[Event "Reggio Emilia-15 1972/73"]
[Site "Reggio Emilia"]
[Date "1972.12.??"]
[Round "?"]
[White "Lengyel, Levente"]
[Black "Popov, Luben"]
[Result "1/2-1/2"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 Be6 7. Be3 Qd7 8. Qd2 Nd4 9. f4 Ne7 10. Nf3 Nxf3+ 11. Bxf3 c6 1/2-1/2