This training game isn't a miniature in fact, but essentially is one in spirit. White makes a big strategic error on move 13, prematurely moving ahead with b4 and prompting exchanges which leave all of the chances with Black. This is in large part due to my unfamiliarity with the Symmetrical English structures, so the game was at least valuable from the perspective of opening preparation and learning. Moves 10-13 are particularly instructive in this regard, with some very different paths to follow.
As a little bit of background, I had just hung a piece in a "normal" training game and decided that this behavior should be punished somehow, the mechanism to deliver said punishment being a training game against the full-strength Chessmaster. Its opening book is both good and varied, taking me out of normal practice around move 5. With my limited experience, I am however finding that the Symmetrical English is not particularly dangerous for White as long as he doesn't try to get too much out of it. Reasonable moves were sufficient through move 10 and even the sub-par continuation I chose after that wasn't bad, until move 13. After that, a classic bind and squeeze is conducted by Black.