Satoru Sakaguchi
Satoru Sakaguchi is a Japanese professional shogi player ranked 6-dan.
Shogi professional
Promotion history
Sakaguchi's promotion history is as follows:- 6-kyū: 1991
- 1-dan: 1996
- 4-dan: October 1, 2004
- 5-dan: December 8, 2009
- 6-dan: July 19, 2018