When partner opens the bidding with a Major, if we have a fit for their suit we have accomplished our goal of locating a Major suit fit. We need a lot of ways to show partner this fit.
When we open a NT and partner uses an artificial conventional responses, like Stayman or Transfers, then the opponents might double as lead directing. We want to use this double against them. Here we discuss our options for bidding after this double.
Important Competitive Bidding Webinars