Relay to 3NT with a 9-card spade fit

Players are used to playing some 5-3 major fit hands in 3NT, though that can come unstuck. Relay is good with those, through being able to check for 6-card fits in the side suits.
It’s rare to play 3NT with a 5-4 major fit but we managed it here. The 6-card minor fits were ideal, as was South’s heart holding. Admittedly, 4-3-4-2 would be even better but this travelled well with 4♠ failing.