Hello,

I started e5 and automatically he attempts to ruin my starting position. I attempt to transpose the opening into the blackmar diemar gambit, and he neglects to take my pawn. BUT manages to find another way to capture it.

I have copied some of the opening moves, not the whole game. Can someone tell me if what i did was a legitimate opening? cheers.

This is mostly just sidelines, not mainlines. (Which is usually the best option.) Also, taking on e4 (2...dxe4) after white plays 2.d4 isn't very good.

I see 4. f3 and 5. Qxf3 as questionable moves... especially the latter. 5. Nxf3 would have been much better because it would have developed your knight and prepared to castle, along with keeping two defenders on your d pawn. 

Well, there are a lot of odd looking moves in the opening, that's for sure.

I prefer 4...Bf5, and I think Black is better. 4...exf3 is just giving White what he wants

But 5.Qxf3 looks like a clear error. 5.Nxf3 develops rapidly and prepares castling and pressure on the open f-file. 

7.Qf2 is a game losing mistake. 7...Ng4! and we can set the pieces up for a new game (check out the final fork on c2, forking e1 and e3). Ng4 remains a powerful move for Black on moves 8 and 9 as well

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I guess you are black?  If so, you played the opening ok considering the skill level of the game overall.  I'd say you started to go wrong on move 7, where you play ...Nc6.  A basic tenet of the opening is to avoid moving the same piece multiple times.  This is particularly important when your opponent is sacrificing pawns and you are falling behind in development, you should be very wary about wasting time when the center is open, especially if you are already behind.

Another good opening rule in gambit positions is that you can usually take the first pawn, but taking a second pawn is very dangerous.  Notice how you open so many lines for white in these lines.  With this in mind (and without too much analysis) I would immediately consider 7... e5! rather then retreat the knight.  If, say, 8. O-O-O Bd6! I am returning one pawn back to white but am making sure that white's development advantage doesn't get too far out of control.  Of course a computer engine can check the tactics for you.

Finally, it's generally wrong to block your center pawns, so 8...Be6 is something of a positional blunder.  White's activity is getting dangerous, and the bishop makes it hard to develop your kingside.  8...Bd7, anticipating the white rook coming to the d file, would have been a better placement of this bishop.

Hope that helps.  Good luck!

I havent been able to access a computer until now.

I was the white pieces, transposing it into the blackmar diemar.

(i know, i said i started e5 - sorry :( e4)

Thanks for the analsyses NKT73. Really appreciate it.

I think that c5 on move 14 would be an error because bishops hits c5, still covered by the queen?