Wards, an operating theatre and a waiting room — cases where everybody has a professional reason to be anywhere.
Patient wards, an operating theatre, intensive care, a pharmacy, a reception, a staff room, a corridor that connects everything to everything. The hospital plan is a hub and spokes, and that shape shows up in the room-neighbour clues more than in any other theme.
The connecting corridor is the crux: it touches most rooms, so a clue about being next to it eliminates far less than it appears to. Read occupancy clues first here — with wards that hold several people, how many were in a room is usually more informative than which room it was.
A case picks its floor plan from this theme’s room pool, so the same places recur across the drawer and you learn to read them: Reception, Waiting Room, Operating Room, Ward, Lab, Pharmacy, X-Ray, Intensive Care, Common Room, Emergency Room, Delivery Room, Sterilization, Office, Cafeteria, Hallway. No single case uses all of them — the generator and the hand-built cases alike take a subset, which is why two cases in the same setting can still feel unalike.
5 cases — 3 easy, 2 hard, on boards from 6×6 to 8×8. Every one is verified to have a single solution reachable by forward deduction alone, so none of them needs a guess.