1.
c4
e5
2.
b3
Nc6
3.
Bb2
Nf6
4.
e3
Be7
5.
Nf3
e4
6.
Ng1
O-O
7.
Nc3
d5
8.
cxd5
Nb4
9.
a3
Nbxd5
10.
Nge2
Bf5
11.
Ng3
Bg6
12.
Be2
c6
13.
O-O
Re8
14.
Rc1
Bd6
15.
b4
Nb6
16.
Qc2
h5
17.
Rfd1
Ng4
18.
Bxg4
hxg4
19.
Na4
Nxa4
20.
Qxa4
Qg5
21.
Qb3
Rad8
22.
Bd4
a6
23.
a4
Kh7
24.
Qb2
f6
25.
Bc5
Be5
26.
Bd4
Bd6
27.
Bc5
Bc7
28.
Bd4
Rd5
29.
Rc5
Bd6
30.
Rxd5
Qxd5
31.
Rc1
Rd8
32.
Rb1
Bc7
33.
Rd1
Bd6
34.
Rb1
Be7
35.
Rc1
Rd7
36.
Ne2
Bf5
37.
Nf4
Qf7
38.
b5
cxb5
39.
axb5
a5
40.
Bb6
Bb4
41.
Bd4
Qe7
42.
Rc4
Qf7
43.
Rc2
Bd6
44.
Ne2
Be6
45.
Bc5
Be5
46.
Bd4
Bc4
47.
Bxe5
Bxe2
48.
Bd4
Rd5
49.
b6
Rb5
50.
Qc1
Bd3
51.
Rb2
Rf5
0-1
Opening Explorer
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Event
Site
Baerum
Date
1980.??.??
Round
8
White
Heiberg, Thomas
Black
Mariotti, Sergio
Result
0-1
BlackElo
2500
Score
[Event "Baerum"] [Site "Baerum"] [Date "1980.??.??"] [Round "8"] [White "Heiberg, Thomas"] [Black "Mariotti, Sergio"] [Result "0-1"] [BlackElo "2500"] 1. c4 e5 2. b3 Nc6 3. Bb2 Nf6 4. e3 Be7 5. Nf3 e4 6. Ng1 O-O 7. Nc3 d5 8. cxd5 Nb4 9. a3 Nbxd5 10. Nge2 Bf5 11. Ng3 Bg6 12. Be2 c6 13. O-O Re8 14. Rc1 Bd6 15. b4 Nb6 16. Qc2 h5 17. Rfd1 Ng4 18. Bxg4 hxg4 19. Na4 Nxa4 20. Qxa4 Qg5 21. Qb3 Rad8 22. Bd4 a6 23. a4 Kh7 24. Qb2 f6 25. Bc5 Be5 26. Bd4 Bd6 27. Bc5 Bc7 28. Bd4 Rd5 29. Rc5 Bd6 30. Rxd5 Qxd5 31. Rc1 Rd8 32. Rb1 Bc7 33. Rd1 Bd6 34. Rb1 Be7 35. Rc1 Rd7 36. Ne2 Bf5 37. Nf4 Qf7 38. b5 cxb5 39. axb5 a5 40. Bb6 Bb4 41. Bd4 Qe7 42. Rc4 Qf7 43. Rc2 Bd6 44. Ne2 Be6 45. Bc5 Be5 46. Bd4 Bc4 47. Bxe5 Bxe2 48. Bd4 Rd5 49. b6 Rb5 50. Qc1 Bd3 51. Rb2 Rf5 0-1