1.
c4
Nf6
2.
d4
c5
3.
d5
d6
4.
Nc3
g6
5.
e4
Bg7
6.
Be2
O-O
7.
Nf3
e6
8.
O-O
exd5
9.
cxd5
Re8
10.
Nd2
Na6
11.
f3
Nc7
12.
a4
Nd7
13.
Nc4
Ne5
14.
Ne3
f5
15.
f4
Nf7
16.
exf5
gxf5
17.
Nc4
b6
18.
Be3
Bb7
19.
Qd2
Bxc3
20.
bxc3
Nxd5
21.
Bf3
Nxe3
22.
Nxe3
Bxf3
23.
Rxf3
Nh6
24.
Nxf5
Nxf5
25.
Qd5+
Kh8
26.
Qxf5
Qe7
27.
Rd1
Rad8
28.
c4
Qe6
29.
Qd3
Qg6
30.
f5
Qf6
31.
Re3
Re5
32.
Rxe5
Qxe5
33.
Qf3
Re8
34.
f6
Rf8
35.
f7
Kg7
36.
Rf1
Qe6
37.
Qg3+
Kh8
38.
Qc3+
Qe5
39.
Qf3
Kg7
40.
h3
h6
41.
Kh1
1/2-1/2
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Event
Site
Amsterdam
Date
1969.??.??
Round
1
White
Donner, Jan Hein
Black
Ree, Hans
Result
1/2-1/2
Score
[Event "IBM"] [Site "Amsterdam"] [Date "1969.??.??"] [Round "1"] [White "Donner, Jan Hein"] [Black "Ree, Hans"] [Result "1/2-1/2"] 1. c4 Nf6 2. d4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Be2 O-O 7. Nf3 e6 8. O-O exd5 9. cxd5 Re8 10. Nd2 Na6 11. f3 Nc7 12. a4 Nd7 13. Nc4 Ne5 14. Ne3 f5 15. f4 Nf7 16. exf5 gxf5 17. Nc4 b6 18. Be3 Bb7 19. Qd2 Bxc3 20. bxc3 Nxd5 21. Bf3 Nxe3 22. Nxe3 Bxf3 23. Rxf3 Nh6 24. Nxf5 Nxf5 25. Qd5+ Kh8 26. Qxf5 Qe7 27. Rd1 Rad8 28. c4 Qe6 29. Qd3 Qg6 30. f5 Qf6 31. Re3 Re5 32. Rxe5 Qxe5 33. Qf3 Re8 34. f6 Rf8 35. f7 Kg7 36. Rf1 Qe6 37. Qg3+ Kh8 38. Qc3+ Qe5 39. Qf3 Kg7 40. h3 h6 41. Kh1 1/2-1/2