Abstract

QuizKnock's latest quiz book! The popular quiz app "Daitai Line" has finally been published as a book! Question: How many hits has Ichiro hit in professional baseball official games in Japan and the US? All the answers are numbers. This is a new type of quiz book where you can get points if you "approximately" guess the answer. There are 300 questions in total, and various genres such as "entertainment", "life", and "sports" are included. The difficulty is divided into four levels from easy to ultra, so it can be enjoyed by children and adults alike. In addition, it also includes columns by QuizKnock members talking about "how to remember numbers" and "how to solve approximate value problems", as well as the behind-the-scenes story of the production of the quiz app "Daitai Line"! This book can be enjoyed by both those who already know "Daitai Line" and those who are new to it.

Author’s Information

QuizKnock is a media outlet that combines entertainment and knowledge, run by quiz king Takuya Izawa. Based on the concept of "learning starts with fun," the site publishes articles and videos every day that will serve as an opportunity to "learn" something. The number of YouTube channel subscribers has exceeded 2.44 million. (As of June 2025)