1.
c4
Nf6
2.
Nc3
d5
3.
cxd5
Nxd5
4.
g3
g6
5.
Bg2
Nxc3
6.
bxc3
Bg7
7.
Rb1
Nd7
8.
Nf3
O-O
9.
O-O
c5
10.
c4
Qc7
11.
d3
Rb8
12.
Bf4
e5
13.
Bd2
b6
14.
Ng5
Bb7
15.
Ne4
Qc6
16.
f3
Nf6
17.
Nc3
Qd7
18.
Be3
Ne8
19.
Bf2
Nc7
20.
Qa4
Qxa4
21.
Nxa4
f5
22.
Rb3
Ne6
23.
Nc3
Nd4
24.
Bxd4
cxd4
25.
Nb5
a6
26.
Nc7
Rfc8
27.
Ne6
Bh6
28.
f4
Bxg2
29.
Kxg2
Rc6
30.
Ng5
Re8
31.
Kf2
Bxg5
32.
fxg5
e4
33.
a4
Kf7
34.
Rfb1
Ree6
35.
R1b2
Ke8
36.
Ra2
1/2-1/2
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Event
Site
Hungary
Date
1969.??.??
White
Black
Result
1/2-1/2
[Event "Match/Nation HUN-URS"] [Site "Hungary"] [Date "1969.??.??"] [Round "?"] [White "Portisch, Lajos"] [Black "Polugaevsky, Lev"] [Result "1/2-1/2"] 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 6. bxc3 Bg7 7. Rb1 Nd7 8. Nf3 O-O 9. O-O c5 10. c4 Qc7 11. d3 Rb8 12. Bf4 e5 13. Bd2 b6 14. Ng5 Bb7 15. Ne4 Qc6 16. f3 Nf6 17. Nc3 Qd7 18. Be3 Ne8 19. Bf2 Nc7 20. Qa4 Qxa4 21. Nxa4 f5 22. Rb3 Ne6 23. Nc3 Nd4 24. Bxd4 cxd4 25. Nb5 a6 26. Nc7 Rfc8 27. Ne6 Bh6 28. f4 Bxg2 29. Kxg2 Rc6 30. Ng5 Re8 31. Kf2 Bxg5 32. fxg5 e4 33. a4 Kf7 34. Rfb1 Ree6 35. R1b2 Ke8 36. Ra2 1/2-1/2