Practice
Start with the core track (first-book style). The Bidding Tips track is a step up — evaluation, balancing, help-suit tries, inverted minors, Lebensohl. AI-drafted extras stay clearly labeled at the end.
4 problems · listed core first, then Bidding Tips, then AI
A Light Opener With Shape
Decide whether an 11-count with 5–4 shape meets the Rule of 20 to open.
Difficult Opening DecisionsIntermediateMatchpointsNotrump, or the Major?
Choose an opening bid with a balanced 17-count that contains a five-card heart suit.
Difficult Opening DecisionsAdvancedMatchpointsVulnerability and the Weak Two
Judge a first-seat weak two when the vulnerability is in your favor.
Difficult Opening DecisionsIntermediateMatchpoints1NT With Five Hearts?
Decide whether a balanced 17-count with five hearts belongs in 1NT or 1♥.
Difficult Opening DecisionsAdvancedMatchpointsAI-drafted