1.
c4
Nf6
2.
Nc3
g6
3.
e4
d6
4.
d4
Bg7
5.
f3
O-O
6.
Be3
Na6
7.
Qd2
c5
8.
Nge2
Bd7
9.
g4
cxd4
10.
Nxd4
h5
11.
gxh5
Nxh5
12.
O-O-O
Nc7
13.
Bh6
Kh7
14.
Bxg7
Kxg7
15.
Rg1
Ne6
16.
Nf5+
Kg8
17.
e5
Nef4
18.
Ng3
Bc6
19.
Nxh5
Nxh5
20.
Qh6
Ng7
21.
Bd3
Qa5
22.
Rxg6
fxg6
23.
Bxg6
1-0
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Event
Site
Boston
Date
1970.08.??
White
Koretsky, Peter
Black
Opalek, James
Result
1-0
Score
[Event "US Open-71"] [Site "Boston"] [Date "1970.08.??"] [Round "?"] [White "Koretsky, Peter"] [Black "Opalek, James"] [Result "1-0"] [EventArchiveKey "us-open-1970-boston"] 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 O-O 6. Be3 Na6 7. Qd2 c5 8. Nge2 Bd7 9. g4 cxd4 10. Nxd4 h5 11. gxh5 Nxh5 12. O-O-O Nc7 13. Bh6 Kh7 14. Bxg7 Kxg7 15. Rg1 Ne6 16. Nf5+ Kg8 17. e5 Nef4 18. Ng3 Bc6 19. Nxh5 Nxh5 20. Qh6 Ng7 21. Bd3 Qa5 22. Rxg6 fxg6 23. Bxg6 1-0