Find the unexpected mate
This is a game that i played today.I dont know how i found this mate but i thought this could be a great puzzle for you guys so enjoy the puzzle :)
White's moves are not best.
3. Nf3, Nd4 and the mate is delayed.
2. Nf3 or 2. d3 or 2. Nc3 and the mate is avoided (I believe). Regardless, there are a number of moves that delay or avoid mate on White's first move!
A mating puzzle should always have a clear, forced mate. This is not a puzzle, it's just a series of moves from a game you played. That being said, good job finding it in your game.
it's also not a suprising checkmate. It took me about 3 seconds to find the first move because as soon as the white moves the pawn on g3 then the possibility of Qh4+ is screaming out. Also, as gambit1985 correctly points out, for a good puzzle white's moves should be forced. In this case they are not forced; they are not even the best moves.
Nevertheless, it's an interestng game (though short) and thanks for posting it.