1.
d4
d5
2.
c4
c6
3.
Nf3
Nf6
4.
Nc3
e6
5.
Bg5
h6
6.
Bxf6
Qxf6
7.
e3
Nd7
8.
cxd5
exd5
9.
Be2
Bd6
10.
O-O
O-O
11.
a3
Qe7
12.
b4
Nf6
13.
Qc2
Bg4
14.
Nd2
Bxe2
15.
Nxe2
a5
16.
bxa5
Rxa5
17.
a4
Rfa8
18.
Ra2
Qc7
19.
g3
b5
20.
Rfa1
Rxa4
21.
Rxa4
Rxa4
22.
Rxa4
bxa4
23.
Qxa4
g6
24.
Qc2
h5
25.
h3
Kg7
26.
Kg2
Nd7
27.
Nb3
Qb6
28.
Nc3
Bb4
29.
Ne2
Bd6
30.
Nc3
1/2-1/2
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Event
Site
Halle/Saale
Date
1963.??.??
White
Donner, Jan Hein
Black
Result
1/2-1/2
[Event "Zonal Halle"] [Site "Halle/Saale"] [Date "1963.??.??"] [Round "?"] [White "Donner, Jan Hein"] [Black "Trifunovic, Petar"] [Result "1/2-1/2"] [ECO "D43"] [Opening "Semi-Slav Defense"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. cxd5 exd5 9. Be2 Bd6 10. O-O O-O 11. a3 Qe7 12. b4 Nf6 13. Qc2 Bg4 14. Nd2 Bxe2 15. Nxe2 a5 16. bxa5 Rxa5 17. a4 Rfa8 18. Ra2 Qc7 19. g3 b5 20. Rfa1 Rxa4 21. Rxa4 Rxa4 22. Rxa4 bxa4 23. Qxa4 g6 24. Qc2 h5 25. h3 Kg7 26. Kg2 Nd7 27. Nb3 Qb6 28. Nc3 Bb4 29. Ne2 Bd6 30. Nc3 1/2-1/2