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The Okan (Japanese: 王冠, Hepburn: Ōkan, 'crown' or 'king's crown') is a Japanese Go competition. It is open only to players of the Nihon Ki-in's Chubu branch located in Nagoya. The title match is a single game played between the reigning titleholder and a challenger. The winner's purse is 1,700,000 yen ($15,000).

Winners and runners-up

References

1. "王冠戦　歴代記録", Nihon Ki-in (in Japanese), retrieved 2024-12-03
2. "The Power Report: Iyama regains Oza title; The Teikei tournaments; Ueno wins Young Carp; Ida sets record in Crown title", American Go E-Journal, 2022-01-29, archived from the original on 2022-07-01

• Go competitions in Japan