Book (Practical) Mathematics "Mathematics" quiz : Mastering intuition and thinking skills

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Mathematics
The Bluebucks / ・ 128 team tournament. How many games do you have if there is no draw? ・ How can I measure the diameter of a soccer ball with a ruler? ・ Why are there two and three seats on the Shinkansen between the aisles? There is always "mathematics" behind what you see casually! While challenging the quiz style masterpiece problem, it explains in detail the mathematical thought hidden behind it. I will teach you the secrets of mathematics! Frobenius's coin problem, Fermi estimation, Pigeon's nest principle, Euclid's 『 theory 』, Euler graph, the longest one way ticket problem, three ancient drawing problems. Paradox and drawing problems that bothered many great mathematicians from all over the world. Take a trip to the world of mathematics with your very popular brother who specializes in mathematics, based on the addictive "mathematics quiz" that you can't stop thinking about!