[hv=d=n&v=n&s=sq2hakj93da62ckq9]133|100|Scoring: IMP North opens with 1NT (12-14 HCP balanced) Easts overcalls with 2♠[/hv] So it's likely that we have a slam in hearts or NT (as it turned out we did) but how can we find it? Generally it would be safe to assume that we don't have a stopper in spades as a 1NT opening doesn't require one. I did that and bid 4♥, but it turned out that my partner did have the ♠K and we ended up +2. Other tables, not using ACOL (or weak 1NT) opened with 1♣, 2♣ and 1♦ had no oponent overcalls and played 6♥ or 6♣. My question is, is there a way to find the slam with a weak 1NT opening?