(Source: Wikipedia, Photo: Paweł Suwarski)
In the first, she was the victim:

Dzagnidze-Muzychuk, Maia Chiburdanidze Cup 2009, Round 6: White to move and win.
And in the second, she got to be the hero:

Muzychuk-Galojan, Maia Chiburdanidze Cup 2009, Round 8: White to move and win.
The solutions can be found here.