Francke Kalkman de Koster
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Bygger'n Masters | 09/24/2006 | 1889 |  Norway |
| Haarlem Nova College op | 07/07/2006 | 1969 |  Netherlands |
| Gausdal Elo op | 04/23/2006 | 1852 | Norway |
Francke Kalkman de Koster Opening Repertoire with White pieces
| ECO | Opening | Games |
| E90 | King's Indian, 5.Nf3 | 2 games |
| D43 | Queen's Gambit Declined semi-Slav | 1 games |
| D09 | Queen's Gambit Declined, Albin counter-gambit, 5.g3 | 1 games |
| E34 | Nimzo-Indian, classical, Noa variation | 1 games |
Francke Kalkman de Koster Opening Repertoire with Black pieces
| ECO | Opening | Games |
| A08 | Reti, King's Indian attack | 1 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
| B20 | Sicilian defence | 1 games |
| B33 | Sicilian defence | 1 games |
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