Defence conventions:

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Against 1 openings

• Take out double
• Weak jump overcall
• Chopenhagen
• Cue-Bid K.A.T.
• Gardeners 1NT overcall
• Vienna 1NT
• Michaels Cue-Bid
• Rosenkranz double

Further bidding

• Herbert
• Lebensohl against 2H/2S

Against 1NT

• Astro
• Brozel
• Cappeletti
• Crash
• DONT
• Landy
• Ripstra defense
• Trash
• Woolsey

Against pre-empts

• Scrambling 2NT
• Ateanter convention
• Bekkevold
• Flannery defense
• Multi Fryer