Klaus Sieberg
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Ruhrgebiet VK3 0405 | 09/12/2004 | 1879 |  Germany |
Klaus Sieberg Repertoire with White pieces (most played)
| ECO | Opening | Games |
| B50 | Sicilian | 1 games |
| B02 | Alekhine's defence | 1 games |
| B45 | Sicilian, Taimanov variation | 1 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
Klaus Sieberg Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| E44 | Nimzo-Indian, Fischer variation, 5.Ne2 | 1 games |
| A48 | King's Indian, East Indian defence | 1 games |
| A31 | English, symmetrical, Benoni formation | 1 games |
| E61 | King's Indian defence, 3.Nc3 | 1 games |
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