About Ghosted Rooms

Ghosted Rooms is a new kind of logic puzzle built around room partitioning, spatial reasoning, and unique solutions.

The puzzle is about finding a single valid way to split the grid into rooms that fit the allowed shapes.

What makes it special?

Each puzzle gives you a grid, a set of allowed room shapes, and numbers that must stay distinct inside a room. The challenge is to reconstruct the one arrangement that satisfies every rule.

How it works

The board is divided into rooms that match the provided shapes.
Rotations and reflections are usually allowed.
Numbers inside a room must all be different.
There is always exactly one valid solution.

Publication

You can read the formal description here:

Ghosted Rooms: A Novel Grid-Based Puzzle with Unique Room Partitioning

Books

Explore the Ghosted Rooms puzzle books on Amazon:

Ghosted Rooms puzzle books

Licensing

The Ghosted Rooms puzzle specification (rules, abstract, and descriptive text) is licensed under CC BY 4.0 .

Puzzle instances (grids, examples, and booklets) are licensed under CC BY-NC 4.0 .

Contact