1.
c4
Nc6
2.
Nc3
e5
3.
g3
g6
4.
Bg2
Bg7
5.
e4
d6
6.
d3
Nh6
7.
Nge2
O-O
8.
O-O
f5
9.
f4
fxe4
10.
dxe4
exf4
11.
gxf4
Qh4
12.
Qd3
Bg4
13.
h3
Nb4
14.
Qg3
Qxg3
15.
Nxg3
Be6
16.
Nd5
Na6
17.
Rb1
c6
18.
Ne3
Nc5
19.
f5
gxf5
20.
exf5
Bd7
21.
b4
Nd3
22.
Rd1
1/2-1/2
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Event
Site
Lincoln
Date
1969.08.18
Round
8
White
Stoyko, Stephen E
Black
Chalker, Robert P
Result
1/2-1/2
[Event "US Open-70"] [Site "Lincoln"] [Date "1969.08.18"] [Round "8"] [White "Stoyko, Stephen E"] [Black "Chalker, Robert P"] [Result "1/2-1/2"] 1. c4 Nc6 2. Nc3 e5 3. g3 g6 4. Bg2 Bg7 5. e4 d6 6. d3 Nh6 7. Nge2 O-O 8. O-O f5 9. f4 fxe4 10. dxe4 exf4 11. gxf4 Qh4 12. Qd3 Bg4 13. h3 Nb4 14. Qg3 Qxg3 15. Nxg3 Be6 16. Nd5 Na6 17. Rb1 c6 18. Ne3 Nc5 19. f5 gxf5 20. exf5 Bd7 21. b4 Nd3 22. Rd1 1/2-1/2