Gerard Kroone
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| The Hague ol (Men) | 07/23/1928 | 0 |  Netherlands |
| London ol (Men) | 07/18/1927 | 0 |  United Kingdom |
| NED-ch06 | 07/??/1926 | 0 | Netherlands |
| NED-BEL m | ??/??/1925 | 0 | Netherlands |
Gerard Kroone Repertoire with White pieces (most played)
| ECO | Opening | Games |
| C83 | Ruy Lopez, open, classical defence | 4 games |
| C68 | Ruy Lopez, exchange variation | 2 games |
| C63 | Ruy Lopez, Schliemann defence | 1 games |
| C29 | Vienna gambit | 1 games |
Gerard Kroone Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| C56 | Two knights defence | 3 games |
| D34 | Queen's Gambit Declined, Tarrasch, Prague variation, 7...Be7 | 2 games |
| C54 | Giuoco Piano | 1 games |
| B45 | Sicilian, Taimanov variation | 1 games |
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