The knight is a lousy defensive piece

1/22/2010 – When left on its own, a knight frequently has difficulties holding together one flank in problems. If the pawns are not occupying one of the few formations which suit it, it generally cannot manage the task. This motif underlies the piece sacrifice 35.Rxc4!? Rxc4 36.Nxc4 Kxc4 37.Ke4! - played in the game Lock-Webb from the Masters in Hastings - with which White set his opponent serious practical problems. How would you evaluate the resulting position? Can Black still hold the draw or will the white pawns triumph? GM Karsten Müller has analysed the position for Chess Base Magazine Online.