1.
c4
Nf6
2.
Nf3
c5
3.
g3
d5
4.
cxd5
Nxd5
5.
Bg2
g6
6.
d4
Bg7
7.
O-O
O-O
8.
a3
cxd4
9.
Nxd4
Qb6
10.
Bxd5
Bxd4
11.
Qb3
Qxb3
12.
Bxb3
Nc6
13.
Kg2
Rd8
14.
Nc3
Bf5
15.
e4
Bxc3
16.
exf5
Bf6
17.
fxg6
hxg6
18.
Rb1
Rac8
19.
Be3
Na5
20.
Ba2
b6
21.
b4
Nc4
22.
Bxc4
Rxc4
23.
a4
Rd5
24.
Rfc1
1/2-1/2
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Event
Site
Riga
Date
1958.??.??
Round
11
White
Petersons, Andrejs
Black
Klavins, Janis
Result
1/2-1/2
[Event "Riga-ch"] [Site "Riga"] [Date "1958.??.??"] [Round "11"] [White "Petersons, Andrejs"] [Black "Klavins, Janis"] [Result "1/2-1/2"] 1. c4 Nf6 2. Nf3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 g6 6. d4 Bg7 7. O-O O-O 8. a3 cxd4 9. Nxd4 Qb6 10. Bxd5 Bxd4 11. Qb3 Qxb3 12. Bxb3 Nc6 13. Kg2 Rd8 14. Nc3 Bf5 15. e4 Bxc3 16. exf5 Bf6 17. fxg6 hxg6 18. Rb1 Rac8 19. Be3 Na5 20. Ba2 b6 21. b4 Nc4 22. Bxc4 Rxc4 23. a4 Rd5 24. Rfc1 1/2-1/2