[Event "URS-ch48 Semifinal"]
[Site "Tallinn"]
[Date "1980.08.??"]
[Round "?"]
[White "Petrosian, Arshak B"]
[Black "Chiburdanidze, Maia"]
[Result "1-0"]
[WhiteElo "2435"]
[BlackElo "2400"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nbd7 7. f4 e5 8. dxe5 dxe5 9. Nf3 Qe7 10. Nd5 Nxd5 11. Bxe7 Nxe7 12. Qd2 Nc6 13. O-O exf4 14. Qxf4 Bxb2 15. Ng5 f6 16. Ne6 Rf7 17. Rad1 Be5 18. Qe3 Re7 19. Nf4 b6 20. Nd5 Rf7 21. Bg4 Nc5 22. Bxc8 Rxc8 23. Qh3 Re8 24. Qh4 Kg7 25. Kh1 a5 26. Ne3 h5 27. Nd5 Nb4 28. Rd2 c6 29. Ne3 Bc3 30. Rdd1 Rxe4 31. Nf5+ Kh7 32. Qh3 Be5 33. Nd6 Bxd6 34. Rxd6 Re8 35. Qh4 Ne4 36. Rd4 Nc5 37. h3 Kg7 38. Rfd1 Nc2 39. Rd8 Rxd8 40. Rxd8 Ne3 41. Qg3 Nxc4 42. Qb8 f5 43. Rg8+ Kh7 44. Rh8+ Kg7 45. Qg8+ Kf6 46. Qd8+ Ke5 47. Re8+ Ne6 48. Qc8 Rf6 49. Qxc6 Nd6 50. Re7 1-0