Scoring: IMP
East opened 3S. At the other table, this was the contract (!!!), for -150. Our table made more sense.
Partner (South) doubled 3S, I placed it at 4H, and we scored up +450. Easy hand to play -- club lead.
6D, as you can see, fails on spade-spade.
The discussion concerned 6NT. Assuming a club lead also, 6NT makes on a neat line. Win the club, then cash five diamonds. Now, lead a spade toward the Queen, an unusual Morton's Fork.
If West rises with the Ace, you take 12 tricks. So, West must duck. This yields the seventh tricks and reduces East to six cards. If he ditches a heart, the fourth heart is a trick. If he ditches a club, you simply cash the second club and exit a club, establishing trick twelve as a third club.
Hence, this seems like a Morton's Fork, a Squeeze without the Count, and two Scizzors Coups, three of which happen simultaneously on trick seven.
Note, however, that the killing lead seems to be a heart. This blocks up transportation and is a Scissors Coup against Declarer on opening lead.
Thus, the lead, to a degree, determines who gets scissors couped.
Unfortunately, we only played in a boring 4-2 heart contract...

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