1.
c4
Nf6
2.
Nf3
g6
3.
Nc3
d5
4.
cxd5
Nxd5
5.
Qa4+
Bd7
6.
Qc2
Nb6
7.
g3
Bg7
8.
Bg2
Nc6
9.
d3
O-O
10.
O-O
Nc8
11.
Ne4
Nd6
12.
Nc5
Be8
13.
Bd2
b6
14.
Nb3
Rc8
15.
Rac1
a5
16.
Bc3
Nb4
17.
Qb1
c5
18.
Bxg7
Kxg7
19.
Nbd2
Bc6
20.
b3
Nf5
21.
a3
Na6
22.
e3
f6
23.
Rfd1
Qd7
1/2-1/2
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Event
Site
Wijk aan Zee
Date
1973.01.18
Round
4
White
Black
Hartoch, Robert G
Result
1/2-1/2
[Event "Hoogovens"] [Site "Wijk aan Zee"] [Date "1973.01.18"] [Round "4"] [White "Andersson, Ulf"] [Black "Hartoch, Robert G"] [Result "1/2-1/2"] 1. c4 Nf6 2. Nf3 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qa4+ Bd7 6. Qc2 Nb6 7. g3 Bg7 8. Bg2 Nc6 9. d3 O-O 10. O-O Nc8 11. Ne4 Nd6 12. Nc5 Be8 13. Bd2 b6 14. Nb3 Rc8 15. Rac1 a5 16. Bc3 Nb4 17. Qb1 c5 18. Bxg7 Kxg7 19. Nbd2 Bc6 20. b3 Nf5 21. a3 Na6 22. e3 f6 23. Rfd1 Qd7 1/2-1/2