Rules of Double Choco:
- Divide the grid into rooms along grid lines.
- Each room contains two halves: one orthogonally connected area of shaded cells and one orthogonally connected area of unshaded cells. The two halves must be the same shape and size, although they can be rotated and/or mirrored compared to one another.
- A room can contain any amount of numbered cells. Numbers indicate the size of the half-room that that cell belongs to. For example, a 3 in a sheded cell indicates that that cell is part of a shaded area of size 3, which is one half of a room of size 6.