1.
e4
c5
2.
Nc3
d6
3.
g3
g6
4.
Bg2
Bg7
5.
d3
Nc6
6.
f4
e6
7.
Nf3
Nge7
8.
O-O
O-O
9.
g4
d5
10.
e5
a6
11.
Qe1
Ra7
12.
Bd2
b6
13.
Ne2
Rc7
14.
c3
d4
15.
c4
f6
16.
exf6
Bxf6
17.
Ng3
Bg7
18.
h3
Nb4
19.
Bxb4
cxb4
20.
Ng5
e5
21.
fxe5
h6
22.
Nf3
Nc6
23.
Qe4
Qe8
24.
Nxd4
Nxd4
25.
Qxd4
Rxf1+
26.
Nxf1
Rc5
27.
Bd5+
Kh8
28.
Re1
Rc7
29.
Qxb6
Re7
30.
d4
h5
31.
Qxb4
hxg4
32.
hxg4
Bh6
33.
Qc3
Bf4
34.
Qf3
g5
35.
Ng3
Rh7
36.
Kg2
Qf8
37.
Nh5
Qb4
38.
Re2
Qa4
39.
Nxf4
gxf4
40.
Qxf4
Qe8
41.
Qf6+
1-0
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Event
Site
Buenos Aires
Date
1978.11.06
Round
11
White
Roos, Louis
Black
Pelaez, Jorge
Result
1-0
Score
[Event "Olympiad-23"] [Site "Buenos Aires"] [Date "1978.11.06"] [Round "11"] [White "Roos, Louis"] [Black "Pelaez, Jorge"] [Result "1-0"] 1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. d3 Nc6 6. f4 e6 7. Nf3 Nge7 8. O-O O-O 9. g4 d5 10. e5 a6 11. Qe1 Ra7 12. Bd2 b6 13. Ne2 Rc7 14. c3 d4 15. c4 f6 16. exf6 Bxf6 17. Ng3 Bg7 18. h3 Nb4 19. Bxb4 cxb4 20. Ng5 e5 21. fxe5 h6 22. Nf3 Nc6 23. Qe4 Qe8 24. Nxd4 Nxd4 25. Qxd4 Rxf1+ 26. Nxf1 Rc5 27. Bd5+ Kh8 28. Re1 Rc7 29. Qxb6 Re7 30. d4 h5 31. Qxb4 hxg4 32. hxg4 Bh6 33. Qc3 Bf4 34. Qf3 g5 35. Ng3 Rh7 36. Kg2 Qf8 37. Nh5 Qb4 38. Re2 Qa4 39. Nxf4 gxf4 40. Qxf4 Qe8 41. Qf6+ 1-0