1.
c4
Nf6
2.
Nc3
e6
3.
Nf3
c5
4.
g3
b6
5.
Bg2
Bb7
6.
O-O
Be7
7.
d4
cxd4
8.
Qxd4
Nc6
9.
Qf4
O-O
10.
Rd1
Qb8
11.
Qxb8
Rfxb8
12.
Bf4
Rd8
13.
Nb5
Na5
14.
Bd6
Kf8
15.
Bxe7+
Kxe7
16.
Nd6
Ne8
17.
Nxb7
Nxb7
18.
Ne5
Rab8
19.
Rxd7+
Rxd7
20.
Nc6+
Kf8
21.
Nxb8
Rc7
22.
Na6
Re7
23.
b4
Nbd6
24.
Rc1
e5
25.
e3
e4
26.
Bf1
Rb7
27.
c5
bxc5
28.
bxc5
Nc8
29.
a4
Rb2
30.
Rd1
Ne7
31.
Bb5
Ng8
32.
c6
Rc2
33.
Rd8
Ke7
34.
c7
1-0
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Event
Site
Ljubljana/Portoroz
Date
1973.04.09
Round
6
White
Black
Csom, Istvan
Result
1-0
Score
[Event "Vidmar Memorial-02"] [Site "Ljubljana/Portoroz"] [Date "1973.04.09"] [Round "6"] [White "Portisch, Lajos"] [Black "Csom, Istvan"] [Result "1-0"] 1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 Nc6 9. Qf4 O-O 10. Rd1 Qb8 11. Qxb8 Rfxb8 12. Bf4 Rd8 13. Nb5 Na5 14. Bd6 Kf8 15. Bxe7+ Kxe7 16. Nd6 Ne8 17. Nxb7 Nxb7 18. Ne5 Rab8 19. Rxd7+ Rxd7 20. Nc6+ Kf8 21. Nxb8 Rc7 22. Na6 Re7 23. b4 Nbd6 24. Rc1 e5 25. e3 e4 26. Bf1 Rb7 27. c5 bxc5 28. bxc5 Nc8 29. a4 Rb2 30. Rd1 Ne7 31. Bb5 Ng8 32. c6 Rc2 33. Rd8 Ke7 34. c7 1-0