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含5M开叫1nt的风险

#1 User is offline   lycier 

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Posted 2012-November-26, 06:00



南家就是Jec,他首攻,结果下三。遥想当初如果开叫1而非1nt,结果不管怎样,都不会导致输300分的结局。
问题是:您是如何看待含5张高的1nt。
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#2 User is offline   haikuo 

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Posted 2012-November-26, 19:42

此牌控制很好,双张也不好,不适合开1N,哈哈!
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#3 User is offline   fg7788 

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Posted 2012-November-26, 19:47

按哈代《二十一世纪2盖1》,五张高花开叫1NT,严格符合三个要求:
1.另一门高花必须三张
2.不能有较差双张
3.软点较多

按王建坚的科学自然一书的要求:
1.均型,15-16HCP,5张H可以开叫1NT
2.均型,15HCP的5张S可以开叫1NT
3.均型,17HCP的5张H和16-17HCP的五张S都是开叫1H\1S再叫2NT或3张低花

所以:
按哈代大师的标准,此手牌五张S16HCP,有差双张,全是硬点,显然不符合开叫1NT的条件
同样也不符合王建坚大师的1NT开叫标准
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#4 User is offline   madongjun 

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Posted 2012-November-26, 20:53

View Postfg7788, on 2012-November-26, 19:47, said:

按哈代《二十一世纪2盖1》,五张高花开叫1NT,严格符合三个要求:
1.另一门高花必须三张
2.不能有较差双张
3.软点较多

按王建坚的科学自然一书的要求:
1.均型,15-16HCP,5张H可以开叫1NT
2.均型,15HCP的5张S可以开叫1NT
3.均型,17HCP的5张H和16-17HCP的五张S都是开叫1H\1S再叫2NT或3张低花

所以:
按哈代大师的标准,此手牌五张S16HCP,有差双张,全是硬点,显然不符合开叫1NT的条件
同样也不符合王建坚大师的1NT开叫标准

引经据典,讲得很好。实战庄家1NT下3就是对这种不按规矩叫牌的代价的最好的诠释。
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#5 User is offline   U19 

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Posted 2012-November-27, 04:00

曾经算过带5M的牌开1NT的竞叫率数值,大概是1M开叫是1NT的2倍半的强度,但这里的竞叫率能说明什么,我自己的定义也只能自己解释,就是:在碰到极限不安全的情况下,开1NT拿(相对)负分是开1M的两倍半的结果。

对于带5M的牌开1NT,我认为是体系框架体系不能满足某牌型,只能扩大1NT开叫的牌型分类,是不得以!能不用则不用,是不得以而为之的定约;而且其后也为此打了N多的补丁,其实大家都知道用傀儡其实还是有所代价的——某些自然叫品会被叫高一阶!
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#6 User is offline   hejiang 

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Posted 2012-November-27, 09:52

学习了
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#7 User is offline   CHINA_TD 

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Posted 2012-November-27, 19:12

持最高花色,除非再叫觉得困难,一般不要开叫1NT
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