lycier Posted June 11, 2012 Report Share Posted June 11, 2012 [hv=pc=n&s=sqt2hk976dk832c43&w=sk753hj5dqt64cqj9&n=s864haqt43d9c8765&e=saj9h82daj75cakt2&d=w&v=0&b=8&a=pp1np2cp2dp2np3nppp]399|300[/hv]How to avoid the disaster? This hand occured at a world competition by BBO live broadcasts in June 4,2010. Obviously,led H and downed one trick .So, how to find worthless doubleton and avoid a catastrophe? ----------------------------------------------------Here,simplified and tradional chinese characters version 如何避免灾难? 这副牌出自2010年6月4日在BBO转播的一场世界比赛时的真实牌面: 很明显,首攻H,直接宕一墩。那么,如何发现双张小而避免灾难的发生呢? - - - - - - - 如何避免災難? 這副牌出自2010年6月4日在BBO轉播的一場世界比賽時的真實牌面: 很明顯,首攻H,直接宕一墩。那麽,如何發現雙張小而避免災難的發生呢? Quote Link to comment Share on other sites More sharing options...
omaf Posted June 11, 2012 Report Share Posted June 11, 2012 2nt后3♠看上去很美 Quote Link to comment Share on other sites More sharing options...
U19 Posted June 11, 2012 Report Share Posted June 11, 2012 我以前在哪看到过的,好像是伯根还是谁的定约,就是用于1NT后,应叫人在3阶叫单缺的!后来在中游,我看到鬼鬼紫和search x用过,但后来我找了半天也没找到出处!如果用了这个定约的话,后面3阶叫3H,表示个什么的话,避免出问题,最后拉上4S,没问题! Quote Link to comment Share on other sites More sharing options...
yin970902 Posted June 12, 2012 Report Share Posted June 12, 2012 在2c问高花保证一门高花的情况下,在2nt之后设计个叫品【有人设计好了吗?要什么约定叫呢 :) 】,3♥问♠止张,3♠问♥止张,同时所叫高花保证3张配合。PD在所问高花有止张的情况下叫3NT;没有的情况下加叫到4阶打43配合的高花定约。[不会出现既对不上套也不会所问高花无止张的情况!] 那么上述叫牌进程将会是:W N E SP (P) 1NT (P)2♣(P)2♦(P)2NT(P)3♠(P)4♠(P)P(P) 如果这里W不是S套而是H套,则必然有止张叫回3NT即可。 Quote Link to comment Share on other sites More sharing options...
nigel_k Posted June 12, 2012 Report Share Posted June 12, 2012 I don't agree that this is a catastrophe. E/W are getting a minus score unless they can somehow stop in 3♦. At the point West bids 2NT, they may suspect that hearts are a weakness. But if 3NT does not make, how likely is it that 4♠ will make or that you can stop in a minor suit partscore at a makeable level? And in order to discover if this is possible, you will need an auction that reveals a lot of information to the opponents which will be very helpful to them whenever the hand is a normal 3NT contract. Quote Link to comment Share on other sites More sharing options...
chenxuemin Posted August 25, 2012 Report Share Posted August 25, 2012 期待解决方法 Quote Link to comment Share on other sites More sharing options...
yzdhy668 Posted August 25, 2012 Report Share Posted August 25, 2012 970902介绍的约定叫与在哈代2/1中约定有矛盾,哈代2/1:1N 2C后应叫人再叫3H/3S是斯莫轮。表示逼局高花4/5或4/6套。最好是不影响在哈代2/1中约定外找一个办法解决这类问题,否则就顾此失彼。 Quote Link to comment Share on other sites More sharing options...
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