1. What is the weakest 4-card heart suit with which you will respond 1H rather than 1NT? (Assume 2D response not available.)
2. Is your answer any different if you have 9 high-card points in your hand?
3. Is your answer any different if you have a void or singleton? (Assume 1S and 2D responses are still not available.)
4. Is you answer any different if 2D response is available?
Partner opens 1NT. What is the weakest heart suit with which you will respond 2C Stayman? (Assume 3 or fewer spades.)
Thanks for your replies.

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