[Event "Istanbul Balkaniad"]
[Site "Istanbul TUR"]
[Date "1975.10.15"]
[EventDate "1975.10.11"]
[Round "4"]
[Result "1-0"]
[White "Luben Popov"]
[Black "Ates Ulker"]
[ECO "A56"]
[WhiteElo "2460"]
[BlackElo "?"]
[Source "Perpetual Check"]
[PlyCount "88"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Be2 O-O 7. Nf3 Ne8 8. O-O g6
9. Ne1 Bg5 10. Nd3 Nd7 11. a3 a6 12. b4 b6 13. Bxg5 Qxg5 14. Rb1 Ng7 15. bxc5
bxc5 16. Qa4 Rb8 17. Rxb8 Nxb8 18. Rb1 Bh3 19. Ne1 h5 20. Qc2 h4 21. Qc1 Qxc1
22. Rxc1 Bd7 23. Rb1 Rd8 24. Rb6 Ne8 25. h3 f6 26. Nf3 g5 27. Nd2 Kf8 28. Nb3
Ke7 29. Na5 Rc8 30. Bh5 Nc7 31. Nd1 Rh8 32. Bf3 Na8 33. Rb7 Rc8 34. Ne3 Nc7 35.
Bh5 Kd8 36. Bg6 Be8 37. Bh7 Bd7 38. Nf5 Bxf5 39. Bxf5 Nd7 40. Nc6+ Ke8 41. Na7
Kd8 42. Nc6+ Ke8 43. Bg6+ Kf8 44. Na7 Ra8 1-0