1.
d4
d5
2.
Nf3
e6
3.
g3
c5
4.
Bg2
Nf6
5.
O-O
Qb6
6.
c4
dxc4
7.
Nc3
cxd4
8.
Nxd4
e5
9.
Qa4+
Bd7
10.
Ndb5
Na6
11.
Be3
Bc5
12.
Bxc5
Nxc5
13.
Qxc4
Be6
14.
Qh4
a6
15.
b4
Ncd7
16.
Na3
g5
17.
Qxg5
Qxb4
18.
Qc1
Rc8
19.
Nd5
Rxc1
20.
Nxb4
Rc3
21.
Rfc1
Rxa3
22.
Rc8+
Ke7
23.
Rxh8
a5
24.
Nc2
Rxa2
25.
Rxa2
Bxa2
26.
Bxb7
Nf8
27.
f3
Bc4
28.
Kf2
Bb5
29.
g4
Bd7
30.
Ke1
Be6
31.
Kd2
Ne8
32.
Ne3
f6
33.
Be4
Kf7
34.
Bxh7
Kg7
35.
Rxf8
Kxf8
36.
Kc3
Nd6
37.
Bd3
Kg7
38.
Kb2
Kh6
39.
h4
Bd7
40.
Kb3
Bc6
41.
Nf5+
Nxf5
42.
Bxf5
Bb5
43.
Bd3
Bd7
44.
Kc4
Ba4
45.
Kc5
Bd1
46.
Kb5
a4
47.
Kb4
Kg7
48.
Ka3
Bb3
49.
Bb5
e4
50.
Bxa4
Bc4
51.
Bd1
f5
52.
gxf5
exf3
53.
exf3
Bd3
54.
Kb2
Bxf5
55.
Kc3
Kf6
56.
Kd4
Bg6
57.
f4
Be8
58.
Bg4
Bg6
59.
h5
Bc2
60.
Bf3
Kg7
61.
Ke5
Bd3
62.
Bd1
Kh6
63.
Kf6
Be4
64.
Bg4
Bd3
65.
Bf5
Be2
66.
Bg6
Bg4
67.
Bf7
Bh3
68.
Bg6
Bg4
69.
Be8
Bh3
70.
Ke7
Bf5
71.
Bd7
Bd3
72.
Bg4
Bc2
73.
Kf6
Bd3
74.
Bf3
Bc2
75.
Ke5
Kg7
76.
Be2
Kh6
77.
Bg4
Bd3
78.
Bd1
Kg7
79.
Bf3
Bc2
80.
Bc6
Bd1
81.
Be8
Bg4
82.
Bg6
Kh6
83.
Kf6
Bh3
84.
Bf5
Bf1
85.
Bg6
Bh3
86.
Bf7
Bg4
87.
Ke7
Bf5
88.
Kd6
Kg7
89.
Bd5
Kh6
90.
Be6
Bd3
91.
Ke5
Kxh5
92.
Bf5
Bf1
93.
Be4
Kh6
1/2-1/2
Opening Explorer
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Site
Siegen
Date
1970.09.05
Round
1
White
Black
Patterson, Nicholas J
Result
1/2-1/2
[Event "Olympiad-19 Preliminaries D"] [Site "Siegen"] [Date "1970.09.05"] [Round "1"] [White "Larsen, Bent"] [Black "Patterson, Nicholas J"] [Result "1/2-1/2"] 1. d4 d5 2. Nf3 e6 3. g3 c5 4. Bg2 Nf6 5. O-O Qb6 6. c4 dxc4 7. Nc3 cxd4 8. Nxd4 e5 9. Qa4+ Bd7 10. Ndb5 Na6 11. Be3 Bc5 12. Bxc5 Nxc5 13. Qxc4 Be6 14. Qh4 a6 15. b4 Ncd7 16. Na3 g5 17. Qxg5 Qxb4 18. Qc1 Rc8 19. Nd5 Rxc1 20. Nxb4 Rc3 21. Rfc1 Rxa3 22. Rc8+ Ke7 23. Rxh8 a5 24. Nc2 Rxa2 25. Rxa2 Bxa2 26. Bxb7 Nf8 27. f3 Bc4 28. Kf2 Bb5 29. g4 Bd7 30. Ke1 Be6 31. Kd2 Ne8 32. Ne3 f6 33. Be4 Kf7 34. Bxh7 Kg7 35. Rxf8 Kxf8 36. Kc3 Nd6 37. Bd3 Kg7 38. Kb2 Kh6 39. h4 Bd7 40. Kb3 Bc6 41. Nf5+ Nxf5 42. Bxf5 Bb5 43. Bd3 Bd7 44. Kc4 Ba4 45. Kc5 Bd1 46. Kb5 a4 47. Kb4 Kg7 48. Ka3 Bb3 49. Bb5 e4 50. Bxa4 Bc4 51. Bd1 f5 52. gxf5 exf3 53. exf3 Bd3 54. Kb2 Bxf5 55. Kc3 Kf6 56. Kd4 Bg6 57. f4 Be8 58. Bg4 Bg6 59. h5 Bc2 60. Bf3 Kg7 61. Ke5 Bd3 62. Bd1 Kh6 63. Kf6 Be4 64. Bg4 Bd3 65. Bf5 Be2 66. Bg6 Bg4 67. Bf7 Bh3 68. Bg6 Bg4 69. Be8 Bh3 70. Ke7 Bf5 71. Bd7 Bd3 72. Bg4 Bc2 73. Kf6 Bd3 74. Bf3 Bc2 75. Ke5 Kg7 76. Be2 Kh6 77. Bg4 Bd3 78. Bd1 Kg7 79. Bf3 Bc2 80. Bc6 Bd1 81. Be8 Bg4 82. Bg6 Kh6 83. Kf6 Bh3 84. Bf5 Bf1 85. Bg6 Bh3 86. Bf7 Bg4 87. Ke7 Bf5 88. Kd6 Kg7 89. Bd5 Kh6 90. Be6 Bd3 91. Ke5 Kxh5 92. Bf5 Bf1 93. Be4 Kh6 1/2-1/2