1.
c4
e5
2.
Nc3
Nf6
3.
g3
d5
4.
cxd5
Nxd5
5.
Bg2
Be6
6.
Nf3
Nc6
7.
O-O
Nb6
8.
d3
Be7
9.
Be3
O-O
10.
Qc1
f5
11.
Rd1
Kh8
12.
d4
e4
13.
Ne5
Nb4
14.
f3
exf3
15.
exf3
c6
16.
Bf2
Bg8
17.
a3
N4d5
18.
Qc2
Bd6
19.
Re1
Qf6
20.
Re2
Rae8
21.
Rae1
Re7
22.
Nb1
Rfe8
23.
f4
h6
24.
Nd2
g5
25.
fxg5
hxg5
26.
Ndc4
Nxc4
27.
Nxc4
Rxe2
28.
Rxe2
Rxe2
29.
Qxe2
Bc7
30.
Qe8
Qf7
31.
Qc8
Nb6
32.
Nxb6
Bxb6
33.
Bf1
Qd5
34.
Qxb7
Bxd4
35.
Qb4
Bxf2+
36.
Kxf2
Qe5
37.
Qc3
Qxc3
38.
bxc3
Kg7
39.
h4
Kh6
40.
Be2
c5
41.
hxg5+
Kxg5
42.
Ke3
1/2-1/2
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Event
Site
Palma de Mallorca
Date
1970.12.03
Round
18
White
Black
Addison, William G
Result
1/2-1/2
[Event "Interzonal-08"] [Site "Palma de Mallorca"] [Date "1970.12.03"] [Round "18"] [White "Ivkov, Borislav"] [Black "Addison, William G"] [Result "1/2-1/2"] 1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Be6 6. Nf3 Nc6 7. O-O Nb6 8. d3 Be7 9. Be3 O-O 10. Qc1 f5 11. Rd1 Kh8 12. d4 e4 13. Ne5 Nb4 14. f3 exf3 15. exf3 c6 16. Bf2 Bg8 17. a3 N4d5 18. Qc2 Bd6 19. Re1 Qf6 20. Re2 Rae8 21. Rae1 Re7 22. Nb1 Rfe8 23. f4 h6 24. Nd2 g5 25. fxg5 hxg5 26. Ndc4 Nxc4 27. Nxc4 Rxe2 28. Rxe2 Rxe2 29. Qxe2 Bc7 30. Qe8 Qf7 31. Qc8 Nb6 32. Nxb6 Bxb6 33. Bf1 Qd5 34. Qxb7 Bxd4 35. Qb4 Bxf2+ 36. Kxf2 Qe5 37. Qc3 Qxc3 38. bxc3 Kg7 39. h4 Kh6 40. Be2 c5 41. hxg5+ Kxg5 42. Ke3 1/2-1/2