Stong opponent, I lost, where did I go wrong?

The opponent was much stronger than me and he won. However I am pretty proud of this game, despite me making a big blunder (probably more). Could you guys help me out here. Where did I lost the game? Did I miss out on a good position etc etc... Any comment is welcome really. Just as long as I can learn from it.

I don't wanna be mean... but there is not much to learn from that game... You blundered a piece early. That's it. Don't do it again.

And here I was, proud for putting pressure on him :(

@rdecredico, what would be the reasoning behind that? (I'm under <1400, I sort of need the reason why)

Instead of Nc6, Bb7?

6...Nxd4 drops a knight out of sheer greediness. In short order, you lose another minor piece by 10... Bb7, and then there really is no point at all looking at the rest of the game.

If you want to play openings with piece sacrifices that actually go anywhere, the Queen's Indian is probably not the right choice; some e4 openings with white might give you that opportunity. Well, Botwinnik Semi-Slav or something has piece sacrifices in it. I don't know jack about the Queen's Indian so I can't tell you where your mistakes in the opening were exactly, but if you really do want to just hear what I have to say then it would be "play 1...d5 until you learn more about the game", since that's easier for beginners - hell, I've been playing this game for 16 years and I haven't progressed past 1...d5 yet.

principal error in the beginning : you failed to take control over the center with some pawns, this resulted in : 6.e5 attacking the knight, unhindered by any pawns of you, and the knight had no good field to go to.

a retreat to g8 with the knight was better than sacrificing it.

gl in your games

Yeah, the loosing of the knight was a complete blunder. I did not see it at that time. If I had seen it, I would have retreated. Tactics... ok :) I'll start the tacticstrainer.

After 4 e4, white is attacking b5, c5, d5, e5, f5.  Black is countering on c5, d5, and f5.  That leaves b5 and e5 uncontested.

After 9 a3, I'd consider either Ba5 or Qg6.  Either move your bishop or threaten Nc2.

10 ...Bb7 gave away your dark bishop.

11 ...cxb4 led to trading knights.  Already down two pieces, I'd avoid trading.

Hope that helps.  :)

Eric

Whehe, thanks mate ;) That does help :) What were the things I did right? 
I was sort of proud that I stood up so long with 3 major pieces behind. And I had the idea (not sure if that is true, but I felt like that) that after the opening, I could better see what my opponent was doing and I at least was able to frustrate his plan. 

Ah yes, you are right, about the pieces and well about everything!

After 3. Nc3, White is threatening to do exactly what he did: take over the center with e4. 3...Bb7 would have put that off and kept the ability to fight for the center and complete development.

Remember: complete development first, then start lunging at your opponent.

you could play with a better opening

10 bd7 was a blunder

In my mind , let the opponent play e4 so easily is already a start of a loss or an unsound position. Bb4 must be played

5... Nc6 isn't a good move.  You're going to want to push the pawn to c5 in the near future, and the Knight blocks that.   5... Bb7 is better.  You're going to develop the Bishop there anyway, and now is a good time to do so.  

6... Nxd4 isn't that bad of a move, although you may want to play 6... Ng8  or 6... Ng4 instead.  It isn't just "throwing away a piece", as you get some compensation for it.

9...Qe5+ is a waste of time.  You should just move the Bishop to a5, with the idea of pressuring the Knight with Nb5 next.

10... Bb7 of course loses a piece.  10... Bxc3+ and 11... Nf5 is better.

11 ....cxb4, while not a blunder, allows White to trade pieces and simplify, something you want to avoid when down material.  You should ramp up the pressure with 11... Nf4.

18... Rc5 is another waste of time, since the Rook can easily be driven away from that square.  But at that point the game is a loss anyway.

Ok thank you all. I'm gonna play a takeback game with the same opponent and take into account the things you said here. But in the end I guess it comes down to: study more, study harder :)

The first thing is : don't let your opponent play e4 so easily. If you don't undrrstand that, you are already lost. No matter the amount of time you will spend studying.

Yhis the key.

Blunder ruined the game for you, otherwise it was a nice fight.

While you made some mistakes, I would suggest that your key mistake was in your approach to the game.

For example, this was a game in a tournament environment where you were playing black against a player rated 500 points higher than you were.  He appeared to want to play a standard queens gambit opening -- which is a pretty common and (I believe) conservative opening.  Instead of fighting for the center and setting up a pawn structure, you used your second move to set up a fianchetto for your bishop.  However, the actual fianchetto didn't happen until the 10th move and in the end it may have won you a pawn but really had no bearing on the game. 

So here is what I mean by approach.  Instead of playing an opening with some sizzle, I would have started a game against a stronger opponent looking to trade off material quickly to simplify and aim towards the draw.  While working towards the draw, wait to see if your opponent makes a mistake you can take advantage of and only then you go for the win. 

So instead of looking for the quick advantage I would have opened with the sequence d5 e6 Nf6 to invite some trades and keep it even.