Answers to the task of guessing the color of the Collapsed Star Dome Railway
1. The sixth problem of the Ministry of Education
The little girl Hook is playing the "guess the suit" game with her friends.
She found Julian, Luca and the eldest sister who always played with them, and put a paper flower on each of their heads. There are four paper flowers in total, two are white and two are purple. No one, including Hook, peeked at the colors of the paper flowers on their own heads and those of others.
Then she asked everyone to stand forward in a row. Starting from the beginning are Hook, Julian, Luca and Big Sister. Everyone can only face forward and look at the person in front of them, but they are not allowed to look back or peek at the paper flowers on their heads.
To be fair, Hook also blindfolded his eldest sister because she was too tall! However, although they couldn't see it, we saw it at a glance when we passed by: Hook and Luca had white flowers on their heads, while Julian and the eldest sister had purple flowers on their heads.
Although Hook strives for fairness, only one person in this game is destined to guess the color of the paper flower on his head. Who is that person?
2. Problem-solving ideas
Consider it in a row first: Hook<—Urian<—Luca<—Big Sister
It is known that Hook and Big Sister must not know their own colors. One cannot see them, and there is no one in front of them, so they cannot get any clues.
Assuming that Luka sees the same color, he can guess the color of the paper flowers on his head; if Luka sees white and purple, he cannot infer the color of the paper flowers on his head.
Julian found that Luca could not infer, which meant that the colors Luca saw were different. Yulian could judge the color of the paper flowers on his head based on the color of the paper flowers on Hook's head.
Answer: Julian
3. Other answers to the Ministry of Education’s difficult questions
*Question: As many Puzzle 1: 14 cars Puzzle 2: 162 Puzzle 3: Eric Puzzle 4: Philip Puzzle 5: 6 Puzzle 6: Julian Puzzle 7: Open the Golden Gate Puzzle 8: Day 29