1.
e4
c5
2.
Nf3
d6
3.
d4
cxd4
4.
Nxd4
Nf6
5.
Nc3
g6
6.
Be3
Bg7
7.
f3
Nc6
8.
Qd2
O-O
9.
O-O-O
Nxd4
10.
Bxd4
Be6
11.
Kb1
Qc7
12.
g4
Rfc8
13.
h4
Qa5
14.
a3
Rab8
15.
h5
b5
16.
h6
Bh8
17.
Bxf6
Bxf6
18.
Nd5
b4
19.
axb4
Qa4
20.
b5
Bxd5
21.
exd5
a6
0-1
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Event
Site
Mannheim
Date
1975.03.15
Round
1
White
Ostermeyer, Peter
Black
Sosonko, Gennadi
Result
0-1
[Event "GER-ch56 International03"] [Site "Mannheim"] [Date "1975.03.15"] [Round "1"] [White "Ostermeyer, Peter"] [Black "Sosonko, Gennadi"] [Result "0-1"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O Nxd4 10. Bxd4 Be6 11. Kb1 Qc7 12. g4 Rfc8 13. h4 Qa5 14. a3 Rab8 15. h5 b5 16. h6 Bh8 17. Bxf6 Bxf6 18. Nd5 b4 19. axb4 Qa4 20. b5 Bxd5 21. exd5 a6 0-1