[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.09.02"]
[Round "16"]
[White "Bronstein, David Ionovich"]
[Black "De Greif, Boris"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O g6 7. d4 Bg7 8. dxe5 dxe5 9. Bg5 Nge7 10. Qd3 h6 11. Be3 Be6 12. Qe2 O-O 13. Bc5 b5 14. Bb3 Bxb3 15. axb3 Qc8 16. Nbd2 Rd8 17. b4 Qe6 18. Ra3 Nc8 19. Rfa1 Nb8 20. c4 c6 21. h3 Bf8 22. Bxf8 Kxf8 23. cxb5 cxb5 24. Nb3 Ne7 25. Nc5 Qf6 26. Rd1 Nec6 27. Rxd8+ Qxd8 28. Rd3 Qe7 29. Qd2 Kg7 30. Rd5 a5 31. bxa5 Rxa5 32. b4 Ra1+ 33. Kh2 Ra7 34. Qc3 f6 35. Qd2 Kh7 36. Qc3 Rc7 37. g3 Ra7 38. g4 Rc7 39. h4 g5 40. Kg3 Ra7 41. Rd1 Nd7 42. hxg5 Nxc5 43. g6+ Kxg6 44. bxc5 Rc7 45. Rd5 Kh7 46. Qd2 Qg7 47. Rd6 Ne7 48. Qa5 Rxc5 49. Qd8 Rc8 50. Qd7 Rc3 51. Kg2 Rc6 52. Rxc6 Nxc6 53. Qf5+ Kh8 54. Qc8+ Kh7 55. Qf5+ Kh8 1/2-1/2