1.
d4
d5
2.
c4
dxc4
3.
Nf3
Nf6
4.
e3
Bg4
5.
h3
Bh5
6.
Bxc4
e6
7.
O-O
a6
8.
Be2
c5
9.
Nbd2
Nc6
10.
dxc5
Bxc5
11.
a3
O-O
12.
b4
Ba7
13.
Bb2
Qe7
14.
Ne5
Nxe5
15.
Bxe5
Bxe2
16.
Qxe2
Rfd8
17.
Rac1
Rac8
18.
Nb3
Nd5
19.
e4
Nf6
20.
Rfd1
Ne8
21.
Rxc8
Rxc8
22.
Bf4
h6
23.
Be3
Bxe3
24.
Qxe3
Nd6
25.
Nc5
a5
26.
Qd3
axb4
27.
axb4
Ne8
28.
e5
b6
29.
Na6
Qg5
30.
Qd7
Ra8
31.
b5
g6
32.
Qd4
Ng7
33.
Qxb6
Qxe5
34.
Qc6
Rf8
35.
b6
Qe2
36.
Ra1
Nf5
37.
b7
Ne7
38.
Qc7
1-0
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Event
Site
Santa Monica
Date
1966.08.04
Round
12
White
Black
Donner, Jan Hein
Result
1-0
Score
[Event "Piatigorsky-Cup 2nd"] [Site "Santa Monica"] [Date "1966.08.04"] [Round "12"] [White "Najdorf, Miguel"] [Black "Donner, Jan Hein"] [Result "1-0"] 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. h3 Bh5 6. Bxc4 e6 7. O-O a6 8. Be2 c5 9. Nbd2 Nc6 10. dxc5 Bxc5 11. a3 O-O 12. b4 Ba7 13. Bb2 Qe7 14. Ne5 Nxe5 15. Bxe5 Bxe2 16. Qxe2 Rfd8 17. Rac1 Rac8 18. Nb3 Nd5 19. e4 Nf6 20. Rfd1 Ne8 21. Rxc8 Rxc8 22. Bf4 h6 23. Be3 Bxe3 24. Qxe3 Nd6 25. Nc5 a5 26. Qd3 axb4 27. axb4 Ne8 28. e5 b6 29. Na6 Qg5 30. Qd7 Ra8 31. b5 g6 32. Qd4 Ng7 33. Qxb6 Qxe5 34. Qc6 Rf8 35. b6 Qe2 36. Ra1 Nf5 37. b7 Ne7 38. Qc7 1-0