[Event "Interpolis 02nd"]
[Round "4"]
[Site "Tilburg"]
[Date "1978"]
[White "Portisch, Lajos"]
[WhiteElo "2630"]
[Black "Sosonko, Gennadi"]
[BlackElo "2575"]
[Result "1-0"]
[ECO "E41"]
[Opening "Nimzo-Indian, 4.e3 c5"]
 1. d4   Nf6
 2. c4   e6
 3. Nc3  Bb4
 4. e3   c5
 5. Bd3  Nc6
 6. Nf3  d5
 7. O-O  O-O
 8. a3   Bxc3
 9. bxc3 dxc4
10. Bxc4 Qc7
11. Ba2  e5
12. Qc2  Bg4
13. dxe5 Nxe5
14. Ne1  Rad8
15. f3   Be6
16. c4   Qa5
17. Bb2  Rd2
18. Qc1  Nd3
19. Qc3  Qxc3
20. Bxc3 Rxa2
21. Rxa2 Bxc4
22. Rd2  Nd5
23. Nxd3 Nxc3
24. Kf2  f5
25. Rc1  Ne4+
26. fxe4 Bxd3
27. Rxc5 Bxe4
28. Rc7  Bc6
29. Kg3  Re8
30. Kf4  h6
31. Kxf5 Rxe3
32. Rd8+ Kh7
33. Rcc8 Be4+
34. Kf4  Re2
35. Rh8+ Kg6
36. Rhe8 Bd3
37. Rxe2 Bxe2
38. Rc7  
1-0