1.
e4
c5
2.
Nf3
e6
3.
d4
cxd4
4.
Nxd4
Nf6
5.
Nc3
d6
6.
g3
Be7
7.
Bg2
a6
8.
O-O
Qc7
9.
Qd2
Bd7
10.
b3
Nc6
11.
Nde2
O-O
12.
f4
Rfd8
13.
h3
b5
14.
a3
Rab8
15.
Kh2
a5
16.
Bb2
b4
17.
axb4
axb4
18.
Nd1
Ra8
19.
Rb1
Ra2
20.
Ne3
Be8
21.
g4
Nd7
22.
Ng3
Bf8
23.
f5
Nde5
24.
g5
Qb6
25.
Qf2
Bd7
26.
Qf4
Bc8
27.
Ng4
Ba6
28.
Rfd1
Rc8
29.
Nh5
Nxg4+
30.
Qxg4
Ne5
31.
Qf4
Rxc2
0-1
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Event
Site
Las Vegas
Date
1975.03.07
Round
8
White
Slifko, D
Black
Porterfield, Michael
Result
0-1
[Event "Las Vegas National op"] [Site "Las Vegas"] [Date "1975.03.07"] [Round "8"] [White "Slifko, D"] [Black "Porterfield, Michael"] [Result "0-1"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 Be7 7. Bg2 a6 8. O-O Qc7 9. Qd2 Bd7 10. b3 Nc6 11. Nde2 O-O 12. f4 Rfd8 13. h3 b5 14. a3 Rab8 15. Kh2 a5 16. Bb2 b4 17. axb4 axb4 18. Nd1 Ra8 19. Rb1 Ra2 20. Ne3 Be8 21. g4 Nd7 22. Ng3 Bf8 23. f5 Nde5 24. g5 Qb6 25. Qf2 Bd7 26. Qf4 Bc8 27. Ng4 Ba6 28. Rfd1 Rc8 29. Nh5 Nxg4+ 30. Qxg4 Ne5 31. Qf4 Rxc2 0-1