[Event "Sarajevo-06"]
[Site "Sarajevo"]
[Date "1963.04.03"]
[Round "8"]
[White "Ivkov, Borislav"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8 11. Be3 Bf8 12. Nbd2 Bb7 13. d5 Ne7 14. Nh2 Ng6 15. a4 c6 16. dxc6 Bxc6 17. Ng4 Nxg4 18. Qxg4 Qf6 19. Nf1 Nf4 20. Ng3 Qg5 21. Bxf4 exf4 22. Nh5 Rxe4 23. Rxe4 Bxe4 24. Nxf4 Qxg4 25. hxg4 Rb8 26. f3 bxa4 27. Bxa4 Ba8 28. Nd3 Bd5 29. Nb4 Be6 30. Bc2 d5 31. Rxa6 Bxb4 32. cxb4 Kf8 33. Ra4 Bd7 34. b5 Bxb5 35. Rb4 Rc8 36. Bf5 Rc5 37. Kf2 Ke7 38. Ke3 Kd6 39. Kd4 Rc4+ 40. Rxc4 Bxc4 41. Bd3 Bb3 42. Ba6 f6 43. Bb7 g5 44. Ba8 Ke6 45. Bc6 Kd6 46. Bb5 Bd1 47. b4 Bb3 48. Be8 Bc4 49. Bf7 Kc6 50. Be6 Kd6 51. Bf7 Kc6 52. b5+ Kxb5 53. Bxd5 Bf1 54. g3 Be2 55. Ba8 Kb4 56. Bb7 Bd1 1/2-1/2