[Event "Nimzowitsch Memorial"]
[Site "Copenhagen DEN"]
[Date "1960.08.21"]
[EventDate "1960.08.07"]
[Round "12"]
[Result "1-0"]
[White "Tigran Vartanovich Petrosian"]
[Black "Gideon Stahlberg"]
[ECO "D03"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "85"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 Nbd7 4. c4 Ne4 5. Bh4 dxc4 6. Qc2
Nd6 7. e4 Nb6 8. Nbd2 c6 9. a4 a5 10. Nxc4 g6 11. Nxb6 Qxb6
12. Bd3 Qb4+ 13. Qc3 Bg7 14. O-O Be6 15. Rfe1 h6 16. Bc2 g5
17. Bg3 Nc4 18. Reb1 Rd8 19. h3 c5 20. Qxb4 axb4 21. d5 Bd7
22. e5 g4 23. hxg4 Bxg4 24. Bd3 Na5 25. Bb5+ Kf8 26. d6 Bxf3
27. gxf3 exd6 28. Bh4 Ra8 29. exd6 Be5 30. Be7+ Kg7 31. Kh1 f5
32. d7 b6 33. f4 Bd4 34. Bh4 Bf6 35. Rg1+ Kf7 36. Bxf6 Kxf6
37. Rad1 Nb3 38. Rd6+ Ke7 39. Rxb6 Nd4 40. Bc4 Kxd7 41. Rg7+
Kc8 42. Ba6+ Kd8 43. Bb7 1-0