1.
d4
Nf6
2.
c4
e6
3.
Nc3
Bb4
4.
Qc2
c5
5.
dxc5
O-O
6.
Nf3
Na6
7.
a3
Bxc3+
8.
Qxc3
Nxc5
9.
b4
Nce4
10.
Qd4
d6
11.
e3
e5
12.
Qd3
a5
13.
Nd2
Bf5
14.
Qb3
axb4
15.
Qxb4
Nc5
16.
f3
Bd3
17.
Qc3
e4
18.
Bb2
Re8
19.
f4
Na4
20.
Qb3
Nxb2
21.
Qxb2
Ng4
22.
Qd4
Nh6
23.
Qd5
Qb6
24.
Qd4
Qxd4
25.
exd4
Nf5
26.
Nb3
Bc2
27.
g4
Nh4
28.
Nd2
e3
29.
Nb1
0-1
Opening Explorer
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Site
Siegen
Date
1970.09.10
Round
6
White
Roehrl, Karl
Black
Darga, Klaus
Result
0-1
Score
[Event "Olympiad-19 Preliminaries F"] [Site "Siegen"] [Date "1970.09.10"] [Round "6"] [White "Roehrl, Karl"] [Black "Darga, Klaus"] [Result "0-1"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 d6 11. e3 e5 12. Qd3 a5 13. Nd2 Bf5 14. Qb3 axb4 15. Qxb4 Nc5 16. f3 Bd3 17. Qc3 e4 18. Bb2 Re8 19. f4 Na4 20. Qb3 Nxb2 21. Qxb2 Ng4 22. Qd4 Nh6 23. Qd5 Qb6 24. Qd4 Qxd4 25. exd4 Nf5 26. Nb3 Bc2 27. g4 Nh4 28. Nd2 e3 29. Nb1 0-1