[Event "Bucharest Int 12th"]
[Site "Bucharest"]
[Date "1973.03.07"]
[Round "1"]
[White "Knaak, Rainer"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bb5+ c6 8. Bc4 b5 9. Bb3 b4 10. Bb2 Na6 11. Ne2 O-O 12. O-O c5 13. Rc1 Bb7 14. d5 Rc8 15. Bc4 Qb6 16. Nf4 Nb8 17. Qe2 Ba6 18. Rc2 Bxc4 19. Qxc4 Qa6 20. Qxa6 Nxa6 21. Rfc1 Bh6 22. g3 Rb8 23. cxb4 Nxb4 24. Rd2 Rfc8 25. Be5 Rb5 26. a3 Na6 27. d6 exd6 28. Rxd6 c4 29. Bf6 Rb6 30. Rcd1 Rxd6 31. Rxd6 Nc5 32. f3 Bxf4 33. gxf4 Ne6 34. f5 Nf4 35. Kf1 c3 36. Bg5 c2 37. Bxf4 c1=Q+ 38. Bxc1 Rxc1+ 39. Kf2 gxf5 40. exf5 Rc5 41. f6 h6 42. Ra6 Rf5 43. a4 Kh7 44. Rxa7 Kg6 45. Rb7 Rh5 46. Kg3 Rg5+ 47. Kf2 Rh5 48. Kg2 Rh4 49. a5 Ra4 50. Rb5 Kxf6 51. Kg3 Kg6 52. h4 h5 53. Rb6+ f6 54. a6 Kf5 55. Rd6 Ra2 56. Rc6 Ra4 57. Rb6 Ra2 58. Rd6 1/2-1/2