1.
Nf3
Nf6
2.
b4
g6
3.
Bb2
Bg7
4.
c4
O-O
5.
g3
d6
6.
Bg2
e5
7.
Nc3
a5
8.
b5
Nbd7
9.
O-O
Nh5
10.
e4
f5
11.
exf5
gxf5
12.
Nxe5
Nxe5
13.
Qxh5
f4
14.
Bd5+
Kh8
15.
Be4
h6
16.
f3
Be6
17.
Nd5
fxg3
18.
hxg3
Bf7
19.
Qh3
c6
20.
Ne3
Qe8
21.
f4
Be6
22.
Bf5
Bxf5
23.
Nxf5
Rxf5
24.
Qxf5
Nxc4
25.
Bxg7+
Kxg7
26.
Rfe1
Qf7
27.
Qg4+
Kh7
28.
d3
Nb6
29.
bxc6
bxc6
30.
Kf2
Nd5
31.
Re6
Rg8
32.
Rxh6+
1-0
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Event
Site
Rochester
Date
1958.08.07
Round
4
White
Koelsche, Giles A
Black
Otteson, Milton
Result
1-0
Score
[Event "US Open-59"] [Site "Rochester"] [Date "1958.08.07"] [Round "4"] [White "Koelsche, Giles A"] [Black "Otteson, Milton"] [Result "1-0"] 1. Nf3 Nf6 2. b4 g6 3. Bb2 Bg7 4. c4 O-O 5. g3 d6 6. Bg2 e5 7. Nc3 a5 8. b5 Nbd7 9. O-O Nh5 10. e4 f5 11. exf5 gxf5 12. Nxe5 Nxe5 13. Qxh5 f4 14. Bd5+ Kh8 15. Be4 h6 16. f3 Be6 17. Nd5 fxg3 18. hxg3 Bf7 19. Qh3 c6 20. Ne3 Qe8 21. f4 Be6 22. Bf5 Bxf5 23. Nxf5 Rxf5 24. Qxf5 Nxc4 25. Bxg7+ Kxg7 26. Rfe1 Qf7 27. Qg4+ Kh7 28. d3 Nb6 29. bxc6 bxc6 30. Kf2 Nd5 31. Re6 Rg8 32. Rxh6+ 1-0