基础牌感：这牌如何应叫

[lycier]

[hv=pc=n&e=skj976542hdkjtct7&d=s&v=n&b=15&a=p1cd?]133|200[/hv]

 

1- 应叫1♠

2- 应叫4♠

3- 应叫其他叫品

 

你会选择什么？为什么？

[sungh]

南北的♥配合很好是肯定的了。局况有利先1♠观察一下，反正高花压低花。其次，假如同伴有4张红心，做防守也是一种选择。

[qlpsecond]

我选择4S。

 

同伴开叫了，最怂也就是8个输墩，所以，可期待联手完成4S。

至于防守？是的，黑桃和方块的间张结构都处在有利位置，但是，我仍然愿意主打。同伴开叫，一般有2个防守赢墩，可是，自己手上的赢墩没那么漂亮，所以......还是自己打吧。对手要是争到5阶去，我不介意防守。

[lycier]

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=机器人&s=S8HJ765D6542C9853&wn=机器人&w=SAT3H8DQ987CAK642&nn=机器人&n=SQHAKQT9432DA3CQJ&en=lycier&e=SKJ976542HDKJTCT7&d=s&v=n&b=15&a=P1C(Minor%20suit%20opening%20--%203+%20%21C%3B%2011-21%20HCP%3B%2012-22%20total%20points)D(Takeout%20double%20--%202-%20%21C%3B%203-5%20%21D%3B%203-4%20%21H%3B%203-4%20%21S%3B%2012+%20total%20points)1S(Free%20bid%3B%20new%20suit%20--%204+%20%21S%3B%208+%20total%20po)P2S(Simple%20raise%20--%203+%20%21C%3B%204%20%21S%3B%2011+%20HCP%3B%2012-15%20total%20points)3H(strong%20rebiddable%20%21H%3B%2020+%20total%20points)4H(1+%20%21C%3B%201+%20%21D%3B%204+%20%21S%3B%20no%20%21CA%3B%20no%20%21DA%3B%20%21HA)P4N(Blackwood%20%5BS%5D%20--%203+%20%21C%3B%204%20%21S%3B%2013-15%20total%20points)P6H(Odd%20number%20of%20keycards.%20Void%20in%20H%20--%201+)P6S(3+%20%21C%3B%204%20%21S%3B%2013-15%20total%20points)PPP&p=D2D7DADKD3DTD4D8S2S8SASQSTH4SKH7SJC9S3H9S9C3C2H3S7H6C4HTS6H5C6H2S5D5D9CQS4C5H8CJDJD6DQHACKHQC7C8CAHKCTHJ]499|350[/hv]

[sungh]

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=机器人&s=S8HJ765D6542C9853&wn=机器人&w=SAT3H8DQ987CAK642&nn=机器人&n=SQHAKQT9432DA3CQJ&en=lycier&e=SKJ976542HDKJTCT7&d=s&v=n&b=15&a=P1C(Minor%20suit%20opening%20--%203+%20%21C%3B%2011-21%20HCP%3B%2012-22%20total%20points)D(Takeout%20double%20--%202-%20%21C%3B%203-5%20%21D%3B%203-4%20%21H%3B%203-4%20%21S%3B%2012+%20total%20points)1S(Free%20bid%3B%20new%20suit%20--%204+%20%21S%3B%208+%20total%20po)P2S(Simple%20raise%20--%203+%20%21C%3B%204%20%21S%3B%2011+%20HCP%3B%2012-15%20total%20points)3H(strong%20rebiddable%20%21H%3B%2020+%20total%20points)4H(1+%20%21C%3B%201+%20%21D%3B%204+%20%21S%3B%20no%20%21CA%3B%20no%20%21DA%3B%20%21HA)P4N(Blackwood%20%5BS%5D%20--%203+%20%21C%3B%204%20%21S%3B%2013-15%20total%20points)P6H(Odd%20number%20of%20keycards.%20Void%20in%20H%20--%201+)P6S(3+%20%21C%3B%204%20%21S%3B%2013-15%20total%20points)PPP&p=D2D7DADKD3DTD4D8S2S8SASQSTH4SKH7SJC9S3H9S9C3C2H3S7H6C4HTS6H5C6H2S5D5D9CQS4C5H8CJDJD6DQHACKHQC7C8CAHKCTHJ]499|350[/hv]

6♥的具体含义是什么？我想学习一下。谢谢。有空门时如何回答。