小畑健
is a Japanese manga series based on the board game Go, written by Yumi Hotta and illustrated by Takeshi Obata. The production of the series' Go games was supervised by Go professional Yukari Umezawa. It was serialized in Shueisha's "Weekly Shōnen Jump" from 1999 to 2003, with its chapters collected into 23 "tankōbon" volumes.