1.
c4
c5
2.
Nf3
Nf6
3.
Nc3
Nc6
4.
e3
d5
5.
d4
e6
6.
cxd5
exd5
7.
Be2
cxd4
8.
Nxd4
Bd6
9.
O-O
O-O
10.
b3
Be5
11.
Nxc6
bxc6
12.
Bb2
Qd6
13.
g3
Bh3
14.
Re1
Rfe8
15.
Bf3
Rad8
16.
Rc1
c5
17.
Ba3
Bxc3
18.
Rxc3
d4
19.
exd4
Qxd4
20.
Rxe8+
Rxe8
21.
Rc1
Ne4
22.
Qe2
Re6
23.
Bb2
Qb4
24.
a3
Qb7
25.
Rd1
h6
26.
Qd3
Qe7
27.
Qd8+
Qxd8
28.
Rxd8+
Kh7
29.
Bxe4+
Rxe4
30.
Bc3
Re2
31.
Rd1
Rc2
32.
Be5
Ra2
33.
Bd6
1/2-1/2
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Event
Site
Amsterdam
Date
1980.06.??
White
Rogoff, Kenneth
Black
Ligterink, Gert
Result
1/2-1/2
WhiteElo
2520
BlackElo
2455
[Event "IBM-20 Grootmeestergroep"] [Site "Amsterdam"] [Date "1980.06.??"] [Round "?"] [White "Rogoff, Kenneth"] [Black "Ligterink, Gert"] [Result "1/2-1/2"] [WhiteElo "2520"] [BlackElo "2455"] 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. e3 d5 5. d4 e6 6. cxd5 exd5 7. Be2 cxd4 8. Nxd4 Bd6 9. O-O O-O 10. b3 Be5 11. Nxc6 bxc6 12. Bb2 Qd6 13. g3 Bh3 14. Re1 Rfe8 15. Bf3 Rad8 16. Rc1 c5 17. Ba3 Bxc3 18. Rxc3 d4 19. exd4 Qxd4 20. Rxe8+ Rxe8 21. Rc1 Ne4 22. Qe2 Re6 23. Bb2 Qb4 24. a3 Qb7 25. Rd1 h6 26. Qd3 Qe7 27. Qd8+ Qxd8 28. Rxd8+ Kh7 29. Bxe4+ Rxe4 30. Bc3 Re2 31. Rd1 Rc2 32. Be5 Ra2 33. Bd6 1/2-1/2