1.
g3
c5
2.
Bg2
g6
3.
e4
Bg7
4.
d3
Nc6
5.
f4
d6
6.
Nf3
Nf6
7.
O-O
O-O
8.
Nh4
d5
9.
e5
Ne8
10.
c3
Be6
11.
g4
g5
12.
Nf5
Bxf5
13.
gxf5
gxf4
14.
Bxf4
Nxe5
15.
Re1
Nc6
16.
Qb3
e5
17.
fxe6
fxe6
18.
Bg3
c4
19.
Qxb7
Na5
20.
Qa6
Qb6+
21.
Qxb6
axb6
22.
Na3
Kf7
23.
dxc4
Nf6
24.
cxd5
exd5
25.
Rad1
Nc6
26.
Rxd5
Ne7
27.
Rde5
Rae8
28.
Nc4
Nc8
29.
Bc6
Rxe5
30.
Nxe5+
Kg8
31.
Ba4
h5
32.
Bh4
Nd6
33.
Bb3+
Kh7
34.
Bc2+
Kg8
35.
Bf2
Rd8
36.
Bxb6
1-0
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Event
Site
Ventura
Date
1971.??.??
Round
12
White
De Fotis, Gregory
Black
Riggs, H
Result
1-0
Score
[Event "US Open-72"] [Site "Ventura"] [Date "1971.??.??"] [Round "12"] [White "De Fotis, Gregory"] [Black "Riggs, H"] [Result "1-0"] 1. g3 c5 2. Bg2 g6 3. e4 Bg7 4. d3 Nc6 5. f4 d6 6. Nf3 Nf6 7. O-O O-O 8. Nh4 d5 9. e5 Ne8 10. c3 Be6 11. g4 g5 12. Nf5 Bxf5 13. gxf5 gxf4 14. Bxf4 Nxe5 15. Re1 Nc6 16. Qb3 e5 17. fxe6 fxe6 18. Bg3 c4 19. Qxb7 Na5 20. Qa6 Qb6+ 21. Qxb6 axb6 22. Na3 Kf7 23. dxc4 Nf6 24. cxd5 exd5 25. Rad1 Nc6 26. Rxd5 Ne7 27. Rde5 Rae8 28. Nc4 Nc8 29. Bc6 Rxe5 30. Nxe5+ Kg8 31. Ba4 h5 32. Bh4 Nd6 33. Bb3+ Kh7 34. Bc2+ Kg8 35. Bf2 Rd8 36. Bxb6 1-0