[Event "Portoroz 1957"]
[Site "Portoroz YUG"]
[Date "1957.09.26"]
[EventDate "1957.09.23"]
[Round "4"]
[Result "1/2-1/2"]
[White "Petar Smederevac"]
[Black "Zdravko Gabrovsek"]
[ECO "B06"]
[WhiteElo "?"]
[BlackElo "?"]
[Source "Perpetual Check"]
[PlyCount "100"]

1. e4 g6 2. f4 Bg7 3. Nf3 d6 4. Nc3 c5 5. g3 Nc6 6. Bg2 Nf6 7. O-O O-O 8. d3
Rb8 9. h3 b5 10. g4 a5 11. Be3 b4 12. Ne2 a4 13. Nd2 Nd7 14. Rb1 Ba6 15. Ng3
Nd4 16. Nc4 Nb5 17. Ne2 Nb6 18. Qd2 Nxc4 19. dxc4 Nd4 20. Bxd4 cxd4 21. b3 e5
22. fxe5 dxe5 23. Nc1 Qh4 24. Nd3 Bh6 25. Qe1 Be3+ 26. Kh1 Qe7 27. Qg3 f6 28.
Bf3 axb3 29. axb3 Bb7 30. Ra1 Bc6 31. Ra6 Bb7 32. Ra7 Ra8 33. Rfa1 Rxa7 34.
Rxa7 Ra8 35. Rxa8+ Bxa8 36. Qe1 f5 37. gxf5 gxf5 38. Nxb4 fxe4 39. Bg2 Qg5 40.
Qa1 Qd8 41. Qa6 Kf7 42. c5 Qh4 43. Qf1+ Bf4 44. c6 Qg3 45. Qg1 Be3 46. Qd1 Bf4
47. Qh5+ Kf8 48. Qf5+ Ke8 49. Qe6+ Kf8 50. Qc8+ Kf7 1/2-1/2