如何理解这个叫品的具体含义？

[lycier]

[hv=pc=n&s=sk82hkt63dkt64ckt&d=e&v=n&b=2&a=p1dp1sdr2c2hp?]133|200[/hv]

 

东家加倍的解释：双套技术性加倍

南家再加倍的解释：3张♠支持性再加倍

 

那么，北家在随后竟叫进程中叫出了第四花色！此时此刻，作为开叫人的南家应该如何理解这个叫品？如何应答呢？

[sfbcs]

先理解2H问H止张至少邀叫牌力，S也就先叫2NT显示低限有止张。以后N的任何再叫都逼局了，除非N自己pass了2NT。

[lycier]

先理解2H问H止张至少邀叫牌力，S也就先叫2NT显示低限有止张。以后N的任何再叫都逼局了，除非N自己pass了2NT。

 

嗯，我赞同这样的理解。

先捋清楚头绪：我在玩机器人Gib体系时发现的该叫品，过去一般人大多理解为pass过的应叫方所有再叫叫品都是自然。这样的定义简便易记，但缺点是缺乏更多牌情的表达。这副牌是这样的：

 

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=Robot&s=SK82HKT63DKT64CKT&wn=Robot&w=SAT9HJ85DJ93CJ986&nn=lycier&n=SQJ653HQ4DAQ75C54&en=Robot&e=S74HA972D82CAQ732&d=e&v=n&b=2&a=P1D(Minor%20suit%20opening%20--%203+%20%21D%3B%2011-21%20HCP%3B%2012-22%20total%20points)P1S(One%20over%20one%20--%204+%20%21S%3B%206+%20total%20points)D(Two%20suit%20takeout%20--%204+%20%21C%3B%205-%20%21D%3B%204+%20%21H%3B%205-%20%21S%3B%2011-%20HCP%3B%2012%20total%20points)R!(Support%20redouble%20-%203%20S%20--%203+%20%21D%3B%203%20%21S%3B%2011-21%20HCP%3B%2012-22%20total%20points)2C(4+%20%21C%3B%2010-%20total%20points)2H(Limit%20major%20raise%20--%205+%20%21S%3B%2010-12%20total%20points)P2S(3+%20%21D%3B%203%20%21S%3B%2011+%20HCP%3B%2012-14%20total%20points)P4S(5+%20%21S%3B%2012+%20HCP%3B%2012-%20total%20points)PPP&p=D8D4D3DQS3S4SKSAD9D5D2DTS2STSQS7SJC2S8S9HQHAH3H5CACTC6C4C7CKCJC5&c=10]400|300[/hv]

 

叫牌时北家其实是Gib，我坐南家。

2♥的解释就是限制性高花加叫，也就是自我限制性加叫叫品，节约了空间，节约了叫品，同时还可以使最终定约不至于叫得太高。而2♥本身如果再赋予您所说的基本含义的话，那就更加如虎添翼了。而且再下面另一种牌例中，你的此类说法无疑更为贴切实用。

 

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=Robot&s=SA42HT9DQ8752CAK8&wn=Robot&w=SJ9H8542DKJT93CQ9&nn=lycier&n=SKQT85HA6D64CT632&en=Robot&e=S763HKQJ73DACJ754&d=w&v=b&b=4&a=PPP1D(Minor%20suit%20opening%20--%203+%20%21D%3B%2011-21%20HCP%3B%2012-22%20total%20points)P1S(One%20over%20one%20--%204+%20%21S%3B%2011-%20HCP%3B%206-12%20total%20points)D(Two%20suit%20takeout%20--%204+%20%21C%3B%205-%20%21D%3B%204+%20%21H%3B%205-%20%21S%3B%2011-%20HCP%3B%2012%20total%20points)R!(Support%20redouble%20-%203%20S%20--%203+%20%21D%3B%203%20%21S%3B%2011-21%20HCP%3B%2012-22%20total%20points)2H(4+%20%21H%3B%2010-%20total%20points)3H(Limit%20major%20raise%20--%205+%20%21S%3B%2011-%20HCP%3B%2010-12%20total%20points)P4S(3+%20%21D%3B%203%20%21S%3B%2014+%20HCP%3B%2015-20%20total%20points)PPP&p=DAD2D3D4HKH9H5HASKS7S2S9D6S3D5DJHQHTH4H6S6S4SJSQC2C7CKC9D7DTS5C4C3C5CACQD8D9S8H3CTCJC8H2H7DQH8STC6HJSADK]400|300[/hv]

 

注意3♥的解释也是限制性高花加叫，仔细体会这种方法的精细妙用。

[lycier]

个人以为：在竟叫进程中，pass过的应叫人再叫的所有叫品都是自然。这样的定义非常适合公众大众体系。而对于搭档间的约定体系的制定，如此定义太过粗糙了。