[Event "Kamen Piskov Memorial"]
[Site "Ruse BUL"]
[Date "1984.06.??"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Andrzej Sydor"]
[Black "Miklos Orso"]
[ECO "D52"]
[WhiteElo "2395"]
[BlackElo "2390"]
[PlyCount "24"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Bb4 7. Qc2 Qa5 8. Nd2  dxc4 9. Bxf6 Nxf6 10. Nxc4 Qd8 11. Be2 O-O 12. O-O Nd5 1/2-1/2