1.
Nf3
g6
2.
g3
d6
3.
d4
Bg7
4.
Bg2
Nf6
5.
c4
O-O
6.
Nc3
Nc6
7.
e4
Bg4
8.
O-O
Nd7
9.
Be3
e5
10.
d5
Nd4
11.
h3
Nxf3+
12.
Bxf3
Bxh3
13.
Re1
Nf6
14.
Kh2
Qc8
15.
Rh1
Ng4+
16.
Bxg4
Bxg4
17.
f3
Bd7
18.
Qd2
f5
19.
Bh6
Rf7
20.
Kg2
Qf8
21.
exf5
gxf5
22.
Rh4
Bxh6
23.
Qxh6
Qxh6
24.
Rxh6
a6
25.
a4
Re8
26.
b4
Rg7
27.
b5
Rg6
28.
Rh4
a5
29.
Kf2
Re7
30.
Re1
Reg7
31.
Rg1
Be8
32.
Ne2
Rf6
33.
Nc3
c6
34.
Rb1
cxd5
35.
Nxd5
Rfg6
36.
Re1
Bd7
37.
Rh2
Be6
38.
Rd1
Bxd5
39.
Rxd5
Rc7
40.
Rh4
Kg7
41.
Rd2
f4
42.
Rg4
Rxg4
43.
fxg4
Rxc4
44.
Rxd6
Rc2+
0-1
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Event
Site
Las Vegas
Date
1973.03.12
Round
1
White
Oakes, GB
Black
Grefe, John Alan
Result
0-1
Score
[Event "Las Vegas National op"] [Site "Las Vegas"] [Date "1973.03.12"] [Round "1"] [White "Oakes, GB"] [Black "Grefe, John Alan"] [Result "0-1"] 1. Nf3 g6 2. g3 d6 3. d4 Bg7 4. Bg2 Nf6 5. c4 O-O 6. Nc3 Nc6 7. e4 Bg4 8. O-O Nd7 9. Be3 e5 10. d5 Nd4 11. h3 Nxf3+ 12. Bxf3 Bxh3 13. Re1 Nf6 14. Kh2 Qc8 15. Rh1 Ng4+ 16. Bxg4 Bxg4 17. f3 Bd7 18. Qd2 f5 19. Bh6 Rf7 20. Kg2 Qf8 21. exf5 gxf5 22. Rh4 Bxh6 23. Qxh6 Qxh6 24. Rxh6 a6 25. a4 Re8 26. b4 Rg7 27. b5 Rg6 28. Rh4 a5 29. Kf2 Re7 30. Re1 Reg7 31. Rg1 Be8 32. Ne2 Rf6 33. Nc3 c6 34. Rb1 cxd5 35. Nxd5 Rfg6 36. Re1 Bd7 37. Rh2 Be6 38. Rd1 Bxd5 39. Rxd5 Rc7 40. Rh4 Kg7 41. Rd2 f4 42. Rg4 Rxg4 43. fxg4 Rxc4 44. Rxd6 Rc2+ 0-1