FILE No.112Unsolved
At about 2 p.m. in an apartment building, the building manager was killed. The letter "S" was written at the scene. The manager always had a habit of jotting down residents' room numbers, and this mark too was an attempt to write a room number. The first curve of the "S" is the same shape the manager used when starting to write the digit "8", and other pages of the manager's notebook show the same shape in unfinished writing. What the manager was trying to write was the culprit's room number.
Those without alibis are Mr. Hashiya, Mr. Kiriya, and Mr. Wakatsuki. The police said, "It's S, so it's Saito," but Mr. Saito has an alibi.
Which room is the culprit's?
If you get stuck, open the hints one at a time, in order.
What was the manager trying to write?
What does "S" look like as a digit?
Remove those who have alibis.
Which room is the culprit's?
Choose the answer closest to the truth.
Room 815, Mr. Wakatsuki
The answer is "Room 815, Mr. Wakatsuki."
The manager was trying to write a room number. The "S" matches the shape of the digit "8" partway through writing (its first curve). Of the rooms containing an 8, the one whose resident has no alibi is Room 815, Mr. Wakatsuki.
Mr. Saito lives in Room 608, but he has an alibi. Rooms 201 and 410 contain no 8.
Because you assume "S" is the initial of a name.
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