[Event "Reggio Emilia-13 1970/71"]
[Site "Reggio Emilia"]
[Date "1970.12.30"]
[Round "5"]
[White "Masera, Umberto"]
[Black "Benko, Pal C"]
[Result "0-1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. b3 bxc4 5. bxc4 d6 6. Nc3 g6 7. Bb2 Bg7 8. f3 Nbd7 9. e4 Rb8 10. Qc2 Qa5 11. Kf2 Nxe4+ 12. fxe4 Rxb2 13. Qxb2 Bxc3 14. Qc1 Nf6 15. Nf3 Nxe4+ 16. Ke3 Bxa1 17. Qxa1 Nf6 18. Bd3 O-O 19. h3 Ba6 20. Rb1 e5 21. dxe6 fxe6 22. Rb3 Qc7 23. Ra3 Bc8 24. Qb2 d5 25. Qe5 Ng4+ 0-1