This is a game I played on the ICC against International Master Miodrag Perunovic.
I played 28. Qh5 to threaten mate in 2. To my surprise, he played 28.. Ne3?? allowing 29. Qxf7+, followed by Qxg7 mate.
28. Qh5 was a bad move. Black can simply defend the checkmate with Rf8, and the game is complicated.
From the diagrammed position, can you find the winning continuition that I missed? The answer is on http://chessanswers.blogspot.com