The Challengers
Hikaru and Tsubaki must face each other in the Pro matches, and Akira begins teaching Ochi in an attempt to learn how strong of a level Hikaru is playing at.
Aired 03/07/2002EP 38 - The Challengers

2001
Hikaru no Go
With a two-tone hairstyle and a streak of immaturity, Hikaru Shindou finds an old Go board with a hidden surprise - trapped within the Go Board is Fujiwara-no-Sai, the ghost of an ancient Go master! In the blink of an eye, Sai becomes part of Hikaru's consciousness and soon begins to learn the true essence behind this ancient game of skill and strategy.
(Source: VIZ Media)