[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.13"]
[Round "2"]
[White "Ivkov, Borislav"]
[Black "Najdorf, Miguel"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6 11. b3 Bf6 12. Bb2 Qe7 13. Qd2 Nc6 14. d5 exd5 15. Bxf6 Qxf6 16. Qxd5 Rad8 17. Qg5 Qe7 18. Rd2 h6 19. Qh5 Na5 20. Rad1 Rfe8 21. Ne1 Bxg2 22. Nxg2 Nc6 23. Nf4 Qe5 24. e3 Qe7 25. Nd5 Qd7 26. Nc3 Re6 27. Nd5 Re5 28. Qf3 Ree8 29. Qg2 Ne5 30. Kh1 f5 31. Nc3 Nf7 32. Nb5 a6 33. Nc3 b5 34. Qf1 b4 35. Nd5 a5 36. Qg2 Re4 37. h3 Rde8 38. Ra1 Qd8 39. a4 Kh8 40. Qf3 Qd7 41. Rad1 Kg8 42. Rg1 Ng5 43. Qg2 Nf7 44. Re2 Kh7 45. f4 Nd8 46. g4 fxg4 47. Qxg4 Qxg4 48. Rxg4 Ne6 49. Reg2 Rf8 50. Rg6 Rf7 51. R2g3 Kh8 52. Kg2 Kh7 53. h4 Rf5 54. Kf3 Ree5 55. Ke2 Rxf4 56. Rxe6 Rxh4 57. Reg6 Re7 58. Nxe7 1-0