1.
d4
Nf6
2.
c4
e6
3.
Nc3
Bb4
4.
a3
Bxc3+
5.
bxc3
c5
6.
e3
b6
7.
a4
Nc6
8.
Ba3
d6
9.
Nf3
O-O
10.
Bd3
Ba6
11.
Nd2
Na5
12.
O-O
Rc8
13.
Qe2
Re8
14.
f3
Re7
15.
Rfc1
Rec7
16.
e4
cxd4
17.
cxd4
e5
18.
d5
Nb7
19.
Qf1
Nd7
20.
Bb4
Ndc5
21.
Bc2
Na5
22.
Bxa5
bxa5
23.
Rcb1
Rb8
24.
Rxb8
Qxb8
25.
Rb1
Rb7
26.
Rxb7
Qxb7
27.
Qb1
Qb4
28.
Qxb4
axb4
29.
Kf2
Kf8
30.
Ke2
Ke7
31.
Kd1
Kd7
32.
Kc1
Kc7
33.
Kb1
Kb6
34.
Ka2
Bc8
35.
g3
Bd7
36.
f4
f6
37.
fxe5
fxe5
38.
Nf3
a5
39.
Ng5
h6
40.
Nf3
Nxa4
41.
Bxa4
Bxa4
42.
Nd2
Kc5
0-1
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Event
Site
Havana
Date
1963.09.22
Round
20
White
Calero, Ivan
Black
Result
0-1
Score
[Event "Capablanca Memorial-02"] [Site "Havana"] [Date "1963.09.22"] [Round "20"] [White "Calero, Ivan"] [Black "Ivkov, Borislav"] [Result "0-1"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. a4 Nc6 8. Ba3 d6 9. Nf3 O-O 10. Bd3 Ba6 11. Nd2 Na5 12. O-O Rc8 13. Qe2 Re8 14. f3 Re7 15. Rfc1 Rec7 16. e4 cxd4 17. cxd4 e5 18. d5 Nb7 19. Qf1 Nd7 20. Bb4 Ndc5 21. Bc2 Na5 22. Bxa5 bxa5 23. Rcb1 Rb8 24. Rxb8 Qxb8 25. Rb1 Rb7 26. Rxb7 Qxb7 27. Qb1 Qb4 28. Qxb4 axb4 29. Kf2 Kf8 30. Ke2 Ke7 31. Kd1 Kd7 32. Kc1 Kc7 33. Kb1 Kb6 34. Ka2 Bc8 35. g3 Bd7 36. f4 f6 37. fxe5 fxe5 38. Nf3 a5 39. Ng5 h6 40. Nf3 Nxa4 41. Bxa4 Bxa4 42. Nd2 Kc5 0-1