1.
d4
g6
2.
c4
Bg7
3.
Nc3
d6
4.
Nf3
Bg4
5.
e4
Nc6
6.
Be3
e5
7.
d5
Nd4
8.
Be2
Bxf3
9.
Bxf3
Ne7
10.
Be2
c5
11.
O-O
O-O
12.
g4
a6
13.
a3
b6
14.
b4
Kh8
15.
Rb1
Ra7
16.
f3
f5
17.
Kg2
Ng8
18.
Qd2
Raf7
19.
h3
Bf6
20.
a4
Bh4
21.
bxc5
bxc5
22.
Na2
h5
23.
gxh5
gxh5
24.
Kh1
Rg7
25.
Rg1
Bg3
26.
Nc1
Qh4
0-1
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Event
Site
Lincoln
Date
1969.08.19
Round
9
White
Dunning, John
Black
Grefe, John Alan
Result
0-1
Score
[Event "US Open-70"] [Site "Lincoln"] [Date "1969.08.19"] [Round "9"] [White "Dunning, John"] [Black "Grefe, John Alan"] [Result "0-1"] 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. Nf3 Bg4 5. e4 Nc6 6. Be3 e5 7. d5 Nd4 8. Be2 Bxf3 9. Bxf3 Ne7 10. Be2 c5 11. O-O O-O 12. g4 a6 13. a3 b6 14. b4 Kh8 15. Rb1 Ra7 16. f3 f5 17. Kg2 Ng8 18. Qd2 Raf7 19. h3 Bf6 20. a4 Bh4 21. bxc5 bxc5 22. Na2 h5 23. gxh5 gxh5 24. Kh1 Rg7 25. Rg1 Bg3 26. Nc1 Qh4 0-1