Five linked murder sudoku cases. Solve each crime scene — the room where the killer was caught gives you one clue initial. Spell the trail, catch the burglar.
CASE №1/5 · 4×4
Witness Statements
No two figures share a row or column. The suspect alone in the victim's room is the killer.
📖 What the statements mean tap to collapse
In a room / NOT in a roomThat suspect's room is fixed (or excluded). Place them there first.
On a rug / Beside a tableWhat the suspect stands on or next to. Rug and table cells are drawn inside rooms.
At a wallOnly the outside edge of the whole board counts. The thin lines between rooms are partitions, not walls.
In a cornerOnly the four corners of the board itself — two outside edges meet there.
Same room as X / Alone with XX is a suspect or the victim. "Alone with" means exactly two figures in that room.
Exactly K figures / Room lockedRoom counts include the victim. "Locked" means nobody was inside.
Case Closed!
Where was the killer standing when the body was found?
Clue initial secured:
The trail ends here
The initial letters of the five crime-scene rooms spell what the Cat Burglar came to steal. Name it:
🐾 You caught the Cat Burglar!
Badge earned: Rookie Paw Reach level 5
Badge earned: Detective Reach level 10
Badge earned: Chief Detective Reach level 20
Badge earned: Mastermind Reach level 35
Badge earned: First Case Closed Close your first case
Badge earned: Serial Solver Close 3 cases
Badge earned: 6×6 Cracked Crack a 6×6 case
Badge earned: Private Eye Close 10 cases
Badge earned: Warm-Up 3-day daily streak
Badge earned: Streak Keeper 7-day daily streak
Badge earned: Night Owl 14-day daily streak
The burglar is behind bars — but the mansion never sleeps. Play random cases →
Detective’s Wall
Closed a case? Leave a note for the other detectives.
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How the Case Trail Works
The Case Trail is a five-case murder sudoku story. A Cat Burglar has struck five times, and every crime scene is a logic puzzle in its own right. Each case uses the classic murder sudoku rules: place every suspect on the grid so that no two figures share a row or a column, follow the witness statements, and the suspect left alone in the victim's room is the killer.
Solve the scene. Cases 1 and 2 are gentle 4×4 mansions; cases 3 to 5 are trickier 6×6 houses with more suspects and rooms.
Point to the room. After every accusation you must name the room where the killer was caught with the victim. Correct answers unlock the next case — and one clue initial.
Crack the trail. The five initials, read in order, spell what the Cat Burglar was hunting for. Name it to close the case file for good.
Your progress is saved in your browser, and every case is fixed — the same puzzles for every detective. New to murder sudoku? Warm up with random cases first.
Case Trail FAQ
What is the Murder Sudoku Case Trail?
A five-case story mode: every case is a fixed murder sudoku puzzle, and solving one reveals the initial letter of the room where the killer was caught with the victim. The five initials spell what the Cat Burglar was after.
Do I need to solve the cases in order?
Yes — each solved case unlocks the next. Your progress is saved in your browser, so you can close the tab and continue the trail later.
Are the trail cases the same for everyone?
Yes. Every case in the trail is a fixed, hand-picked puzzle, so you can compare notes and discuss the trail with other players.
Is the Case Trail free?
Yes, like every GridPaw game the Case Trail is completely free to play in your browser — no download and no account required.
