1.
c4
Nf6
2.
g3
c6
3.
Bg2
d5
4.
Nf3
Bg4
5.
b3
e6
6.
O-O
Nbd7
7.
Bb2
Be7
8.
d3
O-O
9.
Nbd2
a5
10.
a3
Re8
11.
h3
Bh5
12.
Qc2
Bf8
13.
e4
dxe4
14.
Nxe4
Nxe4
15.
dxe4
e5
16.
Bc3
Qb6
17.
Qb2
f6
18.
b4
axb4
19.
axb4
c5
20.
b5
Bd6
21.
Qd2
Bc7
22.
Qd5+
Kf8
23.
Rfd1
Red8
24.
Rxa8
Rxa8
25.
Qd3
Kg8
26.
Rf1
Nf8
27.
Nh4
Rd8
28.
Qe3
Bf7
29.
Qe2
Qe6
30.
Rc1
Qxc4
31.
Qxc4
Bxc4
32.
Bxe5
Bxe5
33.
Rxc4
Rd1+
34.
Bf1
Nd7
35.
Nf5
1/2-1/2
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Event
Site
Amsterdam
Date
1968.??.??
Round
4
White
Ree, Hans
Black
Jongsma, Alexander
Result
1/2-1/2
Score
[Event "IBM"] [Site "Amsterdam"] [Date "1968.??.??"] [Round "4"] [White "Ree, Hans"] [Black "Jongsma, Alexander"] [Result "1/2-1/2"] 1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bg4 5. b3 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 O-O 9. Nbd2 a5 10. a3 Re8 11. h3 Bh5 12. Qc2 Bf8 13. e4 dxe4 14. Nxe4 Nxe4 15. dxe4 e5 16. Bc3 Qb6 17. Qb2 f6 18. b4 axb4 19. axb4 c5 20. b5 Bd6 21. Qd2 Bc7 22. Qd5+ Kf8 23. Rfd1 Red8 24. Rxa8 Rxa8 25. Qd3 Kg8 26. Rf1 Nf8 27. Nh4 Rd8 28. Qe3 Bf7 29. Qe2 Qe6 30. Rc1 Qxc4 31. Qxc4 Bxc4 32. Bxe5 Bxe5 33. Rxc4 Rd1+ 34. Bf1 Nd7 35. Nf5 1/2-1/2