My first game on chess.com

I have seen there is a marked difference between me, a casual chess player that has become interested in the theory of chess, and other people of my level that do not try to understand the theory. I usually beat them with the help of some of the information that lingers in my head. At the same time, there is an even greater difference between me and people that actively play chess online, not only when a colleague becomes interested in playing. They crush me immediately.

It seems to me that in order to grasp the chess theory I must also back it up with practice. So I have decided (after quite a while of fearing it would either become addictive or that I would suck terribly) I've made the first step and played a game there. And I won! Woo hoo! Unfortunately I played horribly and only luck can be attributed to my victory. As always, I've analysed the PGN and here it is. You will understand the shame of my victory (yes, it can happen) when you get to the end. Enjoy!

[Event "Siderite vs Mar09 2012.07.14"]
[Site "Chess.com"]
[Date "2012.07.14"]
[Round "1"]
[White "Siderite"]
[Black "Mar09"]
[Result "1-0"]
[BlackElo "2400"]
[ECO "C41"]
[Opening "Philidor"]
[Variation "Hanham, Steiner Variation"]
[WhiteElo "2400"]
[TimeControl "0+300"]
[Termination "normal"]
[PlyCount "77"]
[WhiteType "human"]
[BlackType "human"]

1. e4 {+0.11/16 10} e5 {-0.09/16 10} 2. Nf3 {+0.13/15 10} d6 {-0.31/15 10}
3. h3 {+0.15/15 10} Be7 {-0.15/15 10} 4. d4 {+0.16/16 10 Didn't know
anything about the Philidor defence that Black employed, except that it is
rather passive. So I decide to attack.} Nd7 {-0.26/15 10} 5. dxe5 {+0.26/16
10} Nxe5 {-0.24/16 10} 6. Nxe5 {+0.23/17 10} dxe5 {-0.23/17 10} 7. Qxd8+
{+0.23/17 10} Bxd8 {-0.15/17 10} 8. Bc4 {+0.04/17 10 computer thinks that
defending the pawn with the knight would have been better. As such, Black
has equality.} Ne7 {-0.23/16 10} 9. O-O {+0.27/16 10} O-O {-0.26/17 10} 10.
Nd2 {+0.20/18 10} Kh8 {-0.38/16 10 Analysis says this is a bad move and
gives White 0.2 because the pawn at f7 is defended only by the rook, but
Black intends to move it forward anyway.} 11. Nf3 {+0.35/16 10} f6
{-0.30/16 10} 12. Bd2 {+0.27/17 10 at this moment I am lost: I have no
strategy, no obvious attack and so I decide to improve my position a little
bit.} a6 {-0.28/15 10} 13. Bb4 {+0.24/17 10} b5 {-0.88/17 10 I thought
about the computer suggested move at the time: Bc4-d5, but dismissed it
because I felt it did not do anything.} 14. Bb3 {+0.46/17 10} a5 {-0.48/18
10 I almost always fall for pawn pushes. I tend to dismiss their
importance, you see, until it is too late.} 15. Bc5 {+0.48/19 10} a4
{-0.57/18 10} 16. Bd5 {+0.71/17 10 Bd5 is no longer as effective as it
would have been.} Ra6 {-0.54/17 10} 17. a3 {+0.54/19 10 The only move to
save my poor light bishop from getting trapped after c6.} c6 {-0.86/19 10}
18. Ba2 {+0.88/19 10} h6 {-1.97/17 10 You see what I should have done here?
Ra1-d1 would have threatened the bishop on d8, the only defender of the
pinned knight on e7.} 19. c4 {+0.59/17 10 Instead I tried to exchange a
weak pawn with a strong one, breaking the menacing pawn chain c6, b5, a4}
(19. Rad1 Kh7 20. Rxd8 Rxd8 21. Bxe7 Rd7) 19. .. Re8 {-0.72/18 10} 20. Rad1
{+0.43/18 10} Ng6 {-5.97/17 10 too late for Rd1, but do you see the winning
move for White here?} 21. g3 {+0.33/17 10 instead I get spooked by the
knight and try to block it and leaving my h3 pawn undefended.} (21. cxb5
cxb5 22. Bf7 {nice pin, one might think, but look closer: the rook at e8
has nowhere to go, the bishop on d8 is defended by the rook alone and the
knight on g6 is also under attack. This gives White a staggering 6 point
advantage.} Rg8 23. Bxg8 Ba5 24. Bf7 Nf4 25. Be8 {b5: completely
undefendable} Ne6 26. Be3 b4 27. Bb5 Ra8 28. Bc6 Ra6 29. Rc1 bxa3 30. bxa3
Nf4 31. Bxf4 exf4 32. Rfd1 Be6 33. Bxa4 Ra8 34. Bc6 Ra7) 21. .. Bb6
{-2.12/18 10 at this moment I still had the trap for the rook on e8, but it
was invisible to me.} 22. Bxb6 {+0.22/17 10} (22. cxb5 Bxc5 {this is the
best move in the situation} (22. .. cxb5 23. Bxb6 Bxh3 24. Rfe1 Rxb6 25.
Bf7 Reb8 26. Bxg6 {White has more than 2 points advantage here.}) 23. bxa6)
22. .. Rxb6 {-0.17/18 10} 23. Kh2 {-0.05/18 10 Yay, I saved the pawn!, I
thought at the moment... by doing so I have missed every opportunity and
reached equality with Black.} c5 {-0.38/17 10} 24. Rd5 {-0.15/17 10} Bb7
{+0.14/18 10} 25. Rxc5 {-0.17/19 10} Bxe4 {-0.07/18 10} 26. Nd2 {+0.09/19
10} Bd3 {-0.11/18 10} 27. Re1 {-0.04/17 10 the computer advises to take the
soon to be open c file. I miss that, too. Little did I know what incredible
edge it would give me at the end. Goooo, luck!} b4 {0.00/16 10} 28. Re3
{-0.07/16 10} Bc2 {+0.13/16 10 again, I decided to play aggressively. If I
could exchange the rooks, I would have a powerful passed pawn.} 29. Rb5
{-0.41/18 10} Rd6 {+0.45/19 10} 30. Ne4 {-1.51/16 10} Bxe4 {+1.64/17 10}
31. Rxe4 {-1.55/19 10} b3 {+1.62/17 10} 32. Bb1 {-2.36/16 10 my light
bishop is trapped. All one has to do is move the rook on d1.} Rd2 {+0.83/19
10 fortunately Black misses it.} 33. c5 {-2.11/17 10 and I ignore that f2
is undefended and, more, it would place me in check.} Rxf2+ {+2.10/19 10}
34. Kg1 {-2.13/20 10} Rxb2 {+2.19/20 10} 35. Re1 {-2.24/19 10 the situation
is dire. Black has 2 pawns ahead and if he sees that I attacked his knight
with the bishop while defending it with the rook, I am a goner.} Ne7
{+2.36/18 10} 36. Rb4 {-2.40/18 10} Nc6 {+1.73/15 10} 37. Rxa4 {-2.18/16
10} Nd4 {0.00/18 10 He saw the knight being attacked, but didn't notice the
pawn on e5 is pinned. It is not all lost for Black, since after a few
exchanges we reach equality. But check out the next moves!} 38. Rxd4
{+0.03/19 10} exd4 {-M1/69 10} (38. .. Rxb1 39. Rxb1 exd4 40. Rxb3
{complete equality and probably a loss for me, as I don't know much about
endgames.}) 39. Rxe8# {Yup. Mate. Neither of us has seen it. When I took
the rook I thought he resigned, as the game ended so suddenly. But no, it
was an accidental mate. How embarrassing.} 1-0