Competitive Bidding (2): Useful Conventions

Defence to 1NT: Landy and Asptro 

• Doubling the opponent’s 1NT opening bid
• Overcalls after a 1NT opening bid. The 2NT overcall.
• Landy Defence to 1NT
• Responding to the Landy 2§ overcall
• Asptro Defence to 1NT

Competitive bidding after 1NT: Lebensohl and a “wriggle” 

• Dealing with enemy interference when partner opens 1NT
• Modifications when the enemy overcall is conventional
• Transfer Lebensohl - “Rubinsohl”
• Partner’s 1NT is doubled - a simple “wriggle”
• Helvic - a more efficient “wriggle”

Defence to weak two-bids, multi 2D and preempts 

• Defence to the opponents’ opening weak 2-bid
• Defending against the Multi 2¨ opening bid
• Defending against weak opening 3-bids
• Defending against openings at the 4-level and higher

Michaels Cue Bids and the Unusual Notrump

• Competing on 2-suited hands
• Michaels cue bids when the opponents open with a bid in a major suit
• Michaels cue bids when the opening bid is in a minor suit
• The Unusual No Trump
• Competing when partner has made a 2-suited overcall

Splinter Bids and the Jacoby 2NT Response 

• Raising partner’s major suit opening bid
• Splinter bids
• The Jacoby 2NT Response
• Jacoby 2NT response after a minor suit opening bid
• The Jacoby Two-Step