200701 - Northwest Chess!

It's very dangerous for the White
:Kingto be on the b-file, but, as it turns
out, White could have survived the at-
This Knight has moved seven times tack. It was too complicated to calculate
and is exchanged for a Knight that has over the board. Sveshnikov sUggests 13.
moved three times-four tempi have tlJa4 followed by 14.b3.
dissappearedftomthe board! In addition, 13...ltb814.b3 eS1S.Ae3c416.Ad4
White now has pressure on the d-file.
19.dxeS Ab7 20.Axc4 bxe421.llxe4! 16. 'fIxd6 does not help White, i.e., 16...
.as! 17.Ad4cxb318.axb3Axb3!19.cxb3
dxe4 22.Ilxd8ltfxd8 23.ffxc4
1lxb3 20.r,!,>c2tlJxe4!!
The Queen is stronger than the Rooks.
23...lId1+ 24.Wh2.!.xf3 2s.gxf3Axe5+
26.f4 Ae7 27.ffe4 lIad8 28."xe7
1I1d729.fff6lIdS30.Wg2 1-0
Sicilian Kan
Lucas Davies (2182)
ADenSmith (1830)
Seattle, Washington Class (4) 2006
1.e4 eS 2.~13 e6 3.d4 cxd4 4.~xd4 a6
S.Ad3 ~f6 6.ffe2 Ac5 7.~b3 Aa 78. e5
~dS 9.0-0 1'fh410.g3 .h3 11.~1d2
0-0 12.~e4 h6 13.~d6 ~e6 14.e4
~de 71S.Ae4 hS16.Ag2 ffg4 17.A13
ffh318..!.xhS~f519.~exf520.Af4
lIe8 21 .A13 d6 22.Ag2 ffh 7 23.lIad 1
dxeS 24.Axe6 bxe6 2S.ffxeS Ab7
26.ffe7 Aba 27.ffxb7 Axf428.ffxe6
Ae529.lIfe1ltec830.ffb7 Axb231.c5
ffg6 32.lId6 ffg4 33.ffdS Af6 34.1Id7
1If83s.1Ixr7ltfd836.ltd7+Wh737.e6
f438.ffe4+Wh639.ltxd8ltxd840.~
lId141.Ilxd1 ffxd1+42.Wg2fxg343.
hxg3 ffd8 44.~e6 "e8 45.ffd5 1-0
Pirc 150 Attack
Noam Davies (2042)
NM Ignacio Perez (2241)
Seattle, Washington Class (4) 2006
Notesby Drayton Harrison & FRrn
1.e4g6 2.d4Ag7 3.Ae3 d64.~e3 ~f6
S.130-0 6.ffd2 ~e6 7.0-0-0 eS 8.dS
~d4 !9.~e2 c5 1O.dxe6bxe611. ~d4
exd4 12.Axd4 Ae6
13.Wb1
ffe7! 17.~dS! bdS 18.exdS lIfe8
19.Wa11 c3 20.ffgS! h6 21.ffh4 gS
22.ffg3 ffaS 23.Ad3
23..xd6!! prevents a3, e.g.,
23...lId824..a6. In the game,thetbreat
of ...tlJf6xdS-b4 is unanswerable.
23...ffa3 0-1
English
Brian Opalewski (1726)
Andy May (1952)
Seattle, WashingtonClass (4) 2006
Notesby Drayton Harrison & FRrn
1.~13 ~f6 2.c4 e6 3.g3 b6 4.Ag2 Ab7
S.o-o Ae7 6.b3 0-0 7.Ab2 cS 8.~c3
dS
White is not occupyingthe center; so
Blackstakes outhis owncIann. Whynot
9.e3 dxc4!
Usual is 9...lL\c6,but White has several
ways to get a small edge, e.g., 10.d3,
10.cxdS, and10..e2.
10.bxc4 ~c6 11..e2 IIc8 12.lIfd1
ffe713.~b51 ffb814.d3 ltfd81S.h3
ltd716.d4a617.~c3
17...exd418.exd4lL\aS19.~eS
According to FRITz,19.dS isthe only
move-thatkeeps equality, i.e., 19...tlJxc4
20.dxe6ltxd1+21.ltxd1lL\xb222.exf7+
Wxf723.ffxb2.
19...ltdc720.dS~e421.tlJxe4 Ilxc4
22.lIac1 eS 23.Af1
23.d6!Ad8 24..xe5 Axg2 2S.~xg2
.b7+ 26.tlJdS! ltxc1 27.Axc1 h6 28.
Ae3=
23. ..ltd4 24. Ilxd4 exd4 2S..xe 7 dxc3
26.Axc3
Better is 26.ltxc3 ltxc3 27.Axc3
tlJxdS 28..eS .xeS 29.he5, when
White's Bishoppair willobstruct Black's
:Kingin the pawn-downendgame,affording
some hope of a draw.
26...tlJxdS27.ffe1 tlJxc328'ltxc31lxc3
29.ttxc3ttd6
In Queen endings, it's important to
centralize the Queen. In addition, this
threatens d5.
3O.Ag2
ExchangingBishopsjust helpsBlack.
3O...Axg2 31.Wxg2 fIb8!
Not 31 cS 32.ttxcS bxc5 33.
~f3, as White's :Kinggets to the c-pawn
first
32.a4b5! 33.!Ib4g6 34.g4 ffb7+ 35.13
h6 36.Wh2 ffc7+ 37.Wg2 ffc2+
38.Wg3 ffxa4 39..e7 .d44O..e8+
Wg7 41.ttc6 b442..xa6 b3 43..bS
b2 44.Wg2 0-1
Nimzo-Indian Classical
Kerry Xing (1670)
Chris Fletcher (1641)
Seattle, Washington Class (4) 2006
Notesby Drayton Harrison & FRrn
1.d4 ~f6 2.e4 e6 3.~c3 Ab4 4..c2
0-0 S.a3 Axc3+ 6..xc3 ~e4 7..c2 15
8.~f3 b6 9.e3 Ab710.Ae2 d611.b4
~d712.Ab2 ~f6! 13.h3.e814.cS!
ltca 1S.ltc 1bxcS 16.dxeSdxcS17.bxcS
AdS 18.Aes!fe719.0-0 lIb820.Ac4
ltb721.AxdstlJxd522.c6ltb523..a4
ltbb8 24.Ad4 ~b6 2S..aS .17
26.~eS flhs 27.~d7! tlJxd728.cxd7
cS 29.Axcs f430.exf4 lIfd8 31..xa7
~cS 32.ltxcSlta8 33..c7
33.ttxa8
33...1'1f7 34.ltd1 ffe73S..c8 ltxa3
36.ltc7Wf737.ffb7.f638.ltcalta1
39.1lxa1 .xa1+ 4O.Wh2.f6 41..c7
eS 42..xd8 ffxf4+ 43.Wg1 .d2
44. .e8+ Wf6 45.d8=.+ 1-0
. Caro-Kann
Michael Omori (1646)
Arik Milner (1800)
Seattle, Washington Class (4) 2006
1.e4 c6 2.c4 dS 3.exdS cxdS 4.exdS ~f6
S.~c3 ~dS 6.Ac4 ~c3 7.dxc3 ffxd1 +