Book (Practical) Hobbies and trivia Yoshiharu Hanyu's actual battle Tsume Shogi (Japanese chess) battle Mastering safety goggles : The 100 Most Difficult Problems
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: 単行本(実用) 諸芸・娯楽 羽生善治の実戦詰将棋 戦術眼を極める超難問100選