pine cone

谢谢你的答复~那普通的正信号也有迟疑问题，为何单说奇偶信号的问题呢

有人说北美很多比赛禁止使用奇偶信号，请问哪位了解情况？帮忙解答一下，北美的比赛是否禁止奇偶信号？禁止的是什么样的奇偶信号？

N----E----S-----W 1H--1S--2D*----2S /----/----3C.. 2D is forcing one round, and now the problem is: 3C be forcing or not?

[hv=d=n&v=n&s=skha6d986cakqjxxx]133|100|Scoring: IMP[/hv] This is the west hand.

The lead of North shows his D is 5 or 985. This hand was played on bbo last night. I was north and my D was actually single. I think there is little chance to beat 5C except D ruff. And I also think my p's 4D bid is not good. Does anybody agree with me?

[hv=d=n&v=n&e=saq8h853dk104c8765&s=s742hkjt7daqj732c]266|200|Scoring: IMP[/hv] the bidding went like this: W N E S -- / / 1D 2C / 3C X / 3S / / 4C / / 4D 5C / / x // first round: north lead D5, east D4,south DJ, west D6 now, what should south do?

Q1: I'm setting South [hv=d=e&v=n&s=sq109haq932dq42c96]133|100|Scoring: IMP[/hv] biding goes like: E S W N / / 3D / / ? what can I do now? pass, 3h or double? Q2: now change to North's hand [hv=d=e&v=n&s=sq109haq932dq42c96]133|100|Scoring: IMP[/hv] biding goes like: E S W N / / 3D ? what can North do now? pass, 3NT or double? or bid others?