15th Kisei

The 15th Kisei 15th iteration of the Kisei tournament, a tournament in the board game go. It was won by Kobayashi Koichi, the defending champion, and held in Japan in 1991. Kobayashi won 4 games to 3 over Kato Masao in the final.

Tournament

	Round of 16				Quarter-finals				Semi-finals				Final
	Kubo Katsuaki	1
	Kanda Ei	0
					Kubo Katsuaki	0
					Kato Masao	1
	Hane Yasumasa	0
	Kato Masao (Oza)	1
									Kato Masao	1
									Cho Chikun	0
	Yoda Norimoto	0
	Rin Kaiho (Tengen)	1
					Rin Kaiho	0
					Cho Chikun	1
	Cho Chikun (Honinbo)	0
	(automatic berth)	0
													Kobayashi Koichi	4
													Kato Masao	3
	Otake Hideo	0
	(automatic berth)	0
					Otake Hideo	0
					Kobayashi Satoru	1
	Hisajima Kunio	0
	Kobayashi Satoru	1
									Kobayashi Satoru	1
									Takemiya Masaki	0			Third place
	Takemiya Masaki (Judan)	1
	Sonoda Yuichi	0
					Takemiya Masaki	1							Kobayashi Satoru	0
					Fujisawa Hideyuki	0							Lost to Kato	0
	Tokimoto Hajime	0
	Fujisawa Hideyuki	1