関西棋院
The tournament is open to Nihon Ki-in and Kansai Ki-in players. A nine-player league decides the challenger each year. Every year, the three worst-ranked players in the league drop out. Entrance into the league is decided by three preliminaries. The first is between 1-4 dans (6 winners: 4 Nihon ki-in and 2 Kansai ki-in). The second is between 5-9 dans and the six winners (18 winners). The third is between these 18 and the 3 people dropped from the league (3 winners, who enter the league). Komi is 6.5. The time limit is 8 hours each in the title matches and 3 hours in the league and prelims. Byo-yomi is 1 minute per move.