1.
d4
Nf6
2.
Nf3
g6
3.
Bg5
Bg7
4.
Nbd2
d5
5.
e3
O-O
6.
Bd3
c5
7.
c3
Nc6
8.
O-O
Qb6
9.
Rb1
Re8
10.
b4
cxb4
11.
cxb4
Bg4
12.
Qb3
Bxf3
13.
Nxf3
e6
14.
Rfc1
Rec8
15.
a3
Ne8
16.
Bf4
Bf8
17.
Qa2
a6
18.
Rc2
f6
19.
h4
Na7
20.
Rbc1
Rxc2
21.
Rxc2
Rc8
22.
Rxc8
Nxc8
23.
Qc2
Ne7
24.
h5
Kf7
25.
hxg6+
hxg6
26.
g4
Qc6
27.
g5
Qxc2
28.
Bxc2
Bg7
29.
gxf6
Bxf6
30.
Ng5+
Bxg5
31.
Bxg5
Nc6
32.
Bf4
Nf6
33.
Kf1
b5
34.
Bc7
Ne4
35.
Ke2
Nc3+
36.
Kd3
Na4
37.
Kd2
g5
38.
Kc1
Kf6
39.
Bd1
Kg6
40.
Kc2
Kf6
41.
Bh5
Ke7
42.
Be2
1/2-1/2
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Event
Site
Buenos Aires
Date
1978.11.08
Round
13
White
Aldrete, Jorge
Black
De Greif, Boris
Result
1/2-1/2
WhiteElo
2310
BlackElo
2335
[Event "Olympiad-23"] [Site "Buenos Aires"] [Date "1978.11.08"] [Round "13"] [White "Aldrete, Jorge"] [Black "De Greif, Boris"] [Result "1/2-1/2"] [WhiteElo "2310"] [BlackElo "2335"] 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 O-O 6. Bd3 c5 7. c3 Nc6 8. O-O Qb6 9. Rb1 Re8 10. b4 cxb4 11. cxb4 Bg4 12. Qb3 Bxf3 13. Nxf3 e6 14. Rfc1 Rec8 15. a3 Ne8 16. Bf4 Bf8 17. Qa2 a6 18. Rc2 f6 19. h4 Na7 20. Rbc1 Rxc2 21. Rxc2 Rc8 22. Rxc8 Nxc8 23. Qc2 Ne7 24. h5 Kf7 25. hxg6+ hxg6 26. g4 Qc6 27. g5 Qxc2 28. Bxc2 Bg7 29. gxf6 Bxf6 30. Ng5+ Bxg5 31. Bxg5 Nc6 32. Bf4 Nf6 33. Kf1 b5 34. Bc7 Ne4 35. Ke2 Nc3+ 36. Kd3 Na4 37. Kd2 g5 38. Kc1 Kf6 39. Bd1 Kg6 40. Kc2 Kf6 41. Bh5 Ke7 42. Be2 1/2-1/2