cnszsun

I will play the same. If lho wins spade ace, I can play diamond king on my right hand and ruff finesse it.

If there is no club return from lho forcing you to make early decision, I'm wondering which line has better odds: the double squeeze as suggested, or 3 rounds of heart, then club finesse.

1C-(1S)-DBL-(Pass) 2D Some say double only promises hearts and opener's 2d is similar to reverse. What's the commom understanding?

Who bid 1S? opponent?

为什么要纠结于叫什么名称，关键是这里讨论的两类叫牌序列其含义是有区别的。 1c-1s 2h,普通的逆叫进程，逼叫一轮，但不保证进局。 1c-1h 2s, 和跳叫新花一样，逼叫进局。 所以两者在牌力要求上还是有区别的。

At the 2nd trick, maybe we should play ♥Q rather than A to imply values in ♣? Is this treatment common among experts?

对，跳逆叫，和一般逆叫的区别是跳逆叫逼叫进局，和跳叫新花类似。

If trump doesn't break, will east lead from AQxx without knowing where 10 is? I guess unlikely.

I didn't realize the acution is so important for this problem. Anyway, it's like this: 1C 1D 1N 2C 2H 2S 3S 4S 1C:precision, 16+; 2C then 2S: an invite hand with 5+ spade suit.

Let's change your hand to Kxx J QJxxxx xxx, now, partner must shift to a heart at the 2nd trick. What I want to know is whether the Jack from you implies the suit preference for heart. Our discussions up to now seem a little bit off the topic.

Thanks, I agree with all your points. Just one thought, usually we don't play honour cards to show even count except doubleton, so Jack could be assigned special meaning. Sure, maybe I overthink here.

Yeah, you are right. The club shift will also beat it most likely. Because I'm interested in how experts interpret the signal under such circumstances, let's just suppose we don't hold club king to make a heart shift necessary.

Opps are in 4S, sry, I can't recall the auction. dummy: Axx AK10x xx AJxx yours: Kxx J QJxxxx Kxx Parter led diamond A, (from AK, we lead A). If we can get 2 diamonds, I'm pretty sure the heart shift will beat the contract, so I played diamond J, would you take it as a preference for heart assuming you are opening leader?

If declarer has 2 clubs, we always beat it. But, if he is 6421 or 5521, we need partner to shift to club, so I discard club ace as an alarm signal. I guess partner will understand this.

Will the choice be the same if you are favorable?