[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.06.10"]
[Round "16"]
[White "Rossetto, Hector"]
[Black "Darga, Klaus"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bd2 Bb7 11. Qc2 c5 12. O-O Rc8 13. Qd3 cxd4 14. Nxd4 Be7 15. e3 O-O 16. Nc3 Nc5 17. Qb1 Nxc3 18. Bxc3 Bxg2 19. Kxg2 Qd5+ 20. f3 Na4 21. Be1 Bf6 22. Bf2 Qc5 23. Rc1 Qxc1 24. Qxc1 Rxc1 25. Rxc1 Nxb2 26. Rc6 Ra8 27. e4 Nd3 28. Nc2 b4 29. f4 Nxf2 30. Kxf2 a5 31. e5 Be7 32. Rc7 Bd8 33. Rb7 h5 34. Nd4 Rc8 35. Ke2 g5 36. f5 exf5 37. Nxf5 Kf8 38. Kd3 Rc3+ 39. Ke4 Rc2 40. Nd6 Bc7 41. Nb5 1/2-1/2