Here is the position as Black on the move. I had one second to figure out mate in three. Unfortunately, my clock expired in this 3-minute game. Note that White moves his Queen on move 17 and white's queen is sitting out in left field the whole game, until he moves it back to its starting square d1. In effect white was playing the game a queen down from move 17 until the end of the game.
Black to move and Mate in Three
Three minute game below as played out on ICC with time control of three minutes.