Cascade, on Aug 22 2007, 01:30 PM, said:
As it is with partner having three or more likely four clubs on general principles partner will have the king at least 50% of the time and over half of the rest it will be onside as you pointed out.
I agree with the 50% part of partner having it, however,
I pointed out that the club K is more likely to be offside and not onside, when partner does not have it. I think it is less likely that the club King is in the 2S bidders hand (making it onside). If anything, RHO is likely short in clubs. Therefore, I only want to bid the grand when partner holds the club K.
Assuming partner does hold the club K, it is the diamond king that rates to be onside if needed.

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