1.
d4
Nf6
2.
c4
e6
3.
Nc3
d5
4.
Bg5
c5
5.
cxd5
cxd4
6.
Qxd4
Nc6
7.
Bxf6
gxf6
8.
Qd2
exd5
9.
e3
Be6
10.
Nf3
Bc5
11.
Bb5
O-O
12.
Bxc6
bxc6
13.
O-O
f5
14.
Na4
Bd6
15.
Rac1
Rc8
16.
Nc5
Qf6
17.
Qd4
Qg7
18.
Qxg7+
Kxg7
19.
Nd4
Bxc5
20.
Rxc5
Bd7
21.
Rfc1
Rc7
22.
b3
Rb8
23.
Rxd5
cxd5
24.
Rxc7
Rc8
25.
Rxc8
Bxc8
26.
b4
Bd7
27.
f4
Kf6
28.
Kf2
a6
29.
Ke2
Ke7
30.
Kd3
Kd6
31.
Kc3
f6
32.
Kb3
Kc7
33.
a4
Kb6
34.
a5+
Kb7
35.
Kc3
Kc7
36.
Kd2
Kd6
37.
Ke1
Bc8
38.
Kf2
Bd7
39.
Kg3
Kc7
40.
Kh4
Be8
41.
Nxf5
d4
42.
Nxd4
Kd6
43.
e4
Bg6
44.
f5
Be8
45.
g4
Ke5
46.
Ne6
Bb5
47.
Nc5
Kf4
48.
h3
Bf1
49.
Nd7
1-0
Opening Explorer
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Event
Stockholm
Site
Stockholm
Date
1970.12.31
Round
5
White
Black
Olsson, Ake
Result
1-0
Score
[Event "Stockholm"] [Site "Stockholm"] [Date "1970.12.31"] [Round "5"] [White "Ivkov, Borislav"] [Black "Olsson, Ake"] [Result "1-0"] 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 c5 5. cxd5 cxd4 6. Qxd4 Nc6 7. Bxf6 gxf6 8. Qd2 exd5 9. e3 Be6 10. Nf3 Bc5 11. Bb5 O-O 12. Bxc6 bxc6 13. O-O f5 14. Na4 Bd6 15. Rac1 Rc8 16. Nc5 Qf6 17. Qd4 Qg7 18. Qxg7+ Kxg7 19. Nd4 Bxc5 20. Rxc5 Bd7 21. Rfc1 Rc7 22. b3 Rb8 23. Rxd5 cxd5 24. Rxc7 Rc8 25. Rxc8 Bxc8 26. b4 Bd7 27. f4 Kf6 28. Kf2 a6 29. Ke2 Ke7 30. Kd3 Kd6 31. Kc3 f6 32. Kb3 Kc7 33. a4 Kb6 34. a5+ Kb7 35. Kc3 Kc7 36. Kd2 Kd6 37. Ke1 Bc8 38. Kf2 Bd7 39. Kg3 Kc7 40. Kh4 Be8 41. Nxf5 d4 42. Nxd4 Kd6 43. e4 Bg6 44. f5 Be8 45. g4 Ke5 46. Ne6 Bb5 47. Nc5 Kf4 48. h3 Bf1 49. Nd7 1-0