J. Schaffer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| US op | ??/??/1949 | 0 | United States |
| US op | ??/??/1946 | 0 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| C98 | Ruy Lopez, closed, Chigorin, 12...Nc6 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| E57 | Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd | 1 games |


United States