1.
Nf3
Nf6
2.
g3
g6
3.
Bg2
Bg7
4.
c4
O-O
5.
O-O
d6
6.
d4
Nc6
7.
Nc3
a6
8.
d5
Na5
9.
Nd2
c5
10.
Qc2
Rb8
11.
b3
b5
12.
Bb2
e5
13.
dxe6
Bxe6
14.
cxb5
axb5
15.
Rad1
Bf5
16.
e4
Bg4
17.
f3
Be6
18.
e5
dxe5
19.
Nde4
Qe7
20.
Nxf6+
Bxf6
21.
Ne4
Bg7
22.
Qxc5
Qxc5+
23.
Nxc5
Rfd8
24.
Nxe6
fxe6
25.
Bh3
Kf7
26.
f4
Ke7
27.
fxe5
Bh8
28.
Rxd8
Rxd8
29.
Ba3+
Kd7
30.
Bd6
1-0
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Event
Site
Siegen
Date
1970.09.16
Round
3
White
Patterson, Nicholas J
Black
Heyns, Anthon
Result
1-0
Score
[Event "Olympiad-19 Final D"] [Site "Siegen"] [Date "1970.09.16"] [Round "3"] [White "Patterson, Nicholas J"] [Black "Heyns, Anthon"] [Result "1-0"] 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 e5 13. dxe6 Bxe6 14. cxb5 axb5 15. Rad1 Bf5 16. e4 Bg4 17. f3 Be6 18. e5 dxe5 19. Nde4 Qe7 20. Nxf6+ Bxf6 21. Ne4 Bg7 22. Qxc5 Qxc5+ 23. Nxc5 Rfd8 24. Nxe6 fxe6 25. Bh3 Kf7 26. f4 Ke7 27. fxe5 Bh8 28. Rxd8 Rxd8 29. Ba3+ Kd7 30. Bd6 1-0