Willy Pettersson
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Stockholm 4647 | ??/??/1946 | 0 |  Sweden |
| SWE-ch | ??/??/1938 | 0 | Sweden |
Most Played Openings as White
| ECO | Opening | Games |
| D20 | Queen's gambit accepted | 1 games |
| C12 | French, MacCutcheon variation | 1 games |
| D17 | Queen's Gambit Declined Slav, Czech defence | 1 games |
| D28 | Queen's Gambit Accepted, classical, 7.Qe2 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A95 | Dutch, stonewall with Nc3 | 1 games |
| A83 | Dutch, Staunton gambit, Staunton's line | 1 games |
| C18 | French, Winawer, advance variation | 1 games |
| D05 | Queen's pawn game | 1 games |
