1.
Nf3
Nf6
2.
g3
g6
3.
Bg2
Bg7
4.
O-O
O-O
5.
d4
d6
6.
c4
Nbd7
7.
Nc3
e5
8.
e3
Re8
9.
b3
Nf8
10.
dxe5
dxe5
11.
Ba3
N6d7
12.
Qc2
Ne6
13.
Rad1
f5
14.
e4
f4
15.
Bh3
c6
16.
Ne2
Qf6
17.
Bb2
Qe7
18.
Rd2
Ndf8
19.
Bg2
Ng5
20.
Nxg5
Qxg5
21.
Rfd1
Ne6
22.
c5
Qe7
23.
Rd6
Rf8
24.
R1d3
Ng5
25.
f3
fxg3
26.
hxg3
Nf7
27.
Qd1
Be6
28.
Qd2
Nxd6
29.
cxd6
Qd7
30.
f4
Rae8
31.
fxe5
Bg4
32.
e6
Bxe6
33.
Bxg7
Qxg7
34.
d7
Rd8
35.
Nf4
Bg4
36.
Bf3
Bxf3
37.
Ne6
Qa1+
0-1
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Event
Site
The Hague
Date
1966.10.02
Round
14
White
Pfleger, Helmut
Black
Donner, Jan Hein
Result
0-1
Score
[Event "Zonal Den Haag"] [Site "The Hague"] [Date "1966.10.02"] [Round "14"] [White "Pfleger, Helmut"] [Black "Donner, Jan Hein"] [Result "0-1"] 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. e3 Re8 9. b3 Nf8 10. dxe5 dxe5 11. Ba3 N6d7 12. Qc2 Ne6 13. Rad1 f5 14. e4 f4 15. Bh3 c6 16. Ne2 Qf6 17. Bb2 Qe7 18. Rd2 Ndf8 19. Bg2 Ng5 20. Nxg5 Qxg5 21. Rfd1 Ne6 22. c5 Qe7 23. Rd6 Rf8 24. R1d3 Ng5 25. f3 fxg3 26. hxg3 Nf7 27. Qd1 Be6 28. Qd2 Nxd6 29. cxd6 Qd7 30. f4 Rae8 31. fxe5 Bg4 32. e6 Bxe6 33. Bxg7 Qxg7 34. d7 Rd8 35. Nf4 Bg4 36. Bf3 Bxf3 37. Ne6 Qa1+ 0-1