1.
d4
Nf6
2.
c4
g6
3.
Nc3
Bg7
4.
g3
O-O
5.
Bg2
d6
6.
Nf3
Nbd7
7.
O-O
Rb8
8.
Rb1
b6
9.
b3
c5
10.
d5
Ng4
11.
Bb2
f5
12.
Nb5
Nde5
13.
Nxe5
Nxe5
14.
Nxa7
Ra8
15.
Nxc8
Qxc8
16.
a4
f4
17.
Qc2
Qg4
18.
f3
Qg5
19.
Bc1
Qh6
20.
Bxf4
Rxf4
21.
gxf4
Qxf4
22.
Qe4
Qxe4
23.
fxe4
Ng4
24.
e3
Nxe3
25.
Rf3
Bd4
26.
Kh1
Kg7
27.
h3
h5
28.
Re1
Nxg2
1/2-1/2
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Event
Site
Detroit East
Date
1983.??.??
White
Cevallos, G
Black
Jonik, H
Result
1/2-1/2
[Event "Detroit East op"] [Site "Detroit East"] [Date "1983.??.??"] [Round "?"] [White "Cevallos, G"] [Black "Jonik, H"] [Result "1/2-1/2"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O Rb8 8. Rb1 b6 9. b3 c5 10. d5 Ng4 11. Bb2 f5 12. Nb5 Nde5 13. Nxe5 Nxe5 14. Nxa7 Ra8 15. Nxc8 Qxc8 16. a4 f4 17. Qc2 Qg4 18. f3 Qg5 19. Bc1 Qh6 20. Bxf4 Rxf4 21. gxf4 Qxf4 22. Qe4 Qxe4 23. fxe4 Ng4 24. e3 Nxe3 25. Rf3 Bd4 26. Kh1 Kg7 27. h3 h5 28. Re1 Nxg2 1/2-1/2