Ghosted Rooms – A Novel Puzzle Book with 104 Challenges

Note (Update):

This booklet is based on an earlier version of Ghosted Rooms, where each room was required to have exactly one missing number.

In the current version of the puzzle, a room may have any number of missing values — from none, to several, or even all of them.

I’m excited to present my very first Ghosted Rooms puzzle booklet!

This 6×9 inch collection features 104 original challenges across three different grid sizes, all with complete solutions.

What makes Ghosted Rooms unique?

• Each grid must be partitioned into rooms of exactly ten cells.
• Room shapes are predefined: four basic forms that, with rotations and reflections, create 18 possible variants.
• The twist: every room is missing exactly one number, and it’s your task to deduce it.
• The partitioning is always unique — there is only one valid way to divide the grid into rooms.

✏️ Solving tip: Use pencil and paper, because you’ll often need to revise your lines. Or try two colored pens — one for sketching tentative boundaries, the other for finalizing the solution.

This is a brand-new kind of logic puzzle, unlike anything you’ve seen before. Fans of Sudoku, Kakuro, and other grid-based puzzles will discover something both fresh and challenging.

👉 Download / view the booklet

Enjoy the challenge!
— Zoltán Vrencian