NT, north leads. NS need 6 tricks.
Spoiler
♦A pitching a spade (unless east pitches a spade), east has to pitch ♣9 because a spade will allow a spade to be established and a heart gives all of the remaining tricks away. Now a club is ducked (east pitching a spade) and the forced club return squeezes east in the majors.
West is on lead after the club is ducked (North pitches a spade)
If you lead a club immediately, the 9 prevents you from ducking the trick to west. If you duck to east, he returns a spade, breaking your communication for the squeeze. If you switch the ♣8 and 9, the squeeze also works by ducking a club, then winning the next club, crossing to the ♥A, and leading the ♦A.
West is on lead after the club is ducked (North pitches a spade)
If you lead a club immediately, the 9 prevents you from ducking the trick to west. If you duck to east, he returns a spade, breaking your communication for the squeeze. If you switch the ♣8 and 9, the squeeze also works by ducking a club, then winning the next club, crossing to the ♥A, and leading the ♦A.
If South has a ♥ less and an extra black card, (as in this diagram) then I think Molyb has a
Non-material triple and fratricide squeeze
North to lead and make 6/7 at notrump