1.
e4
g6
2.
f4
Bg7
3.
Nc3
c5
4.
Nf3
Nc6
5.
g3
e6
6.
d3
Nge7
7.
Bg2
O-O
8.
O-O
d6
9.
Bd2
Rb8
10.
Rb1
b5
11.
a3
a5
12.
Ne2
b4
13.
axb4
axb4
14.
b3
1/2-1/2
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Event
Site
Philadelphia
Date
1987.??.??
White
Colias, Billy
Black
Hanken, Jerome B
Result
1/2-1/2
WhiteElo
2245
BlackElo
2225
[Event "Philadelphia op"] [Site "Philadelphia"] [Date "1987.??.??"] [Round "?"] [White "Colias, Billy"] [Black "Hanken, Jerome B"] [Result "1/2-1/2"] [WhiteElo "2245"] [BlackElo "2225"] 1. e4 g6 2. f4 Bg7 3. Nc3 c5 4. Nf3 Nc6 5. g3 e6 6. d3 Nge7 7. Bg2 O-O 8. O-O d6 9. Bd2 Rb8 10. Rb1 b5 11. a3 a5 12. Ne2 b4 13. axb4 axb4 14. b3 1/2-1/2