M. Posthumus
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Glorney Cup | 07/29/1970 | 0 |  Scotland |
M. Posthumus Repertoire with White pieces (most played)
| ECO | Opening | Games |
| E37 | Nimzo-Indian, classical, Noa variation, main line, 7.Qc2 | 1 games |
| D69 | Queen's Gambit Declined, Orthodox defence, classical, 13.de | 1 games |
| B09 | Pirc, Austrian attack | 1 games |
M. Posthumus Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| C44 | King's pawn game | 1 games |
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