;(
A very simple and natural game in Morphy's style!

Incredible amount of accurate moves! I only saw one glaring error (b5?), two if you count a6 (which would be an error if all it did was stop a pin like you said.
By the way, the problem with b5 is that first and foremost, development should have come first. Second, it weakens control of c5/a5, making it diffucult to advance pawns, and creating outposts for your opponents knights. Third, controlling a4/c4 and vacating b7 doesn't do enough for your position to warrant using a tempo on it. Fourth, b5 blocked by far the best square for your bishop, as Bd7-Bb5 would have gotten rid of that bad bishop.
You should not use an entire move to stop a pin. It is an ENTIRE MOVE (although it is curiously sound in this case and would have been my move, because b4-b5 is blocked, and because of the previously mentioned plan Bd7-Bb5)

That was an odd opening for white. You didn't need to play a6 so quickly, you should be more concerned about development, maybe Bd7.

a strange opening and you play well, dont get me wrong - the game if fun to watch but i just hate when people call their games like Morphy style, Fisher style etc... i dont think anyone ever should compare himself to any such gigants, even if someone tops them, still, they led their game, you have yours. why compare or use their names? i think it as a sort of sacrilege...

Thank you for your humble analysis of my even humbler game.
Firstly, you are right about Bd7. After Bd7 it wouldn't be a problem to me to exchange my Knight for his Bishop. The idea behind 4... a6 was to try and lure White's b-pawn to b5, so after an exchange I tempo White's Bishop and have the a-file opened for my Rook. The problem is that I wanted to keep my Knight fairly developed on c6 and out of danger. That was also the reason for b5. Bd7 transposed later anyhow. Now, about the bad Bishop (MichaelAtMinoru), the backward c-pawn and the wasted tempo (gabrielconroy) - they weren't even important if you took a look at my opponent's play. Surely it's not good, but White couldn't exploit it! I prefer logic over blind following of principals, therefore the mentioned weaknesses didn't have a meaning and didn't play any important role in the game. And about what EnamouredKnight said, I MOST COMPLETELY AGREE WITH YOU. I didn't really think the game was played in Morphy's style, it was a marketing trick, since I felt a few of my last posts hadn't attracted almost anyone's attention.
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Here's a nice and simple 15min game I played as Black:
Err... hope you like it?