1.
c4
Nf6
2.
Nc3
e6
3.
Nf3
d5
4.
d4
Bb4
5.
Qa4+
Nc6
6.
cxd5
exd5
7.
Bg5
h6
8.
Bxf6
Qxf6
9.
e3
O-O
10.
Be2
Rd8
11.
O-O
a6
12.
Rac1
Be6
13.
Ne5
Bxc3
14.
Nxc6
Bd7
15.
Rxc3
Bxc6
16.
Qa5
Qd6
17.
Rfc1
Rd7
18.
Qa3
Qf6
19.
b4
Qd8
20.
Qb3
Bb5
21.
Bf1
Bxf1
22.
Kxf1
c6
23.
a4
Rd6
24.
Rc5
Qh4
25.
Kg1
Rg6
26.
g3
Qe4
27.
Qc2
Qf3
28.
Qd1
Qe4
29.
b5
axb5
30.
axb5
Ra2
31.
bxc6
Rf6
32.
R1c2
Rxc2
33.
Qxc2
Qxc2
34.
Rxc2
bxc6
35.
Ra2
g5
36.
g4
Kg7
37.
Ra7
Kg6
38.
Ra8
Re6
39.
Kg2
Kg7
40.
Kg3
Kg6
41.
h4
Kg7
42.
h5
Kf6
43.
Rg8
Re7
44.
Kg2
Re6
45.
Kg3
Re7
46.
Kf3
Re4
47.
Rc8
Re6
48.
Ke2
Kg7
49.
f3
Kh7
50.
Ra8
Kg7
51.
Ra1
Kg8
52.
Kd3
Rf6
53.
Rf1
Kg7
54.
Rf2
Kf8
55.
f4
gxf4
56.
exf4
Kg7
57.
f5
Rd6
58.
Ke3
Kf6
59.
Kf4
Rd8
60.
Rc2
Rc8
61.
g5+
hxg5+
62.
Kg4
Kg7
63.
Kxg5
f6+
64.
Kh4
Kh7
65.
Re2
c5
1/2-1/2
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Event
Site
Petropolis
Date
1973.08.11
Round
13
White
Black
Result
1/2-1/2
[Event "Interzonal-09b"] [Site "Petropolis"] [Date "1973.08.11"] [Round "13"] [White "Polugaevsky, Lev"] [Black "Ivkov, Borislav"] [Result "1/2-1/2"] 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. Qa4+ Nc6 6. cxd5 exd5 7. Bg5 h6 8. Bxf6 Qxf6 9. e3 O-O 10. Be2 Rd8 11. O-O a6 12. Rac1 Be6 13. Ne5 Bxc3 14. Nxc6 Bd7 15. Rxc3 Bxc6 16. Qa5 Qd6 17. Rfc1 Rd7 18. Qa3 Qf6 19. b4 Qd8 20. Qb3 Bb5 21. Bf1 Bxf1 22. Kxf1 c6 23. a4 Rd6 24. Rc5 Qh4 25. Kg1 Rg6 26. g3 Qe4 27. Qc2 Qf3 28. Qd1 Qe4 29. b5 axb5 30. axb5 Ra2 31. bxc6 Rf6 32. R1c2 Rxc2 33. Qxc2 Qxc2 34. Rxc2 bxc6 35. Ra2 g5 36. g4 Kg7 37. Ra7 Kg6 38. Ra8 Re6 39. Kg2 Kg7 40. Kg3 Kg6 41. h4 Kg7 42. h5 Kf6 43. Rg8 Re7 44. Kg2 Re6 45. Kg3 Re7 46. Kf3 Re4 47. Rc8 Re6 48. Ke2 Kg7 49. f3 Kh7 50. Ra8 Kg7 51. Ra1 Kg8 52. Kd3 Rf6 53. Rf1 Kg7 54. Rf2 Kf8 55. f4 gxf4 56. exf4 Kg7 57. f5 Rd6 58. Ke3 Kf6 59. Kf4 Rd8 60. Rc2 Rc8 61. g5+ hxg5+ 62. Kg4 Kg7 63. Kxg5 f6+ 64. Kh4 Kh7 65. Re2 c5 1/2-1/2