1.
Nf3
Nf6
2.
c4
g6
3.
Nc3
Bg7
4.
d4
O-O
5.
e4
d6
6.
Be2
e5
7.
Be3
Nc6
8.
d5
Ne7
9.
Nd2
Ne8
10.
b4
f5
11.
f3
a5
12.
a3
Nf6
13.
O-O
axb4
14.
axb4
Rxa1
15.
Qxa1
fxe4
16.
fxe4
Bd7
17.
c5
Qa8
18.
Nc4
Qb8
19.
b5
Ne8
20.
Rxf8+
Kxf8
21.
Qa3
Kf7
22.
c6
bxc6
23.
bxc6
Bc8
24.
Nb5
Kf8
25.
Qa5
h6
26.
Ba7
Qa8
27.
Nxc7
Nxc7
28.
Qxc7
Ba6
29.
Nb6
1-0
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Event
Site
Sao Paulo
Date
1973.08.28
Round
6
White
Black
Carvalho, Herbert Abreu
Result
1-0
Score
[Event "Sao Paulo International"] [Site "Sao Paulo"] [Date "1973.08.28"] [Round "6"] [White "Ivkov, Borislav"] [Black "Carvalho, Herbert Abreu"] [Result "1-0"] 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. e4 d6 6. Be2 e5 7. Be3 Nc6 8. d5 Ne7 9. Nd2 Ne8 10. b4 f5 11. f3 a5 12. a3 Nf6 13. O-O axb4 14. axb4 Rxa1 15. Qxa1 fxe4 16. fxe4 Bd7 17. c5 Qa8 18. Nc4 Qb8 19. b5 Ne8 20. Rxf8+ Kxf8 21. Qa3 Kf7 22. c6 bxc6 23. bxc6 Bc8 24. Nb5 Kf8 25. Qa5 h6 26. Ba7 Qa8 27. Nxc7 Nxc7 28. Qxc7 Ba6 29. Nb6 1-0