1.
Nf3
c5
2.
g3
Nc6
3.
c4
Nf6
4.
Bg2
d5
5.
cxd5
Nxd5
6.
d4
Nb6
7.
e3
Bg4
8.
Nc3
cxd4
9.
exd4
g6
10.
Be3
Bg7
11.
O-O
O-O
12.
h3
Bxf3
13.
Qxf3
Nc4
14.
Qe2
Nxe3
15.
fxe3
e6
16.
Rad1
Qc7
17.
g4
Kh8
18.
Kh1
f5
19.
d5
exd5
20.
gxf5
Rxf5
21.
Rxf5
gxf5
22.
Nxd5
Qe5
23.
Nf4
Qe8
24.
Rd5
Be5
25.
Qd2
Rd8
26.
Rxd8
Qxd8
27.
Qxd8+
Nxd8
28.
b3
Kg7
29.
Bd5
Kf6
30.
Kg2
b5
31.
Kf3
Nf7
32.
Bxf7
Kxf7
33.
Nd3
Bd6
34.
e4
Kf6
35.
a4
bxa4
36.
bxa4
fxe4+
37.
Kxe4
Kg5
38.
Kf3
Kf5
39.
Ke3
Bh2
40.
Nb4
1/2-1/2
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Event
Site
Budapest
Date
1981.06.13
Round
5
White
Csom, Istvan
Black
Result
1/2-1/2
WhiteElo
2500
BlackElo
2650
Score
[Event "HUN-ch37"] [Site "Budapest"] [Date "1981.06.13"] [Round "5"] [White "Csom, Istvan"] [Black "Portisch, Lajos"] [Result "1/2-1/2"] [WhiteElo "2500"] [BlackElo "2650"] 1. Nf3 c5 2. g3 Nc6 3. c4 Nf6 4. Bg2 d5 5. cxd5 Nxd5 6. d4 Nb6 7. e3 Bg4 8. Nc3 cxd4 9. exd4 g6 10. Be3 Bg7 11. O-O O-O 12. h3 Bxf3 13. Qxf3 Nc4 14. Qe2 Nxe3 15. fxe3 e6 16. Rad1 Qc7 17. g4 Kh8 18. Kh1 f5 19. d5 exd5 20. gxf5 Rxf5 21. Rxf5 gxf5 22. Nxd5 Qe5 23. Nf4 Qe8 24. Rd5 Be5 25. Qd2 Rd8 26. Rxd8 Qxd8 27. Qxd8+ Nxd8 28. b3 Kg7 29. Bd5 Kf6 30. Kg2 b5 31. Kf3 Nf7 32. Bxf7 Kxf7 33. Nd3 Bd6 34. e4 Kf6 35. a4 bxa4 36. bxa4 fxe4+ 37. Kxe4 Kg5 38. Kf3 Kf5 39. Ke3 Bh2 40. Nb4 1/2-1/2