1.
e4
c5
2.
Nf3
d6
3.
d4
cxd4
4.
Nxd4
Nf6
5.
Nc3
a6
6.
Be2
e5
7.
Nb3
Be7
8.
O-O
Be6
9.
f4
Qc7
10.
Kh1
b5
11.
a4
b4
12.
Nd5
Bxd5
13.
exd5
O-O
14.
Bd2
a5
15.
c3
Na6
16.
cxb4
Nxb4
17.
Bxb4
axb4
18.
Bb5
Ne4
19.
Rc1
Qa7
20.
Qc2
f5
21.
Nd2
exf4
22.
Nxe4
fxe4
23.
Qxe4
Qe3
24.
Rce1
Qxe4
25.
Rxe4
Bf6
26.
Rxb4
Rfc8
27.
b3
g5
28.
g3
Be5
29.
gxf4
gxf4
30.
Bc6
Ra5
31.
Rc4
Kg7
32.
Kg2
Kf6
33.
Kf3
Ra7
34.
Rfc1
Rg8
35.
b4
Rg6
36.
Be8
Rh6
37.
Rc7
Rxc7
38.
Rxc7
Rxh2
39.
b5
Kg5
40.
Rf7
Rh3+
41.
Ke2
Re3+
42.
Kd2
1/2-1/2
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Event
Site
Amsterdam
Date
1970.07.27
Round
11
White
Black
Donner, Jan Hein
Result
1/2-1/2
Score
[Event "IBM"] [Site "Amsterdam"] [Date "1970.07.27"] [Round "11"] [White "Geller, Efim P"] [Black "Donner, Jan Hein"] [Result "1/2-1/2"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O Be6 9. f4 Qc7 10. Kh1 b5 11. a4 b4 12. Nd5 Bxd5 13. exd5 O-O 14. Bd2 a5 15. c3 Na6 16. cxb4 Nxb4 17. Bxb4 axb4 18. Bb5 Ne4 19. Rc1 Qa7 20. Qc2 f5 21. Nd2 exf4 22. Nxe4 fxe4 23. Qxe4 Qe3 24. Rce1 Qxe4 25. Rxe4 Bf6 26. Rxb4 Rfc8 27. b3 g5 28. g3 Be5 29. gxf4 gxf4 30. Bc6 Ra5 31. Rc4 Kg7 32. Kg2 Kf6 33. Kf3 Ra7 34. Rfc1 Rg8 35. b4 Rg6 36. Be8 Rh6 37. Rc7 Rxc7 38. Rxc7 Rxh2 39. b5 Kg5 40. Rf7 Rh3+ 41. Ke2 Re3+ 42. Kd2 1/2-1/2