School Tourney

The most recent game of mine in my school's chess tournament.  I've only recently started getting serious about chess, so I made an account here :)

Tell me what I could improve on if you could :D

Funnily enough, both 3.Nc3 and 3.Nxe5 are equally valid.

Reason being: 3.Nxe5 Qe7!?,black is still in a bad way, but after Nc4 Qxe4+ Ne3, while white has a magnificent start, it's not necessarily better than after 3.Nc3. 

3...Bd6 4.Bd3

 two mistakes in a row!

Black made a an error and white obliged by making the same error:

Two important opening principles are:

1) Fight for the center

2) Develop your pieces.

Both Bd6 and Bd3 block their own queen pawn's advance (which you may want to use to fight for the center), and as a result of that close the way for the other bishop as well (that pawn is blocking him). On top of all that, the bishop is placed where it has no activity. It is directly blocked by a pawn that is already there.

4) d4 would have been much stronger for white - fights for the center, open the position when you are more developed than black, black weakened his king's position with ...f6, and black blocked his own advance in the center with his bishop.

 d4 would have made white's advantage even bigger.

Luckily for white, during the course of the next few moves, black insists on not developing his pieces.

You missed 9.Qh5+

It would have been a killer. Black's king will now be stuck in the center, as the king has to move (9...Qf7? 10.Nf6+ wins the black queen, while after 9...Nf7 10.Nxf6+ Kd8 11.Nf5, black has lost the right to castle anyway, under worse conditions.).

So 9...Kd8 is forced. (white is not even risking material here. gxh5 is always answered by Bxh6).

that should be all you need to see to embark upon such a variation. Clear gain, no loss. Now, see how quickly black's position disintegrates: 

10.d4! (By making way for the c1 bishop, this threatens Nxf6:).

Your 9.Nf5 allows black to exchange on f5, making an immediate loss into a position you have to win again (I think you still can, but it's not an immediate knock out). Still, black missed the chance to exchange a pair of knights.

There were a couple of other cases where you gave black the opportunity to make things a bit more complicated, and where black gave you the immediate win back, but basically, after the first 4-5 moves, you played a good game, and were completely winning the bast majority of the time.

Good game.

P.S. - That 2...f6 opening your opponent played is a junk opening. Avoid it if you can:)