1.
d4
Nf6
2.
c4
e5
3.
dxe5
Ne4
4.
Nf3
Bb4+
5.
Nbd2
Nc6
6.
a3
Bxd2+
7.
Bxd2
Qe7
8.
Bf4
g5
9.
Qd5
gxf4
10.
Qxe4
d6
11.
Qxf4
dxe5
12.
Qg5
e4
13.
Qg7
Rf8
14.
Ng5
Bf5
15.
Nxh7
Bxh7
16.
Qxh7
O-O-O
17.
g3
Nd4
18.
O-O-O
Qe5
19.
Bg2
f5
20.
e3
Nb3+
21.
Kc2
Nd2
22.
Bh3
Kb8
23.
Bf1
Rd6
24.
Be2
Rfd8
25.
Qh4
Qa5
26.
Qe7
a6
27.
h4
Qa4+
28.
Kc1
Qb3
29.
h5
Qa2
30.
Kc2
Qb3+
31.
Kc1
R8d7
32.
Qe8+
Ka7
33.
Qe5
Qa2
34.
Kc2
Qb3+
1/2-1/2
Opening Explorer
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Site
Siegen
Date
1970.09.08
Round
4
White
Vasquez, Julio E
Black
Yabra, Frederico
Result
1/2-1/2
[Event "Olympiad-19 Preliminaries A"] [Site "Siegen"] [Date "1970.09.08"] [Round "4"] [White "Vasquez, Julio E"] [Black "Yabra, Frederico"] [Result "1/2-1/2"] 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Nf3 Bb4+ 5. Nbd2 Nc6 6. a3 Bxd2+ 7. Bxd2 Qe7 8. Bf4 g5 9. Qd5 gxf4 10. Qxe4 d6 11. Qxf4 dxe5 12. Qg5 e4 13. Qg7 Rf8 14. Ng5 Bf5 15. Nxh7 Bxh7 16. Qxh7 O-O-O 17. g3 Nd4 18. O-O-O Qe5 19. Bg2 f5 20. e3 Nb3+ 21. Kc2 Nd2 22. Bh3 Kb8 23. Bf1 Rd6 24. Be2 Rfd8 25. Qh4 Qa5 26. Qe7 a6 27. h4 Qa4+ 28. Kc1 Qb3 29. h5 Qa2 30. Kc2 Qb3+ 31. Kc1 R8d7 32. Qe8+ Ka7 33. Qe5 Qa2 34. Kc2 Qb3+ 1/2-1/2