Osamu Katsuhara
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Donau op 14th | 12/26/2005 | 2152 | Austria |
| Budapest FS09 FM-A | 09/03/2005 | 2099 | Hungary |
| Budapest FS07 FM | 07/02/2005 | 2170 | Hungary |
| Budapest FS06 IM | 06/04/2005 | 2247 | Hungary |
Most Played Openings as White
| ECO | Opening | Games |
| B33 | Sicilian defence | 4 games |
| B01 | Scandinavian (centre counter) defence | 4 games |
| B78 | Sicilian, dragon, Yugoslav attack, 10.O-O-O | 3 games |
| B90 | Sicilian, Najdorf | 3 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B80 | Sicilian, Scheveningen variation | 5 games |
| D85 | Gruenfeld, exchange variation | 3 games |
| D87 | Gruenfeld, exchange, Spassky variation | 3 games |
| B85 | Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6 | 3 games |
Japan
Male
FIDE ID:

Austria
Hungary