[Event "Moscow IT"]
[Round "11"]
[Site "Moscow"]
[Date "1981.04.20"]
[White "Timman, Jan H"]
[WhiteElo "2620"]
[Black "Portisch, Lajos"]
[BlackElo "2650"]
[Result "1-0"]
[ECO "C42"]
[Opening "Petrov's Defence, including Marshall Trap"]
 1. e4   e5
 2. Nf3  Nf6
 3. Nxe5 d6
 4. Nf3  Nxe4
 5. d4   d5
 6. Bd3  Be7
 7. O-O  Nc6
 8. Re1  Bf5
 9. Bb5  O-O
10. Bxc6 bxc6
11. Ne5  Bh4
12. Be3  Qd6
13. Qh5  Qf6
14. Nf3  g5
15. Nbd2 Bg6
16. Qh6  Nd6
17. Bxg5 Bxg5
18. Qxg5 Qxg5
19. Nxg5 Rab8
20. b3   Nb5
21. c3   Nxc3
22. Ngf3 Rfe8
23. Ne5  Re6
24. Re3  Nb5
25. Nd7  Rd8
26. Nc5  Ree8
27. Nf3  f6
28. Rae1 Kf7
29. g4   Be4
30. Nxe4 dxe4
31. Rxe4 Rxe4
32. Rxe4 Nc3
33. Re1  Nxa2
34. Ra1  Nc3
35. Rxa7 Nb5
36. Ra4  Ke6
37. Rc4  Kd6
38. Nh4  Rg8
39. Nf5+ Kd7
40. f3   h5
41. h3   hxg4
42. fxg4 Nd6
43. Nxd6 cxd6
44. Kh2  f5
45. gxf5 Rf8
46. d5   cxd5
47. Rf4  Ke7
48. f6+  Kf7
49. Kg3  Rb8
50. b4   d4
51. Rxd4 Kxf6
52. h4   Ke5
53. Rg4  d5
54. h5   d4
55. h6   Kd5
56. h7   Rh8
57. Rg7  Kc4
58. Rb7  d3
59. Kf2  Re8
60. Rd7  Kc3
61. Re7  Rd8
62. Ke1  Kxb4
63. Rc7  Kb5
64. Kd2  Kb6
65. Rg7  
1-0