F or NF?
Due to (constant) student request, I have given in and written about this annoyingly tricky topic.
How hard can it be? "Just tell us Larry, which bids are forcing and which are not."
It is very hard. It requires study, memory and sometimes partnership agreement (PA).
F versus GF
In this series, it is important to recognize the difference betwee
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1053 
AQ102 
KQJ1054 