“Up the Line Principle” for 4-Cards Major Bid
The 4-Cards Major Up-the-Line principle is in play when you want to find a possible 4-4 fit in a Major suit, rather than another fit in a minor suit.
Read Moreby Denis Kristanda | 28 Dec 2019
The 4-Cards Major Up-the-Line principle is in play when you want to find a possible 4-4 fit in a Major suit, rather than another fit in a minor suit.
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