GrantK

I watched a tourney on BBO 2 days ago. In a hand the declarer (He was west) played 6♠ and there was a key suit, Q8642 A93. He could lose 1 trick only. In the acutual layout south had singleton J and declarer played low toward ace and low from dummy. As you can know no matter how he played the contract would fail. With this combination, assuming no entry problem, what's the best way to lose only 1 trick. Also, what if A8642 Q93?