H. Catozzi
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Hastings-B 6364 | 12/??/1963 | 0 | United Kingdom |
| Munich ol (Men) fin-B | 09/30/1958 | 0 | Germany |
| Munich ol (Men) prel | 09/30/1958 | 0 | Germany |
| Dublin zt | ??/??/1957 | 0 | Ireland |
Most Played Openings as White
| ECO | Opening | Games |
| A60 | Benoni defence | 2 games |
| E72 | King's Indian with e4 & g3 | 2 games |
| E61 | King's Indian defence, 3.Nc3 | 2 games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| E59 | Nimzo-Indian, 4.e3, main line | 4 games |
| C77 | Ruy Lopez, Morphy defence | 3 games |
| E16 | Queen's Indian, Capablanca variation | 3 games |
| C29 | Vienna gambit | 1 games |


United Kingdom
Germany
Ireland