S, GF