| Tournament name |
Oza Title |
| Sponsor |
The Nihon Keizai Newspaper , The Nihon Ki-in , The Kansai Ki-in |
| Support |
- |
| Special assistance |
- |
| Assistance |
- |
| Special cooperation |
- |
| Cooperation |
- |
| Winner's prize |
14,000,000 (Japanese yen) |
| Title match, play-off |
best-of-five title match |
| Tournament system |
Tournament with 16 players. Winner plays in title match. |
| Time allowance |
Final, main tournament: 3 hours each. |
| Byo-yomi |
Title match, main tournament: 5 minutes before end of time. |
| Komi |
6.5 |
| Qualification for participation |
All professionals. |
| Rules for retaining places and seeds |
Two players who played in the previous play-off, titleholders |
| Year of founding |
1952 |