Normal sudoku rules apply. Every cage in the grid is either a P pentomino or an N pentomino. Every pentomino is completely filled by either a renban line or a thermometer, hidden behind the pentomino. Cells along a renban line contain a set of consecutive, non-repeating digits in any order. Digits on a thermometer must strictly increase as they move away from the bulb. The position of the bulb has to be deduced by the solver. Thermometers only make vertical or horizontal turns inside the pentominoes and don't branch. All the cages of the same shape hide the same constraint: the solver has to deduce which constraint is hidden behind each shape.