Murder mystery logic puzzles
Somebody did it.
You'll prove who.
Every suspect has given a statement. Every statement pins them somewhere on the floor plan. Only one of them shared a room with the victim. No guessing – just sharp thinking.
9 free cases in your browser · no account needed
The briefing
Three laws of the scene
Each case is a single moment, frozen: the instant the deed was done. Everyone present is sitting, standing or lying somewhere on the floor plan, and each has given a statement about where. Rebuild the scene square by square – once everyone is back in place, the guilty party has nowhere left to hide.
Rebuild the scene, then name the guilty: the only suspect who ended up in the same room as the victim.
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1
One per line
Nobody – the victim included – shares a row or a column with anyone else. Place one person and their whole row and column close for everybody else.
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2
Mind the furniture
People stand on bare floor or use a deckchair, a sun lounger or a beach towel. Coolers, palm trees and surfboard racks are in the way – nobody can be on those squares.
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3
Alone with the body
Exactly one suspect ends up in the same room as the victim. That suspect is guilty – and the victim counts as a person in every clue.
Solve a case right now
Nine cases from Death at the Beach, from easy to expert. Free in your browser – your progress stays on your device.
The books
Open the case file
Death at the Beach
40 murder mystery logic puzzles
Sun, sand and sudden death. Forty logic mysteries at a seaside resort in high season – from the ice-cream stand to the lifeguard tower. Every suspect has a statement, every statement pins them somewhere on the map, and only one of them shared a room with the victim.
- 40 cases in four chapters: easy, medium, hard and expert
- Every case has exactly one solution
- Tip-offs and full step-by-step verdicts
- Large 8.5 × 11 in paperback, full colour
From easy to expert
Work your way up to Cold Cases
Each book climbs through four chapters. The floor plans grow, the line-ups get longer and the statements get cagier – but every case still has exactly one answer.
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Easy
On the Beat
Warm-up cases. Every statement pulls its weight, and one clean line of reasoning leads home.
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Medium
Plain Clothes
More suspects, bigger floor plans. Expect to combine two statements before a square gives way.
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Hard
Major Crimes
Busy scenes and tight-lipped witnesses. Keep track of who could still reach each room.
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Expert
Cold Cases
The ones that stumped the department. Every deduction is there to be found – you will have to dig for it.
Case 1 · Cone of Silence
Inside the book
One case, one spread
Pinned suspect cards and their statements on the left, the crime scene on the right – with a scratch grid and a box for your verdict.
Stuck? Every case has a tip-off, and the verdicts at the back walk you through the solution step by step.
Field guide · Chapter I: On the Beat
New to Cludoku?
Start on the beat
Each book opens with a briefing, a fully worked Case Zero and a field guide to everything you will meet on a floor plan. The warm-up chapter eases you in; by the expert chapter, every statement pulls its weight.
Questions for the detective
Before you take the case
Short answers from the case file. Anything else? Send us a note.
Do I need to know Sudoku or logic puzzles?
No. Every book opens with a short briefing, a fully worked Case Zero and a field guide to everything you meet on a floor plan. The first chapter is made of warm-up cases.
Is every case really solvable?
Yes. Every case has exactly one solution, and it can be reached by pure deduction – no guessing. Before a case is printed, two independent solvers check it.
What if I get stuck?
Every case has a tip-off that points to a good first move – nothing more. The verdicts at the back walk you through the full solution, step by step.
Can I play online?
Yes – nine cases from Death at the Beach are free to play in your browser, from easy to expert. No account needed; your progress stays on your device.
What do I get in the book?
40 cases in four chapters, with tip-offs, step-by-step verdicts and a detective’s logbook to record every case you close. It is a large 8.5 × 11 in paperback in full colour.
When can I buy it?
The book is coming soon. Join the case files at the bottom of this page and we will tell you first.