Result hidden below - I messed up and went off 2, working it out afterwards.
East passed, I rated my hand as 17 using the Pilowsky calculator. Turns out KR gives it 16.8. So I'm optimistic.
I venture into the ring with a delicate 1♣.
West astonishes me with 2NT 'unusual etc'. My partner; the bewildering North robot bids 3♣ - "competitive raise" 4+♣ yeah right.
East supports West - at least one of the robots is facing in the right direction.
I decide to show partner what I'm made of; 3S "5+♣;4+♠; 21-HCP; 19-22 total points" This bid is about 80% true - pretty good.
West puts up the white flag. North goes for broke 4NT. 5♥: 100% true.
6♣ by North. And West BANGS down his A♦: can you make it?
here's the whole hand
Spoiler