1.
c4
g6
2.
d4
Bg7
3.
g3
Nf6
4.
Bg2
O-O
5.
Nc3
c5
6.
Nf3
Nc6
7.
O-O
d6
8.
d5
Na5
9.
Nd2
e5
10.
a3
b6
11.
b4
Nb7
12.
Bb2
Ng4
13.
h3
Nh6
14.
e3
Bd7
15.
Qc2
f5
16.
f4
Nf7
17.
Nb3
g5
18.
bxc5
dxc5
19.
a4
exf4
20.
exf4
Nfd6
21.
Qd3
Re8
22.
Rf2
gxf4
23.
Rxf4
Qg5
24.
Nd2
Bd4+
25.
Rxd4
cxd4
26.
Nd1
Re1+
27.
Kh2
f4
28.
g4
f3
29.
Bxf3
Nf5
30.
Nf1
Qf4+
0-1
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Event
Site
Wijk aan Zee
Date
1971.01.27
Round
13
White
Black
Result
0-1
Score
[Event "Hoogovens"] [Site "Wijk aan Zee"] [Date "1971.01.27"] [Round "13"] [White "Ivkov, Borislav"] [Black "Huebner, Robert"] [Result "0-1"] 1. c4 g6 2. d4 Bg7 3. g3 Nf6 4. Bg2 O-O 5. Nc3 c5 6. Nf3 Nc6 7. O-O d6 8. d5 Na5 9. Nd2 e5 10. a3 b6 11. b4 Nb7 12. Bb2 Ng4 13. h3 Nh6 14. e3 Bd7 15. Qc2 f5 16. f4 Nf7 17. Nb3 g5 18. bxc5 dxc5 19. a4 exf4 20. exf4 Nfd6 21. Qd3 Re8 22. Rf2 gxf4 23. Rxf4 Qg5 24. Nd2 Bd4+ 25. Rxd4 cxd4 26. Nd1 Re1+ 27. Kh2 f4 28. g4 f3 29. Bxf3 Nf5 30. Nf1 Qf4+ 0-1