April 2013 - Northwest Chess!
April 2013 - Northwest Chess!
April 2013 - Northwest Chess!
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Carl Haessler –<br />
Sean Tobin [A20]<br />
<strong>2013</strong> Oregon Invitational<br />
Championship Portland <strong>Chess</strong> Club<br />
(R7), Feb. 17, <strong>2013</strong><br />
1.c4 e5 2.g3 Nc6 3.Bg2 Nf6 4.e4<br />
Bc5 5.Ne2 d6 6.0–0 0–0 7.d3 h6<br />
8.h3 Nh7 9.Kh2 g5!<br />
9...f5<br />
10.Nbc3 a6 11.f4 f6 12.a3 Ba7<br />
13.b4 Kh8 14.Bd2 Be6 15.Qc1 gxf4<br />
16.gxf4 f5 17.Be3<br />
17.fxe5 dxe5 18.Bxh6±<br />
17...Nd4 18.Bxd4 exd4 19.exf5 Bxf5<br />
20.Ne4 Qh4 21.Qe1 Qxe1<br />
21...Qe7²<br />
22.Raxe1 Bxe4 23.Bxe4 c6 24.Bg6<br />
Rf6 25.f5 Nf8 26.Bh5 Nd7 27.Nf4<br />
Ne5 28.Ng6+ Kg7 29.c5 Nxg6<br />
30.Bxg6 dxc5 31.Re7+ Kf8 32.Rxb7<br />
Bb8+ 33.Kg2 Bd6 34.Re1 cxb4<br />
35.axb4 c5 36.b5 axb5 37.Rxb5<br />
Ra2+ 38.Kf3 Kg7<br />
38...Ra7<br />
39.Rb7+ Kg8 40.Ke4 Bf8 41.Rg1<br />
44.Rd7 Re8+ 45.Kf4 1–0<br />
Daniel Gay –<br />
David Wen [B13]<br />
<strong>2013</strong> Oregon Invitational<br />
Championship Portland <strong>Chess</strong> Club<br />
(R7), Feb. 17, <strong>2013</strong><br />
1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6<br />
5.Nc3 Nc6 6.Bg5 dxc4 7.d5 Ne5<br />
8.Qd4 Nfd7 9.Bxc4 Qb6 10.Qxb6<br />
Nxb6 11.Bb5+ Bd7 12.Bxd7+ Kxd7<br />
13.0–0–0 Rc8 14.Nge2 g6 15.Be3<br />
Nec4 16.Bd4 Bh6+ 17.Kb1 Rhd8<br />
18.b3 Nd6 19.Rd3 Bg5 20.f4 Bf6<br />
21.Bxb6 axb6 22.Na4 Kc7 23.Rc1+<br />
Kb8 24.Nxb6<br />
24.Rxc8+ Nxc8 25.Nac3 Nd6<br />
26.Nd4²<br />
24...Rxc1+ 25.Kxc1 Ka7 26.Na4<br />
26.Nc4 Rc8<br />
26...b5 27.Nac3 b4 28.Na4 Nb5<br />
29.Rd2 Nc7 30.Nd4 Bxd4 31.Rxd4<br />
Nxd5 32.Nb2 Rc8+ 33.Kd2 e6<br />
34.Nd3 Rb8 35.Ne5 Rb6<br />
35...Rb7=<br />
36.Kc1<br />
Daniel Gay (left) vs. David Wen (right).<br />
Photo credit: Sean Tobin.<br />
36.Nxf7 Ra6=<br />
40...Ka5= 41.Nxb4! Rxc4 42.Nxd5<br />
Rd4 43.Nxf6 Rd2+ 44.Kc3 Rxh2µ<br />
41.Nxb4! Rxc4 42.bxc4+ Kxc4<br />
43.Nxd5 Kxd5 44.Kc3 g5 45.fxg5<br />
fxg5 46.Kd3<br />
The outside passed pawn rules. 1–0<br />
Brian Esler –<br />
Robert Herrera [B44]<br />
<strong>2013</strong> Oregon Invitational<br />
Championship Portland <strong>Chess</strong> Club<br />
(R7), Feb. 17, <strong>2013</strong><br />
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4<br />
Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3<br />
a6 8.Na3 b6 9.Be2 Bb7 10.f4! d5!<br />
11.cxd5 exd5 12.e5 d4 13.exf6 dxc3<br />
14.Qxd8+ Rxd8 15.bxc3 gxf6<br />
36...Rb7 37.Kb2 Kb6 38.Rc4 Rc7<br />
41.Kd5<br />
16.0–0!<br />
38...f6=<br />
41...Bg7<br />
16.Nc2÷ but roughly equal.<br />
39.g3 f6 40.Nd3 Kb5<br />
41...Re2+ 42.Kd5 Re7±<br />
16...Bc5+ 17.Kh1 Ne7 18.Nc4<br />
[Diagram top of next column]<br />
42.Bh7+ Kh8 43.Rbxg7 Ra8<br />
18.Nc2 Rg8 19.Ne1³<br />
<strong>Northwest</strong> <strong>Chess</strong> <strong>April</strong> <strong>2013</strong> Page 15
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