1.
d4
Nf6
2.
c4
g6
3.
Nf3
Bg7
4.
g3
d5
5.
cxd5
Nxd5
6.
Bg2
c6
7.
O-O
O-O
8.
Nc3
Nb6
9.
e3
a5
10.
b3
Na6
11.
Bb2
Bf5
12.
h3
a4
13.
e4
Be6
14.
Ne2
Nc7
15.
Rb1
Qc8
16.
Nf4
axb3
17.
axb3
Ra2
18.
Qc2
Qd7
19.
Ra1
Rfa8
20.
Rxa2
Rxa2
21.
Ra1
Rxa1+
22.
Bxa1
Qd6
23.
Bb2
Bc8
24.
Bf1
Ne6
25.
Ne2
h6
26.
Kh2
Ng5
27.
Nd2
e5
28.
Qc5
Qd8
29.
Qb4
exd4
30.
Bxd4
Bxd4
31.
Nxd4
Nd7
32.
Qd6
Qf6
33.
Qxf6
Nxf6
34.
Bg2
Ne6
35.
Ne2
Nc5
36.
f4
Ne8
37.
Kg1
Nc7
38.
Kf2
Be6
39.
Nd4
Kf8
40.
Ke3
Ke7
1/2-1/2
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Event
Site
Amsterdam
Date
1969.??.??
Round
12
White
Black
Result
1/2-1/2
Score
[Event "IBM"] [Site "Amsterdam"] [Date "1969.??.??"] [Round "12"] [White "Portisch, Lajos"] [Black "Stein, Leonid"] [Result "1/2-1/2"] 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 c6 7. O-O O-O 8. Nc3 Nb6 9. e3 a5 10. b3 Na6 11. Bb2 Bf5 12. h3 a4 13. e4 Be6 14. Ne2 Nc7 15. Rb1 Qc8 16. Nf4 axb3 17. axb3 Ra2 18. Qc2 Qd7 19. Ra1 Rfa8 20. Rxa2 Rxa2 21. Ra1 Rxa1+ 22. Bxa1 Qd6 23. Bb2 Bc8 24. Bf1 Ne6 25. Ne2 h6 26. Kh2 Ng5 27. Nd2 e5 28. Qc5 Qd8 29. Qb4 exd4 30. Bxd4 Bxd4 31. Nxd4 Nd7 32. Qd6 Qf6 33. Qxf6 Nxf6 34. Bg2 Ne6 35. Ne2 Nc5 36. f4 Ne8 37. Kg1 Nc7 38. Kf2 Be6 39. Nd4 Kf8 40. Ke3 Ke7 1/2-1/2