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The Convenience Store Thief (illustration)
FILE No.132Unsolved

The Convenience Store Thief

Difficulty ★★☆about 5 minEveryday MysteryFresh thinkingRuling out
Neither cash nor goods were taken. What did the thief carry off in bulk?

Case Record

A thief broke into a convenience store in Tokyo. But this thief touched neither the cash, nor the goods, nor the store's fixtures and equipment. The thief did not abduct anyone either.

What the thief carried off in large quantity was something the store throws away as trash every day: paper that comes out by the hundreds each day around the register. On that paper is printed what each customer bought.

Your question

What did the thief take?

Case Files

Diagram

A thief in a Tokyo convenience storeItemStatusCash and goodsUntouchedFittings andequipmentUntouchedPeopleNobody takenTakenPaper the shop throws away daily, hundreds aday, printed with what customers bought
Diagram

Hints

If you get stuck, open the hints one at a time, in order.

Open hint 1

What paper is thrown away in large quantity every day?

Open hint 2

What paper has what the customer bought printed on it?

Open hint 3

Exclude fixtures and equipment.

Solve It

Your question

What did the thief take?

Choose the answer closest to the truth.

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The Truth

Receipts

The answer is "Receipts."

The paper the store throws away every day with the customer's purchases printed on it is the receipt. Perhaps someone wanted the information on receipts, or the coupons printed on them.

Point cards are not something the store throws away. Security camera recordings are equipment, and employee uniforms are fixtures; both are among the things not touched.

What fits all the conditionsCandidateFits?Loyalty cardNo: not thrown away by the shopCamera recordingNo: equipmentReceiptsYes: discarded daily, lists purchasesUniformsNo: store fittings
Diagram of the solution

Key Points

  • Narrow down to what fits the conditions
  • Even "trash" for a store can have value
  • Rule out fixtures and equipment

Why people get fooled

Because you assume a thief steals things of value.

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