3×3の魔方陣が1種類しか存在しないことの証明

This time, I'll explain the mathematics of magic squares, a familiar mathematical puzzle. Along the way, I'll also discuss combinatorial explosions. Combinatorial Explosion Video (from Miraikan, the National Museum of Emerging Science and Innovation) ↓    • 『フカシギの数え方』 おねえさんといっしょ！ みんなで数えてみよう！   ---------------------------------------------------------------------------------------------------------------- For those who want to learn more about the mathematics of magic squares ↓ "Magic Squares -- Circles, Stars, Dice Magic Squares, 3D Magic Squares..." https://amzn.to/2F5X3fa →Explains various shapes of magic squares "The Magic of Geometry: From Magic Squares to Modern Mathematics" https://amzn.to/2D507p6 →Explains the relationship with affine geometry and projective geometry ---------------------------------------------------------------------------------------------------------------- On the "University Mathematics and Physics" channel, where you can learn in a cram school atmosphere: ① University Course: University-level Science Subjects ② High School Course: Exam-Level Science Subjects We upload video lessons and provide other information for high school and university science students. For business inquiries, please contact us through our website. For collaboration requests, please contact us through our website. For lecture requests, please post in the comments section of any video. Subscribe to our channel here (Let's continue enjoying our classes!)    / @yobinori   For our official website, please find the lecture you're looking for! http://yobinori.jp/ For Twitter, please visit us (We're actively working!)   / yobinori   For Instagram, please visit us (See Takumi's daily life(?))   / yobinori   Click here for [note] (I write serious articles) Takumi (Instructor) → https://note.mu/yobinori Yasu (Editor) → https://note.mu/yasu_yobinori [Quote of the Day] It's not a "magic circle" but a "magic square"! I was confused at first too! Lol