After opener has bid 1 of a major, responder bids
4C = 14-16 HCP and a balanced hand without support for major
4D = 12-14 HCP and a balanced hand without support for major
The most important Bridge Bidding Conventions
- Walsh Relays
- Walsh Transfer System
- Mexican 2 Diamonds
- Nilsland Defense
- Tartan Two Bids
- Minor Suit Stayman - 2D response to 1NT
- Minor Suit Stayman - 2S response to 1NT
- Minor Suit Swiss
- Two Way New Minor Forcing/XY Notrump rebids
- Eastern Cue-Bid
- Western Cue-Bid
- Romex Trial Suit Bids with Power
- 2c Open