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此副牌面如何运用反巴特约定叫

#1 User is offline   601821297 

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Posted 2013-May-08, 01:50


问题一：北家的2C可以单张C吗？
问题二：南家此时再叫2NT承诺均型吗？
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#2 User is offline   zyp163 

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Posted 2013-May-08, 03:08

如果用反巴特：
1H-1N
2C-2H
这个2H有什么用？
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#3 User is offline   dvd 

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Posted 2013-May-08, 05:31

1楼，2c通常保证3+，特殊情况是4522，这个时候2c只保证2张；南再叫2n应该是承诺d有止的邀叫，不承诺均型。
2楼，2h表示弱牌示选，只保证2张h支持。
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#4 User is offline   ynhhyjb 

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Posted 2013-August-20, 21:31

1、2C保证2张
2、南再叫2NT，承诺4张C
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