Defenses to Dutch Two-Bids (Muiderberg, Lucas)

One Defense (contributed by gerrit4_g)

• Double is a willingness to double their major
• Simple Overcall is the same as overcalling a natural One Level opening bid
• Cue bid asks for stopper (invitational to 3NT)
• 4 shows strong hand with Clubs and the other major
• 4 shows strong hand with Diamonds and the other major
• 4NT shows a strong minor 2-suiter (not used often)

Super MAF defence (contributed by gerrit4_g)

• with a strong 2-suiter bid your shortest (!) suit. Responses: bid cheapest of partner's possible suits with 0-6 HCP, other bids show 7+ HCP.
• Double is a strong 1-suiter. Responses are artificial step relays:
  • first step = 0-6 HCP
  • second step = 7-8 HCP
  • third step = 9-10 HCP, etc.
• 2NT is a strong, balanced. Responses:
  • 3NT=10+ HCP,
  • suit bids at 3/4/5 level are natural and show 5+ cards.
• Pass is none of the above (partner to balance with 10+ points)

Another Defense (contributed by uulkje)

• Double is an opening hand with 4 cards in higher ranking suit, or else a very strong hand
• bid in a suit is an opening hand with 5+ cards
• 2NT is a 16-18 balanced hand. Responses:
  • Stayman and transfers