1.
c4
e5
2.
Nc3
Nf6
3.
Nf3
Nc6
4.
g3
d5
5.
cxd5
Nxd5
6.
Bg2
Nb6
7.
O-O
Be7
8.
d3
O-O
9.
a3
Bg4
10.
b4
a6
11.
h3
Bf5
12.
Bb2
Qd7
13.
Kh2
Rad8
14.
Rc1
Bf6
15.
Nd2
Nd4
16.
Nce4
c6
17.
Nxf6+
gxf6
18.
Ne4
Qe7
19.
e3
Ne6
20.
Qf3
Bxe4
21.
Qxe4
Ng5
22.
Qg4
Qd7
23.
Qh5
Qxd3
24.
f4
Ne6
25.
fxe5
Qxe3
26.
exf6
Rd2
27.
Rce1
Nd5
28.
Bc1
Rxg2+
29.
Kxg2
Nxf6
30.
Qf5
1-0
Opening Explorer
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Site
Mar del Plata
Date
1969.04.10
Round
18
White
Black
Van Riemsdijk, Herman Claudius
Result
1-0
[Event "Zonal-8 South America (MdP-28)"] [Site "Mar del Plata"] [Date "1969.04.10"] [Round "18"] [White "Najdorf, Miguel"] [Black "Van Riemsdijk, Herman Claudius"] [Result "1-0"] 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. d3 O-O 9. a3 Bg4 10. b4 a6 11. h3 Bf5 12. Bb2 Qd7 13. Kh2 Rad8 14. Rc1 Bf6 15. Nd2 Nd4 16. Nce4 c6 17. Nxf6+ gxf6 18. Ne4 Qe7 19. e3 Ne6 20. Qf3 Bxe4 21. Qxe4 Ng5 22. Qg4 Qd7 23. Qh5 Qxd3 24. f4 Ne6 25. fxe5 Qxe3 26. exf6 Rd2 27. Rce1 Nd5 28. Bc1 Rxg2+ 29. Kxg2 Nxf6 30. Qf5 1-0