Walter Koeferli
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| SUI-ch Seniors | 07/10/2003 | 1842 |  Switzerland |
| SUI-ch Seniors | ??/??/2001 | 518 | Switzerland |
| Pontresina op Seniors | 07/13/2000 | 103 | Switzerland |
| Weihnachts op-B 23th | 12/26/1999 | 112 | Switzerland |
Walter Koeferli Repertoire with White pieces (most played)
| ECO | Opening | Games |
| B21 | Sicilian, Grand Prix attack | 3 games |
| C01 | French, exchange variation | 1 games |
| C17 | French, Winawer, advance variation | 1 games |
| C18 | French, Winawer, advance variation | 1 games |
Walter Koeferli Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| C02 | French, advance variation | 2 games |
| A52 | Budapest defence | 2 games |
| A16 | English opening | 1 games |
| A22 | English opening | 1 games |
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