1.
e4
c5
2.
Nf3
d6
3.
d4
cxd4
4.
Nxd4
Nf6
5.
Nc3
e6
6.
f4
Nc6
7.
Nf3
Be7
8.
Bd3
O-O
9.
O-O
a6
10.
Qe1
Nd7
11.
Kh1
Nc5
12.
Be3
Nxd3
13.
cxd3
d5
14.
Qf2
b5
15.
e5
Rb8
16.
Bc5
b4
17.
Ne2
a5
18.
Rac1
Ba6
19.
Ned4
Nxd4
20.
Qxd4
Rc8
21.
Bxe7
Qxe7
22.
Qe3
Qd7
23.
Nd4
Rxc1
24.
Rxc1
Rc8
25.
Rf1
Qa7
26.
g4
a4
27.
f5
Qe7
28.
f6
Qf8
29.
Qd2
a3
30.
bxa3
Rc3
31.
Rf3
Rxa3
32.
Nxe6
fxe6
33.
f7+
Qxf7
34.
Rxf7
Kxf7
35.
Qf4+
Ke8
36.
Qxb4
Rxa2
37.
Qb8+
Kd7
38.
Qd6+
Kc8
39.
Qxe6+
Kb8
40.
Qb6+
Bb7
41.
d4
Re2
42.
Qd6+
Ka7
43.
e6
Bc8
44.
Qc7+
1-0
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Event
Site
Las Vegas
Date
1974.03.22
Round
8
White
Weinstein, Norman
Black
Diesen, Mark C
Result
1-0
Score
[Event "Las Vegas National op"] [Site "Las Vegas"] [Date "1974.03.22"] [Round "8"] [White "Weinstein, Norman"] [Black "Diesen, Mark C"] [Result "1-0"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. f4 Nc6 7. Nf3 Be7 8. Bd3 O-O 9. O-O a6 10. Qe1 Nd7 11. Kh1 Nc5 12. Be3 Nxd3 13. cxd3 d5 14. Qf2 b5 15. e5 Rb8 16. Bc5 b4 17. Ne2 a5 18. Rac1 Ba6 19. Ned4 Nxd4 20. Qxd4 Rc8 21. Bxe7 Qxe7 22. Qe3 Qd7 23. Nd4 Rxc1 24. Rxc1 Rc8 25. Rf1 Qa7 26. g4 a4 27. f5 Qe7 28. f6 Qf8 29. Qd2 a3 30. bxa3 Rc3 31. Rf3 Rxa3 32. Nxe6 fxe6 33. f7+ Qxf7 34. Rxf7 Kxf7 35. Qf4+ Ke8 36. Qxb4 Rxa2 37. Qb8+ Kd7 38. Qd6+ Kc8 39. Qxe6+ Kb8 40. Qb6+ Bb7 41. d4 Re2 42. Qd6+ Ka7 43. e6 Bc8 44. Qc7+ 1-0