1.
Nf3
Nf6
2.
c4
b6
3.
g3
Bb7
4.
Bg2
e6
5.
O-O
Be7
6.
d4
O-O
7.
Nc3
Ne4
8.
Qc2
Nxc3
9.
Qxc3
f5
10.
b3
Bf6
11.
Bb2
d6
12.
Ne1
Bxg2
13.
Nxg2
Nc6
14.
Qd2
e5
15.
dxe5
dxe5
16.
Rad1
Qe8
17.
Qc2
Bg5
18.
a3
Qe6
19.
Rd5
Rae8
20.
e3
Bf6
21.
Rfd1
Rf7
22.
b4
Ne7
23.
R5d2
Ng6
24.
c5
b5
25.
Qd3
a6
26.
Qd5
Qxd5
27.
Rxd5
Ne7
28.
R5d2
1/2-1/2
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Event
Site
Buenos Aires
Date
1978.11.06
Round
11
White
Hamann, Svend
Black
Stean, Michael F
Result
1/2-1/2
Score
[Event "Olympiad-23"] [Site "Buenos Aires"] [Date "1978.11.06"] [Round "11"] [White "Hamann, Svend"] [Black "Stean, Michael F"] [Result "1/2-1/2"] 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 f5 10. b3 Bf6 11. Bb2 d6 12. Ne1 Bxg2 13. Nxg2 Nc6 14. Qd2 e5 15. dxe5 dxe5 16. Rad1 Qe8 17. Qc2 Bg5 18. a3 Qe6 19. Rd5 Rae8 20. e3 Bf6 21. Rfd1 Rf7 22. b4 Ne7 23. R5d2 Ng6 24. c5 b5 25. Qd3 a6 26. Qd5 Qxd5 27. Rxd5 Ne7 28. R5d2 1/2-1/2