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这付牌如何争叫和应叫

#1 User is offline   fp651026 

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  Posted 2013-September-07, 01:11


北家如何争叫？南家又如何应叫？
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#2 User is offline   nbxkh 

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Posted 2013-September-07, 05:24

北除了加倍，没有其他选择。南叫3d，北再扣3h，南再叫4d，最后全pass。43配的4阶方块，是一般的分寸。
运气好，还能mk。
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#3 User is offline   waterwang 

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Posted 2013-September-07, 23:18

2H-X-P-2NT,P-3C-P-3D,
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#4 User is offline   yunling 

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Posted 2013-September-08, 10:07

P 2H X P
2NT P 3H P
3NT AP
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#5 User is offline   nbxkh 

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Posted 2013-September-08, 17:06

View Postyunling, on 2013-September-08, 10:07, said:

P 2H X P
2NT P 3H P
3NT AP

首先要明确，同伴加倍后，根据叫牌的规范，叫2nt需要多少的点力？
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#6 User is offline   HeartA 

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Posted 2013-September-08, 22:17

这副牌，西开叫2H后，南北很难停在安全的定约。
如果南北使用lebensohl：
(2H) - X - pass - 2N
pass - 3H - pass - 4C/D
pass - 5C - ppp

或者
(2H) - X - pass - 2N
pass - 4C - ppp

如果不使用了lebensohl:
(2H) - X - pass - 3D
pass - 4C - ppp
Senshu
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