1.
d4
g6
2.
c4
Bg7
3.
Nc3
d6
4.
e4
Nf6
5.
Be2
O-O
6.
Nf3
Bg4
7.
O-O
Nfd7
8.
Be3
e6
9.
Ne1
Bxe2
10.
Qxe2
Nc6
11.
Qd2
e5
12.
d5
Nd4
13.
Nc2
Nxc2
14.
Qxc2
f5
15.
f3
Rf7
16.
b4
Bf8
17.
Rac1
Be7
18.
Qd2
Nb6
19.
Nd1
c5
20.
dxc6
bxc6
21.
Nb2
d5
22.
c5
d4
23.
Bh6
Nd7
24.
Nc4
f4
25.
g3
Bg5
26.
Bxg5
Qxg5
27.
Kh1
Qe7
28.
g4
Kg7
29.
Qd3
a6
30.
a4
Ra7
31.
Nd6
Rf8
32.
Qc4
Rfa8
33.
Rb1
Rc7
34.
Rfc1
Raa7
35.
Qe2
Ra8
36.
Nc4
Raa7
37.
Kg2
Qe6
38.
Qd3
Rcb7
39.
Qd2
Rc7
40.
Rb2
Nb8
41.
h4
Qe7
42.
Rh1
Qe6
43.
Rc1
Qe7
44.
Rh1
Qe6
45.
Qd3
Nd7
46.
Na5
Rc8
47.
g5
h5
1/2-1/2
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Event
Site
Leiden
Date
1970.05.??
Round
4
White
Donner, Jan Hein
Black
Result
1/2-1/2
Score
[Event "Leiden"] [Site "Leiden"] [Date "1970.05.??"] [Round "4"] [White "Donner, Jan Hein"] [Black "Botvinnik, Mikhail"] [Result "1/2-1/2"] 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nf6 5. Be2 O-O 6. Nf3 Bg4 7. O-O Nfd7 8. Be3 e6 9. Ne1 Bxe2 10. Qxe2 Nc6 11. Qd2 e5 12. d5 Nd4 13. Nc2 Nxc2 14. Qxc2 f5 15. f3 Rf7 16. b4 Bf8 17. Rac1 Be7 18. Qd2 Nb6 19. Nd1 c5 20. dxc6 bxc6 21. Nb2 d5 22. c5 d4 23. Bh6 Nd7 24. Nc4 f4 25. g3 Bg5 26. Bxg5 Qxg5 27. Kh1 Qe7 28. g4 Kg7 29. Qd3 a6 30. a4 Ra7 31. Nd6 Rf8 32. Qc4 Rfa8 33. Rb1 Rc7 34. Rfc1 Raa7 35. Qe2 Ra8 36. Nc4 Raa7 37. Kg2 Qe6 38. Qd3 Rcb7 39. Qd2 Rc7 40. Rb2 Nb8 41. h4 Qe7 42. Rh1 Qe6 43. Rc1 Qe7 44. Rh1 Qe6 45. Qd3 Nd7 46. Na5 Rc8 47. g5 h5 1/2-1/2