Breaching the Gates of the Vienna Variation by FM Dennis Monokroussos
The Vienna Variation is one of the sharpest options available to Black against 1.d4, and when Black plays sharply it's especially important to be precise - one mistake can be fatal. That's what happened in this 2016 game. White gambited a pawn and then a piece for two pawns for a very dangerous attack. Black had one way to survive, but to find it and work it out over the board (rather than on one's engine in the comfort of one's study) was asking a bit too much of Black. She didn't manage it, and lost a very nice game.