The Book
Sudoku Detective
90 logic and mystery puzzles
Paperback · 238 pages · full color · 5 × 8 in · Estudio Coartada
Where to Buy It
Buy on amazon.comBuy on amazon.co.uk
The book is also available in Español, Français, Italiano, Deutsch, Português, Nederlands
90casesall original
26settingsfrom beach to North Pole
5levelsfrom very easy to expert
✓solutionsexplained step by step
How a case is solved
1 · The cards
2 · The map
3 · The solutionEvery chapter, a world. Every case, a new map.
A house, the beach, a barn, an emergency room, a book club, a spa hotel, a museum at night, a Paris apartment building, a night train, a polar station, a ryokan, an excavation in Egypt, a mansion, an ocean liner… and ten bonus cases with animals.



Step by stepStart knowing nothing
The book opens with a sample case solved step by step: what each card says, how squares are crossed out and how you get to the murderer.
- The rules on one page, no jargon.
- The first cases take a few minutes.
- Difficulty rises chapter by chapter.
- Tips for experts: the liar and the accomplice.
90 logic and mystery puzzles: a murder, a map and a handful of suspects who tell you where they were. Put each of them on their square and find out who was left alone with the victim.
SUDOKU DETECTIVE combines the sudoku rule with the logic of a whodunit: one person per row and per column. Each suspect tells you where they were (“next to the fireplace”, “in the first column”, “not with Diana”), the general clues narrow down the rest, and when only one free square is left, that is where the victim was. Whoever shares that area is the murderer.
No prior knowledge needed: the book opens with a case solved step by step, and from there the difficulty rises little by little. The first cases take a few minutes; the last ones, with a dozen characters, a liar or a hidden accomplice, will have you thinking like a real detective.
What’s inside
- 90 original cases, each on its own double-page spread: the suspects’ cards on the left and the full-color map on the right.
- 26 illustrated settings: a house, a beach, a barn, an emergency room, a book club, a spa hotel, a museum at night, a Paris apartment building, a night train, a polar station, a Japanese ryokan, an excavation in Egypt, a mansion, an ocean liner… plus ten bonus cases with animals that take up room on the map too.
- Five levels, from very easy to expert, on maps from 5×5 to 12×12. In some of the hard cases one of the suspects is lying; in some of the expert cases the murderer has an accomplice.
- Fully explained solutions: the solved map and the reasoning, step by step, so you can see exactly where the murderer slipped past you.
- Illustrated glossary of objects and animals: what can be occupied, what blocks the way.
All you need is a pencil. The map, the clues and the satisfaction of pointing out the culprit come with the book.
A puzzle book for adults, perfect for anyone who enjoys sudoku, logic puzzles and games, brain teasers, mystery and detective novels or deduction games. An original gift, and fun to play as a family.
Can you solve all 90?