1.
g3
g6
2.
Bg2
Bg7
3.
c4
Nf6
4.
Nc3
O-O
5.
d3
c6
6.
Nf3
d5
7.
cxd5
cxd5
8.
Qa4
Nc6
9.
O-O
d4
10.
Nb5
Nd5
11.
Bd2
a6
12.
Na3
h6
13.
Nc2
Nb6
14.
Qa3
a5
15.
Rfc1
e5
16.
Nfe1
Bd7
17.
b4
axb4
18.
Qb3
Be6
19.
Qb1
b3
20.
axb3
Rxa1
21.
Nxa1
Nd5
22.
b4
Qb6
23.
b5
Na7
24.
Nb3
Rc8
25.
Rxc8+
Nxc8
26.
Qc2
Qxb5
27.
Nc5
Nce7
28.
Nxe6
fxe6
29.
Bh3
Qd7
30.
Nf3
Nc6
31.
Qc5
Kh7
32.
Ne1
Nd8
33.
Nc2
b6
34.
Qc4
Bf8
35.
Nb4
b5
36.
Nxd5
exd5
37.
Bxd7
bxc4
38.
Ba5
c3
39.
Ba4
Nb7
40.
Bb6
Bc5
41.
Bc7
Bd6
42.
Bb6
Bc5
43.
Bc7
Bd6
44.
Bb6
Kg7
45.
Kf1
Bb4
46.
Bc2
Bc5
47.
Bc7
Bd6
48.
Bb6
Bc5
49.
Bc7
Kf6
50.
Ke1
Bd6
51.
Bb6
Bc5
52.
Bc7
Bb4
53.
Kd1
Nc5
54.
Bb6
Nd7
55.
Ba7
Ke6
56.
Ba4
Nf6
57.
f3
h5
58.
Bb6
Nd7
59.
Bxd7+
Kxd7
60.
h3
Ke6
61.
g4
Ba3
62.
Kc2
Bf8
63.
Kd1
Bh6
64.
Kc2
Be3
65.
Bc7
Bf4
66.
Kd1
Kf6
67.
Bd8+
Kg7
68.
Be7
Be3
69.
Kc2
Kf7
70.
Bd6
Ke6
71.
Bc7
Bg5
72.
Bb6
Bf6
73.
Bc7
Kf7
74.
Bd6
Kg7
75.
Ba3
Kh7
76.
Bf8
Bg5
77.
Bd6
Bf4
78.
Be7
Kg8
79.
Bd6
Bg3
80.
Be7
Kf7
81.
Bd8
Ke6
82.
Bb6
Bh4
83.
Ba5
Be7
84.
Bb6
Kd6
85.
Kb3
Kc6
86.
Ba5
Bc5
87.
Bd8
Bb6
88.
Bf6
Kd6
89.
Kc2
Ke6
90.
Bg5
Bc7
91.
Bh4
Ba5
92.
Bg5
Bb6
93.
Bh4
hxg4
94.
hxg4
1/2-1/2
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Event
Site
Houston
Date
1974.12.??
White
Chellstorp, Craig V
Black
Grefe, John Alan
Result
1/2-1/2
[Event "Houston"] [Site "Houston"] [Date "1974.12.??"] [Round "?"] [White "Chellstorp, Craig V"] [Black "Grefe, John Alan"] [Result "1/2-1/2"] 1. g3 g6 2. Bg2 Bg7 3. c4 Nf6 4. Nc3 O-O 5. d3 c6 6. Nf3 d5 7. cxd5 cxd5 8. Qa4 Nc6 9. O-O d4 10. Nb5 Nd5 11. Bd2 a6 12. Na3 h6 13. Nc2 Nb6 14. Qa3 a5 15. Rfc1 e5 16. Nfe1 Bd7 17. b4 axb4 18. Qb3 Be6 19. Qb1 b3 20. axb3 Rxa1 21. Nxa1 Nd5 22. b4 Qb6 23. b5 Na7 24. Nb3 Rc8 25. Rxc8+ Nxc8 26. Qc2 Qxb5 27. Nc5 Nce7 28. Nxe6 fxe6 29. Bh3 Qd7 30. Nf3 Nc6 31. Qc5 Kh7 32. Ne1 Nd8 33. Nc2 b6 34. Qc4 Bf8 35. Nb4 b5 36. Nxd5 exd5 37. Bxd7 bxc4 38. Ba5 c3 39. Ba4 Nb7 40. Bb6 Bc5 41. Bc7 Bd6 42. Bb6 Bc5 43. Bc7 Bd6 44. Bb6 Kg7 45. Kf1 Bb4 46. Bc2 Bc5 47. Bc7 Bd6 48. Bb6 Bc5 49. Bc7 Kf6 50. Ke1 Bd6 51. Bb6 Bc5 52. Bc7 Bb4 53. Kd1 Nc5 54. Bb6 Nd7 55. Ba7 Ke6 56. Ba4 Nf6 57. f3 h5 58. Bb6 Nd7 59. Bxd7+ Kxd7 60. h3 Ke6 61. g4 Ba3 62. Kc2 Bf8 63. Kd1 Bh6 64. Kc2 Be3 65. Bc7 Bf4 66. Kd1 Kf6 67. Bd8+ Kg7 68. Be7 Be3 69. Kc2 Kf7 70. Bd6 Ke6 71. Bc7 Bg5 72. Bb6 Bf6 73. Bc7 Kf7 74. Bd6 Kg7 75. Ba3 Kh7 76. Bf8 Bg5 77. Bd6 Bf4 78. Be7 Kg8 79. Bd6 Bg3 80. Be7 Kf7 81. Bd8 Ke6 82. Bb6 Bh4 83. Ba5 Be7 84. Bb6 Kd6 85. Kb3 Kc6 86. Ba5 Bc5 87. Bd8 Bb6 88. Bf6 Kd6 89. Kc2 Ke6 90. Bg5 Bc7 91. Bh4 Ba5 92. Bg5 Bb6 93. Bh4 hxg4 94. hxg4 1/2-1/2