From the 1st qualifying session in LM pairs in Las Vegas. The Bidding:
p-(p)-2c-(2s)
p-(p)-2nt-(p)
3nt
Lead is the ♠Q. Opponents appear to be experienced, but you don't have any idea if they're experts or not.
My thoughts at the table were: ♦K and ♣A are two key cards and chances are LHO has one of them, she might have bid 3s at these colors lacking both. If she has the ♦K, it's probably right to win the first trick, knock out the ♦K and eventually lead toward ♣K. If the ♦K is in the East hand, winning the first trick is wrong as LHO's spades are established immediately and she has the ♣A for an entry, restricting me to 2♠, 4♥ and 3♦ for a mere nine tricks. Also if I duck the first trick, I might be able to throw in LHO to lead away from the ♣A. I'm assuming here that LHO has only six spades not seven.
What's your plan ? Do you win the first trick or duck ?

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