“The Last House Guest” is a Murdoku case from the House & Home category: a board of 9×9, 8 suspects and one victim. Read the clues, work out where everybody was standing, and name the suspect who was left alone with the body.
The Board
The floor plan as the case hands it to you: 9×9, rated Hard, with 5 rooms. Every person — 9 in all — takes a row and a column of their own.
C1
C2
C3
C4
C5
C6
C7
C8
C9
R1
P
C
T
C
P
C
R2
T
T
T
P
R3
C
C
C
R4
T
T
P
R5
P
T
T
R6
C
T
T
R7
R8
S
C
C
C
R9
S
P
S
S
S
S
Floor plan of “The Last House Guest”. Letters mark the objects; the key is below. A thick blue edge marks a window.
Rooms
Living Room — 39 tiles: Plant, Chair, Table
Dining Room — 9 tiles: Chair, Plant
Hallway — 6 tiles
Library — 18 tiles: Chair, Shelf
Pantry — 9 tiles: Shelf, Plant
Objects on the board
C Chair (can be stood on)
T Table (blocks the tile)
P Plant (blocks the tile)
S Shelf (blocks the tile)
The Suspects and Their Clues
Each suspect comes with what the witnesses remember. Read them all before placing anyone — a clue about one person is very often what pins down another.
Apo — a man
He was in the Living Room and he was east of Ella and he was south of Björn
Björn — a man
He was beside a plant. Another suspect was beside the same plant.
Clara — a woman
She was beside a plant
Diana — a woman
She was the only person on a chair
Ella — a woman
She was beside a wall
Franz — a man
He was beside a plant and he was south of Apo
Guido — a man
He was south-west of Ella
Heinz — a man
He was north of Diana
The victim, Ozzy, is a man. Nothing else about them is known, and no clue depends on it.
Clues About the Whole Scene
No room was empty.
How Hard It Really Is
Deduction steps from the first clue to the verdict
Before anything else, count where each suspect could be if you only read their own clues:
Apo: 25 possible tiles
Björn: 14 possible tiles
Clara: 14 possible tiles
Diana: 10 possible tiles
Ella: 41 possible tiles
Franz: 14 possible tiles
Guido: 59 possible tiles
Heinz: 59 possible tiles
The first deductions after that, in the order the solver finds them:
Apo is east of Ella – impossible cells removed.
Apo is south of Björn – impossible cells removed.
Franz is south of Apo – impossible cells removed.
That is as far as this page goes. From here on it is yours — the in-game hint giver explains each next step if you get stuck, without giving the answer away.
This case has exactly one solution, and it can be reached by forward deduction alone — no guessing.