The Old Harbor is one of Kludoku's 23 crime scenes. Someone has been murdered, and every suspect must be placed back on the map — one per row, one per column — using nothing but testimony and logic. Whoever ends up alone with the victim is the killer.
Rooms you will investigate: dock, pier, marina, fishmarket, warehouse, harbormaster, coldstore, boathouse, breakwater.
Furniture and features that appear in clues: boat, crate, shark, chest, cabinet, radio, lamp, window, computer. Blockers occupy squares, seats and beds can hold a suspect, and wall pieces anchor "beside" testimonies.
The Old Harbor appears in free practice cases and rotates through the shared daily cases at five difficulties, from a 5×5 beginner grid to a 9×9 expert case that may include a lying accomplice.