I have all the notes from the board. I am also selling other Toshin texts, so I can offer a discount for combined purchases. Feel free to comment. Instant purchase is okay. Those aiming for Todai, Osaka University, Tohoku University, medical school, Nagoya University, Kyushu University, Hokkaido University, etc., please take a look. Also for those using Sundai, Kawaijuku, summer courses, winter courses, and "The Essence of Mathematics."