1.
e4
e6
2.
d4
d5
3.
Nc3
Bb4
4.
Ne2
dxe4
5.
a3
Be7
6.
Nxe4
Nf6
7.
N2g3
Nbd7
8.
Bd3
b6
9.
O-O
Bb7
10.
Re1
O-O
11.
Bf4
Nxe4
12.
Nxe4
Nf6
13.
Nxf6+
Bxf6
14.
c3
Rc8
15.
Qc2
g6
16.
Rad1
Qe7
17.
Be4
Bxe4
18.
Qxe4
c6
19.
Be5
Rfd8
20.
Rd3
Bxe5
21.
Qxe5
Rd5
22.
Qe4
Rcd8
23.
Red1
Qd7
24.
c4
Rd6
25.
h4
h5
26.
g3
Qe7
27.
Qe5
Qf8
28.
R1d2
R8d7
29.
Kf1
Qd8
30.
Kg1
Qf8
31.
Kf1
Rd8
32.
Kg1
Qg7
33.
Qe4
Qf6
34.
Kg2
Qe7
35.
Kg1
b5
36.
b3
bxc4
37.
bxc4
Qb7
38.
Qe5
Qa6
39.
Qc5
Qb6
40.
Qe5
Qa6
41.
Qc5
1/2-1/2
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Event
Site
Amsterdam
Date
1971.07.17
Round
5
White
Ree, Hans
Black
Result
1/2-1/2
Score
[Event "IBM"] [Site "Amsterdam"] [Date "1971.07.17"] [Round "5"] [White "Ree, Hans"] [Black "Ivkov, Borislav"] [Result "1/2-1/2"] 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. N2g3 Nbd7 8. Bd3 b6 9. O-O Bb7 10. Re1 O-O 11. Bf4 Nxe4 12. Nxe4 Nf6 13. Nxf6+ Bxf6 14. c3 Rc8 15. Qc2 g6 16. Rad1 Qe7 17. Be4 Bxe4 18. Qxe4 c6 19. Be5 Rfd8 20. Rd3 Bxe5 21. Qxe5 Rd5 22. Qe4 Rcd8 23. Red1 Qd7 24. c4 Rd6 25. h4 h5 26. g3 Qe7 27. Qe5 Qf8 28. R1d2 R8d7 29. Kf1 Qd8 30. Kg1 Qf8 31. Kf1 Rd8 32. Kg1 Qg7 33. Qe4 Qf6 34. Kg2 Qe7 35. Kg1 b5 36. b3 bxc4 37. bxc4 Qb7 38. Qe5 Qa6 39. Qc5 Qb6 40. Qe5 Qa6 41. Qc5 1/2-1/2