Oza

The Oza ("Throne") is one of the older titles in Japanese professional Go, originating in 1953 and sponsored by the Nihon Keizai Shimbun (Nikkei), Japan's leading financial newspaper. The format features a single-elimination preliminary whose winner challenges the defending Oza in a best-of-five title match, with a winner's prize of approximately 14 million yen. Kato Masao holds the record with eight consecutive titles (1982-1989), earning him the rank of Honorary Oza. The title gained historic significance in 1994 when Cho Chikun captured the Oza to become the first player ever to have held all seven major Japanese titles.

Land Japan Typ Title Match Format Knockout Title Zyklus 1 J. Komi 6.5 Ausgaben 75

1987 · Ausgabe #35

Champion: Kato Masao · Zweiter: Cho Chikun

Final 4 Partien

10. Sept. Kato Masao B+R Cho Chikun 25. Sept. Cho Chikun W+R Kato Masao 15. Okt. Kato Masao W+R Cho Chikun 4. Nov. Cho Chikun W+R Kato Masao

Challengers' Final 1 Partie

27. Aug. Cho Chikun B+R Rin Kaiho

Semi-final 2 Partien

23. Juli Cho Chikun B+R O Rissei 30. Juli Fujisawa Hideyuki W+0.5 Rin Kaiho

Quarter-final 4 Partien

4. Juni O Rissei B+21.5 Hashimoto Shoji 11. Juni Cho Chikun B+R Takemiya Masaki 18. Juni Kobayashi Koichi W+0.5 Fujisawa Hideyuki 25. Juni Oya Koichi W+4.5 Rin Kaiho

Round of 16 8 Partien

12. März Kawamura Masamichi W+R Takemiya Masaki 19. März Kudo Norio W+R O Rissei 26. März Oya Koichi B+3.5 Sonoda Yuichi 9. Apr. Ishida Akira W+R Rin Kaiho 16. Apr. Kanda Ei W+3.5 Hashimoto Shoji 23. Apr. Sakai Takeshi W+R Fujisawa Hideyuki 14. Mai Iwata Tatsuaki W+4.5 Kobayashi Koichi 21. Mai Yamashiro Hiroshi W+1.5 Cho Chikun

Preliminaries 1 Partie

22. Okt. Takahara Shuji W+2.5 Koyama Yasuo

3rd Preliminary 5 Partien

20. Nov. Hashimoto Shoji B+7.5 Ishida Yoshio 11. Dez. Inagaki Koichi W+R Fujisawa Hideyuki 5. Jan. Kawamura Masamichi B+0.5 O Meien 15. Jan. O Rissei B+R Miyazawa Goro 12. Feb. Ishida Akira B+11.5 Hashimoto Utaro

1st Preliminary 1 Partie

21. Mai Hamanaka Takamitsu B+1.5 Ueki Yoshio