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Case 4: who took the Giant Pearl?
During the night rounds at the aquarium, a guard raised the alarm: the Giant Pearl, which should be in the Tank Room, is missing. Everything points to the thief still being among those present. Help the police unmask them.
The board
- 1Café
- 2Gift Shop
- 3Laboratory
- 4Terrace
- 5Tank Room
- Plant: no character can stand on its cell, but the stolen item can be there.
- Seat: anyone can be on it.
- Table: nothing can be on its cell.
- Screen: nothing can be on its cell.
- Window: the blue line on a wall.
Suspects and clues
- CChidi
He's next to a window. - FFarah
She's in row 4. - HHana
She's in column C. - AAmara
She's 2 columns away from the Gift Shop. - NNadia
She's in the Café. - GGiant Pearl (stolen item)
It's 4 rows away from the Terrace.
Remember the rules: no two suspects (nor the item) ever share a row or a column, each character is in a different room, and the thief is the only one sharing a room with the stolen item. Unsure? Read how to play and the clue types.
Solution
Try it yourself first: pen and paper are enough. When you want to check, open the reasoned solution.
Show the step-by-step solution
- Chidi's clue: He's next to a window. 3 cells remain possible: A2, F2 and A5.
- Farah's clue: She's in row 4. 2 cells remain possible: E4 and F4.
- Hana's clue: She's in column C. 3 cells remain possible: C3, C5 and C6.
- Amara's clue: She's 2 columns away from the Gift Shop. It leaves a single cell: B2.
- Nadia's clue: She's in the Café. 2 cells remain possible: D5 and D6.
- The stolen item's clue: It's 4 rows away from the Terrace. It leaves a single cell: E1.
- Amara can only be on B2. No one else can be in row 2 or column B, and no other character can be in the Tank Room.
- A2 and F2 have already been ruled out, so Chidi can only be on A5. No one else can be in row 5 or column A, and no other character can be in the Laboratory.
- C5 and C6 have already been ruled out, so Hana can only be on C3. No one else can be in row 3 or column C, and no other character can be in the Gift Shop.
- E4 has already been ruled out, so Farah can only be on F4.
- D5 has already been ruled out, so Nadia can only be on D6.
- The Giant Pearl can only be on E1.
Conclusion: Hana is the only person sharing the Gift Shop with the Giant Pearl, which is on E1. She is the thief.