In a semi-final match in the Senior World Championships, you have the option of using one of your specialized treatments.
None vul, North deals. As East, you hold:
1!D: 11-15, 2+ diamonds
You have some special agreements against a Precision 1!D opening. They are:
DBL: Assumed to be at least 4-4 in the majors.
1NT: 4-card major, 5+ card minor. Responses are same as with (1NT)-DBL where double shows a 4-card major and a 5+ card minor.
Pass than double: Likely a strong NT
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