
A wealthy old man died, and his four grandchildren gathered at the mansion. The will said:
"I leave all my property to the grandchild I last spoke with."
The four grandchildren each said:
Satoshi: I spoke with him by phone at 7 p.m.
Midori: I met him and spoke with him in person at 8:30 p.m.
Hiroshi: I visited his room at 9 p.m., but he did not answer when I called.
Waka: I visited at 10 p.m. and he said, "I’m going to sleep now."
The doctor found that the old man had died before 8:45 p.m. Also, the phone records show a message left from the old man to Satoshi’s voicemail at 8:40 p.m.: "Satoshi, I leave the rest to you."
No other conversation that day has been confirmed besides the four accounts and the records.
Which grandchild satisfies the condition of the will?
If you get stuck, open the hints one at a time, in order.
The latest account is not necessarily correct.
How do you treat an account later than the time of death?
Is a voicemail a record of exchanging words on the spot?
Which grandchild satisfies the condition of the will?
Choose the answer closest to the truth.
Midori
The answer is “Midori.”
The message left at 8:40 p.m. was a voicemail to Satoshi. It records the old man speaking toward him, not a conversation in which they exchanged words at that time. Hiroshi at 9 p.m. heard no reply, and Waka’s account at 10 p.m. contradicts the time the doctor confirmed. So the last two-way conversation that can be confirmed is the one with Midori at 8:30 p.m. In this puzzle, “spoke” is taken to mean exchanging words with each other.
After choosing the latest visit, you mistake the 8:40 recording for the “last conversation.”
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