does ben have defensive signal? in trump or NT . http://localhost:8080/app/bridge.html?deal=(%27987.AQ94.543.QJT%20432.K.KQJT987.98%20AKQJT.J32.A2.432%2065.T8765.6.AK765%27,%20%27E%20None%203D%203S%20P%204S%20P%20P%20P%20%27)&P=5&board_no=2&S=x&A=x&T=2 West Leading CK against 4S, can east play defensive signal by c9/c8?
does ben have defensive signal? in trump or NT .
http://localhost:8080/app/bridge.html?deal=(%27987.AQ94.543.QJT%20432.K.KQJT987.98%20AKQJT.J32.A2.432%2065.T8765.6.AK765%27,%20%27E%20None%203D%203S%20P%204S%20P%20P%20P%20%27)&P=5&board_no=2&S=x&A=x&T=2
West Leading CK against 4S, can east play defensive signal by c9/c8?