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41stWBTC欣赏:5431约定叫(3)


lycier

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[hv=sn=South&s=SK82HAJT2DJT65CAK&wn=West&w=S963H94DA94CT9532&nn=North&n=SAQ7H7DKQ732CQ764&en=East&e=SJT54HKQ8653D8CJ8&d=e&v=n&b=2&a=P1NP3H!(3-1-4/5)D4DP4S!P6DPPP&p=H9H7HQHADJD4D2D8D5DAD3H5&c=12]499|350[/hv]

结果:6S=

 

 

另一桌:结果6N=

 

 

[hv=sn==South&s=SK82HAJT2DJT65CAK&wn=West&w=S963H94DA94CT9532&nn=North&n=SAQ7H7DKQ732CQ764&en=East&e=SJT54HKQ8653D8CJ8&d=e&v=n&b=2&a=P1NP3H!DRP4DP4HP4SP4NP5SP6DPPP&p=STS2S6SAD2D8DJDA&c=12]499|350[/hv]

 

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5431约定叫,是四花色转移的一部分。我刚发过贴,得到零回答。

 

 

      四花色转移

      

同伴开叫1nt,以下为四花色转移应叫:

1、2d转h;2h转s;2s转c;2nt转d

2、3c:低花55,不够成局的牌;

3d:低花55,逼局

3、3h:54低花,s单,逼局

3s:54低花,h单,逼局

 

另注:也有直接叫高花表示单张的,看约定使用4花色转移后,不再使用低花思台曼。

 

不是四花色转移的一部分。

 

我在·论坛以前也有专帖介绍。在很多的世界各国桥牌论坛上,牌手们发现:

3-1-4-5

3-1-5-4

1-3-4-5

1-3-5-4

这四种牌型很难描述,而出现的概率却很大,迫使一些专家们在论坛上呼吁启用5431约定叫,经过多年的研究实践,专家们的心得是:使用5431约定叫时,还要要求,而且一定邀请应叫人持牌的3张高花一定有大牌张分布,否则宁弃勿用!!!

请读者自行参悟吧。

 

 

 

 

 

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