Here is a game from the last weekend where I played a bit miserably to score 2/5. Annotations to follow.
[Event "Michigan Masters and Experts"]
[Site "Lansing, MI"]
[Date "2009.01.18"]
[Round "5"]
[White "Drkulec, Vladimir"]
[Black "NN"]
[Result "1-0"]
[WhiteElo "2138"]
[BlackElo "2020"]
[ECO "E38e"]
[EventDate "2009.01.18"]
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2
{The Classical Nimzoindian.}
4...c5 5.dxc5 Bxc5
{More usual is 5...0-0 or 5...Na6}
6.Nf3 b6 7.g3
{A bit of improvisation at the board. I thought that I would oppose
his queenside fianchetto with a kingside fianchetto of my own.}
7...Bb7 8.Bg2 O-O 9.O-O Nc6 10.a3 Rc8 11.b3 Nd4
{This move unwisely offers white a pawn. He thought a long time before
making this move so I looked at the position carefully to make sure
that there wasn't something I was missing and then I played...}
12.Nxd4 Bxg2 13.Nxe6
{A zwischenzug that my opponent foresaw.}
13...fxe6 14.Kxg2 Ng4 15.f3
{My opponent only calculated 15.f4 and was clearly surprised by my
idea. I didn't even consider that move judging that my king was
relatively safe with the pawn on f3.}
15...d5 16.Bd2
{Connecting the rooks and completing development without taking my eye
off the e3 square where the knight can fork my king and queen. I
didn't even consider 16.fxg4 when it seemed to me that my king was
getting checkmated. The text move now allows the knight to be captured
since I can recapture with the rook after ...Rxf1}
16...Ne5 17.cxd5 exd5 18.Qa2
{Putting my queen on the king's diagonal can't be a bad idea.}
18...Kh8
{The king vacates the dangerous diagonal.}
19.Rac1
{Overprotecting c3.}
19...Qe8 20.b4 Bd6 21.Nxd5
{Winning a second pawn and centralizing my knight which becomes an
octopus.}
21...Rd8 22.Bc3
{Placing my bishop on the king's diagonal.}
22...h5
{At this point I was about an hour and a half ahead of my opponent on
time. This move smacks of desperation. Only my queen is unprotected
and black's plan of undermining g3 seems to be unsound as opening the
h-file leads to a swift mate against black.}
23.Rcd1 h4
{Black is letting the momentum carry him.}
24.Rd4 Ng6 25.Rg4
{After this move black's attempts to liven things up grind to a
complete halt. White merely has to be a bit careful and the two extra
pawns will decide the issue.}
25...Be5
{Black gives up on his g3 ambitions and is now hoping that white will
fall for one of the tricks left in his position.}
26.Bxe5 h3+
{A pleasant surprise.}
27.Kxh3 Qxe5
{Oh look! A free knight!}
28.Kg2
{No thank you. Taking the knight on g6 would lose the rook to Qh5+.}
28...Qe6 29.Rd1 Rf5
{It looks like that knight's days might be numbered unless we support
it with a pawn...}
30.Rxg6
{Lets trade some pieces off instead.}
30...Qf7

{Here my opponent had about three minutes left in this totally losing
position versus my hour or so and I found the amazing}
31.Nf6
{This position deserves its own diagram. Every one of my pieces is en prise and every one of my pieces is immune to capture.}

31...Qf8
32.Qf7
{This was being a bit too cute but he was down in the minute and a
half range. This forces a trade off into an easily won rook ending.}
32...Rxf6 33.Rxf6 gxf6 34.Qxf8+ Rxf8 35.Rd7 1-0