1.
c4
Nf6
2.
Nc3
e6
3.
Nf3
d5
4.
d4
Nbd7
5.
Bf4
dxc4
6.
e3
Nd5
7.
Bxc4
Nxf4
8.
exf4
Be7
9.
d5
Nb6
10.
Bb5+
Kf8
11.
dxe6
Qxd1+
12.
Rxd1
Bxe6
13.
O-O
c6
14.
Be2
Nd5
15.
Nxd5
Bxd5
16.
b3
Rd8
17.
Ne5
f6
18.
Nc4
g6
19.
Ne3
Be6
20.
Bc4
Bc8
21.
Rxd8+
Bxd8
22.
Nc2
Bb6
23.
Re1
h5
24.
Bd3
f5
25.
Ne3
Bc7
26.
g3
Rh7
27.
Nc4
Re7
28.
Rc1
Kf7
29.
h4
Be6
30.
Kf1
Kf6
31.
b4
Bb6
32.
a4
Bd4
33.
Rc2
Bd5
34.
Nd2
Rd7
35.
Bc4
a6
36.
Bxd5
Rxd5
37.
Nb3
Bb6
38.
Ke2
Ke6
39.
Rc1
Kd6
40.
Rc2
a5
41.
bxa5
Bxa5
42.
Rc4
b6
43.
f3
c5
44.
Rc2
Kc6
45.
Rc1
Bb4
46.
Rc2
Rd8
47.
Nc1
Ra8
48.
Nd3
Rxa4
49.
Ne5+
Kd5
50.
Nxg6
c4
51.
Ne5
b5
52.
g4
fxg4
53.
fxg4
hxg4
54.
Nxg4
Ke4
55.
Nf6+
Kd4
56.
h5
Ra6
57.
Ng4
c3
58.
h6
Bf8
59.
h7
Bg7
60.
Rc1
Ke4
61.
Nf2+
Kxf4
62.
Nd3+
Kf5
63.
Rh1
Ra8
64.
Rh5+
Kg4
1/2-1/2
Opening Explorer
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Event
Site
Biel
Date
1976.07.31
Round
15
White
Black
Result
1/2-1/2
WhiteElo
2625
BlackElo
2540
Score
[Event "Interzonal-10a"] [Site "Biel"] [Date "1976.07.31"] [Round "15"] [White "Portisch, Lajos"] [Black "Byrne, Robert Eugene"] [Result "1/2-1/2"] [WhiteElo "2625"] [BlackElo "2540"] 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Nbd7 5. Bf4 dxc4 6. e3 Nd5 7. Bxc4 Nxf4 8. exf4 Be7 9. d5 Nb6 10. Bb5+ Kf8 11. dxe6 Qxd1+ 12. Rxd1 Bxe6 13. O-O c6 14. Be2 Nd5 15. Nxd5 Bxd5 16. b3 Rd8 17. Ne5 f6 18. Nc4 g6 19. Ne3 Be6 20. Bc4 Bc8 21. Rxd8+ Bxd8 22. Nc2 Bb6 23. Re1 h5 24. Bd3 f5 25. Ne3 Bc7 26. g3 Rh7 27. Nc4 Re7 28. Rc1 Kf7 29. h4 Be6 30. Kf1 Kf6 31. b4 Bb6 32. a4 Bd4 33. Rc2 Bd5 34. Nd2 Rd7 35. Bc4 a6 36. Bxd5 Rxd5 37. Nb3 Bb6 38. Ke2 Ke6 39. Rc1 Kd6 40. Rc2 a5 41. bxa5 Bxa5 42. Rc4 b6 43. f3 c5 44. Rc2 Kc6 45. Rc1 Bb4 46. Rc2 Rd8 47. Nc1 Ra8 48. Nd3 Rxa4 49. Ne5+ Kd5 50. Nxg6 c4 51. Ne5 b5 52. g4 fxg4 53. fxg4 hxg4 54. Nxg4 Ke4 55. Nf6+ Kd4 56. h5 Ra6 57. Ng4 c3 58. h6 Bf8 59. h7 Bg7 60. Rc1 Ke4 61. Nf2+ Kxf4 62. Nd3+ Kf5 63. Rh1 Ra8 64. Rh5+ Kg4 1/2-1/2