1.
c4
g6
2.
Nc3
Bg7
3.
g3
c5
4.
Bg2
Nc6
5.
Nh3
e6
6.
Nf4
Nge7
7.
O-O
a6
8.
d3
Rb8
9.
Bd2
b5
10.
cxb5
axb5
11.
Ne4
d6
12.
Bc3
e5
13.
Nh3
f5
14.
Neg5
h6
15.
Nf3
g5
16.
Nhxg5
hxg5
17.
Nxg5
b4
18.
Bd2
Nd4
19.
f4
Ne6
20.
Qb3
Qd7
21.
a4
Nxg5
22.
fxg5
Qe6
23.
Qc2
Bb7
24.
e4
O-O
25.
Qd1
fxe4
26.
Rxf8+
Rxf8
27.
dxe4
Qc4
28.
Qe1
Nc6
29.
Be3
Nd4
30.
Qd1
Ne2+
31.
Kh1
Bxe4
32.
Qd2
Bxg2+
33.
Kxg2
Qe4+
34.
Kh3
Qf5+
35.
Kg2
Qf3+
36.
Kh3
Kf7
0-1
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Site
Siegen
Date
1970.09.07
Round
3
White
Ulvestad, Olaf
Black
Result
0-1
Score
[Event "Olympiad-19 Preliminaries B"] [Site "Siegen"] [Date "1970.09.07"] [Round "3"] [White "Ulvestad, Olaf"] [Black "Ivkov, Borislav"] [Result "0-1"] 1. c4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. Nh3 e6 6. Nf4 Nge7 7. O-O a6 8. d3 Rb8 9. Bd2 b5 10. cxb5 axb5 11. Ne4 d6 12. Bc3 e5 13. Nh3 f5 14. Neg5 h6 15. Nf3 g5 16. Nhxg5 hxg5 17. Nxg5 b4 18. Bd2 Nd4 19. f4 Ne6 20. Qb3 Qd7 21. a4 Nxg5 22. fxg5 Qe6 23. Qc2 Bb7 24. e4 O-O 25. Qd1 fxe4 26. Rxf8+ Rxf8 27. dxe4 Qc4 28. Qe1 Nc6 29. Be3 Nd4 30. Qd1 Ne2+ 31. Kh1 Bxe4 32. Qd2 Bxg2+ 33. Kxg2 Qe4+ 34. Kh3 Qf5+ 35. Kg2 Qf3+ 36. Kh3 Kf7 0-1