[Event "Montreal IT"]
[Round "4"]
[Site "Montreal"]
[Date "1979.04.14"]
[White "Larsen, Bent"]
[WhiteElo "2620"]
[Black "Portisch, Lajos"]
[BlackElo "2640"]
[Result "0-1"]
[ECO "A22"]
[Opening "English Opening"]
 1. c4   e5
 2. Nc3  Nf6
 3. Nf3  Nc6
 4. d3   d6
 5. g3   g6
 6. Bg2  Bg7
 7. Rb1  a5
 8. a3   Nd4
 9. b4   axb4
10. axb4 c6
11. b5   O-O
12. bxc6 bxc6
13. Nxd4 exd4
14. Ne4  Nxe4
15. Bxe4 Ra6
16. O-O  Bg4
17. Bf4  f5
18. Bg2  g5
19. Bd2  f4
20. Rb7  Qc8
21. Qb1  Be5
22. gxf4 gxf4
23. Kh1  Ra1
24. Qxa1 Qxb7
25. Be4  Kh8
26. Rg1  Bxe2
27. Qe1  Bh5
28. c5   Rg8
29. Rxg8+ Kxg8
30. cxd6 Bxd6
31. Qc1  f3
32. Bxc6 Qc7
33. Qc4+ Bf7
34. Qb5  Bf4
35. Bb4  Qc8
36. Qc5  Bh6
37. Bxf3 Qh3
38. Bg2  Qxd3
39. Qc8+ Kg7
0-1