1.
f4
Nf6
2.
Nf3
g6
3.
Nc3
d5
4.
e3
Bg7
5.
Be2
O-O
6.
O-O
c5
7.
d4
b6
8.
Ne5
Ba6
9.
dxc5
bxc5
10.
Bxa6
Nxa6
11.
Nc6
Qc7
12.
Nxd5
Nxd5
13.
Qxd5
Nb4
14.
Nxb4
cxb4
15.
Qb3
a5
16.
Rf2
Rfd8
17.
Rd2
Rd6
18.
Rxd6
Qxd6
19.
Qd3
Rd8
20.
Kf2
Qxd3
21.
cxd3
Rxd3
22.
Ke2
Rd8
23.
Rb1
f5
24.
Bd2
Kf7
25.
a3
Ke6
26.
axb4
axb4
27.
Bxb4
Rb8
28.
Ba3
Rb3
29.
Rd1
Bxb2
30.
Rb1
Rxa3
31.
Rxb2
1/2-1/2
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Event
Site
Saint Louis
Date
1960.08.11
Round
4
White
Ohman, Howard
Black
O'Keefe, Jack
Result
1/2-1/2
[Event "US Open-61"] [Site "Saint Louis"] [Date "1960.08.11"] [Round "4"] [White "Ohman, Howard"] [Black "O'Keefe, Jack"] [Result "1/2-1/2"] 1. f4 Nf6 2. Nf3 g6 3. Nc3 d5 4. e3 Bg7 5. Be2 O-O 6. O-O c5 7. d4 b6 8. Ne5 Ba6 9. dxc5 bxc5 10. Bxa6 Nxa6 11. Nc6 Qc7 12. Nxd5 Nxd5 13. Qxd5 Nb4 14. Nxb4 cxb4 15. Qb3 a5 16. Rf2 Rfd8 17. Rd2 Rd6 18. Rxd6 Qxd6 19. Qd3 Rd8 20. Kf2 Qxd3 21. cxd3 Rxd3 22. Ke2 Rd8 23. Rb1 f5 24. Bd2 Kf7 25. a3 Ke6 26. axb4 axb4 27. Bxb4 Rb8 28. Ba3 Rb3 29. Rd1 Bxb2 30. Rb1 Rxa3 31. Rxb2 1/2-1/2