1.
c4
e6
2.
b3
d5
3.
Bb2
Nf6
4.
Nf3
c6
5.
Qc2
Nbd7
6.
d3
Bd6
7.
Nbd2
O-O
8.
e3
Qe7
9.
Be2
a5
10.
a4
e5
11.
O-O
e4
12.
Ne1
Nc5
13.
Bd4
Bf5
14.
Rc1
exd3
15.
Nxd3
Ne6
16.
Nf3
Nxd4
17.
Nxd4
Be4
18.
c5
Bc7
19.
Qd1
Rae8
20.
Rc3
Nd7
21.
Qc1
f5
22.
g3
g5
23.
Ne1
f4
24.
Bh5
Bg6
25.
Bxg6
hxg6
26.
Qc2
Kg7
27.
Kg2
Ne5
28.
Qb2
Qf6
29.
exf4
gxf4
30.
gxf4
Qxf4
31.
Rg3
Rf6
32.
Kg1
Nd7
33.
Ng2
Qe5
34.
f4
Qh5
35.
Rg5
Qh7
36.
Nh4
Kf7
37.
Rg4
Re4
38.
Ndf3
Bxf4
39.
Rxf4
Rexf4
40.
Ng5+
Kg8
41.
Rxf4
Qh5
42.
Ne6
Rxe6
43.
Nf3
Ne5
44.
Qc3
Nxf3+
45.
Rxf3
Re2
46.
Rh3
Qe5
47.
Qxe5
Rxe5
48.
Kf2
Rh5
49.
Re3
Rxh2+
50.
Kg3
Rb2
51.
Kg4
Kf7
52.
Rf3+
Ke6
53.
Re3+
Kf6
54.
Kf4
Rc2
0-1
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Event
Site
Ventura
Date
1971.??.??
Round
8
White
Lapiken, Peter Petrovich
Black
Ervin, Roy C
Result
0-1
Score
[Event "US Open-72"] [Site "Ventura"] [Date "1971.??.??"] [Round "8"] [White "Lapiken, Peter Petrovich"] [Black "Ervin, Roy C"] [Result "0-1"] 1. c4 e6 2. b3 d5 3. Bb2 Nf6 4. Nf3 c6 5. Qc2 Nbd7 6. d3 Bd6 7. Nbd2 O-O 8. e3 Qe7 9. Be2 a5 10. a4 e5 11. O-O e4 12. Ne1 Nc5 13. Bd4 Bf5 14. Rc1 exd3 15. Nxd3 Ne6 16. Nf3 Nxd4 17. Nxd4 Be4 18. c5 Bc7 19. Qd1 Rae8 20. Rc3 Nd7 21. Qc1 f5 22. g3 g5 23. Ne1 f4 24. Bh5 Bg6 25. Bxg6 hxg6 26. Qc2 Kg7 27. Kg2 Ne5 28. Qb2 Qf6 29. exf4 gxf4 30. gxf4 Qxf4 31. Rg3 Rf6 32. Kg1 Nd7 33. Ng2 Qe5 34. f4 Qh5 35. Rg5 Qh7 36. Nh4 Kf7 37. Rg4 Re4 38. Ndf3 Bxf4 39. Rxf4 Rexf4 40. Ng5+ Kg8 41. Rxf4 Qh5 42. Ne6 Rxe6 43. Nf3 Ne5 44. Qc3 Nxf3+ 45. Rxf3 Re2 46. Rh3 Qe5 47. Qxe5 Rxe5 48. Kf2 Rh5 49. Re3 Rxh2+ 50. Kg3 Rb2 51. Kg4 Kf7 52. Rf3+ Ke6 53. Re3+ Kf6 54. Kf4 Rc2 0-1