By the way, no description exists in "Koyo Gunkan" that Shingen set up his military base on Chausu-yama Mountain, and therefore, the setting-up of his military base on Chausu-yama Mountain is based on war tales written after "Koyo Gunkan."
なお、『甲陽軍鑑』には信玄が茶臼山に陣取ったという記述はなく、茶臼山布陣はそれ以後の軍記物語によるものである。