Free case files / Print at home
Free printable murder Sudoku cases
Download a complete mystery, place every suspect, test every statement, and name the person who shared the victim’s room.
01 / Direct answer
What can I print and solve?
These free printable murder Sudoku cases are one-page spatial logic mysteries. Every case is available for US Letter and A4 paper with a room grid, suspects, truthful statements, deduction space, compact rules and an upside-down solution. Place one suspect in every row and column, make every clue fit, then identify who shared the victim’s room.
02 / Start here
Three short cases.
One clean deduction.
New to Detective Sudoku? Begin with a 6×6 case designed for roughly 15 minutes.
03 / Case archive
Choose your next investigation.
Every case is a complete standalone puzzle. Open the case page to preview it and choose US Letter or A4.
04 / How to investigate
Print. Place.
Prove.
No number arithmetic and no guessing. The murderer follows from the room plan and the statements.
- 01
Place every suspect once
Every row and column holds exactly one person.
- 02
Make every statement true
Respect rooms, walls, furniture, directions and exact distances.
- 03
Identify the murderer
The person sharing the victim’s room is the culprit.
05 / Continue on iPhone
Need a real hint, not the answer?
The PDFs keep the solution upside down for when you choose to check it. Detective Sudoku’s real hints instead identify the clue behind the next deduction and explain why a suspect must—or cannot—occupy a position.
See how real hints work →06 / Frequently asked questions
Before you print.
What is a printable murder Sudoku case?
A printable murder Sudoku case is a spatial logic puzzle in which you place suspects on a room grid, make every written statement true and identify the person sharing the victim's room.
Are these classic number Sudoku puzzles?
No. Detective Sudoku replaces digits and 3x3 boxes with suspects, rooms, furniture and truthful spatial clues while keeping the rule that each row and column contains one suspect.
Are the printable cases really free?
Yes. All 11 English case files can be downloaded in US Letter or A4 format without an account, email address or payment.
Do the printable PDFs include solutions?
Yes. Each one-page PDF prints the solution and murderer in small upside-down text at the bottom so you can avoid seeing it until you are ready.
What paper size do the PDFs use?
Choose US Letter for 8.5 x 11 inch paper or A4 for 210 x 297 mm paper. Both editions use portrait orientation and should be printed at 100% or Actual Size when possible.