louisix

7♣ is nearly impossible to reach, but IMO 6NT is much more easier to reach, compare to 6♣. The reason I mentioned 7♣ is to emphasize the horrible spade trap LOL

IMO... The problem is East will not be motivated after knowing West is 5143, because East K♥ here against a singleton will be downgraded. (and of course East can never know West singleton is A♥). As the result, even if West bid 3NT after the 3S, East will probably signoff at 4S and now West have to make decision all by his own now.

I have met an interesting board some day ago and I am still curious about the problem existed during the bidding. North ♠AT8xx ♥A ♦AKJ2 ♣Q97 South ♠9xx ♥K8x ♦Qx ♣AKJxx without any interfering, the bidding should not be much arguable at the first 5 bid. Most of the natural 2/1 system the bidding will go: N S 1S 2C 2D 2S 3C And here comes the problem. At the first insight I would say 3S is the choice for south, waiting for more information from north. But unfortunately as the card line, once the bidding confirms spade as the trump, it would much disaster while 6N is easy and 7C just need a good heart break (not worse than 6-3). It is quite strange to me like 3S is the correct but the dead choice right there. Is there any route to switch to club contract after that? Extra question: when the trump quality is bad, do you still raise partner major suit? or when would you raise and when would you not raise?