Hikaru no Go.
The main character, Hikaru, comes upon a goban (a board that Go, an ancient Chinese board game, is played on) and it turns out to have the spirit of a man who played Go over 1000 years ago, and didn't pass on because he wanted to keep playing Go. Later, Hikaru starts playing Go himself until he becomes a professional, trying to surpass his rival, Akira Touya.
Okay, that doesn't sound that exciting, but when I read the manga I thought it was really good. Apparently it even caused a spurt in the popularity of the game at the time.