Farewell Hikaru
Hikaru continuously ignores Sai's worries of his leaving and ends up allowing Sai to engage a drunk Ogata in a Go match. The next day, Sai begs Hikaru for a game, but something happens during the game that will change Hikaru's life
Aired 04/12/2002EP 60 - Farewell Hikaru

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)