Both players have a potential back rank weakness as neither king has an escape square.
Alexander Alekhine (playing White) sees a way of exploiting this.
Play the miniature game (17 moves) to find out
Video how to exploit back rank weakness
Video another Alekhine brilliancy
Chess books: 365 Chess Master Lessons - instructive short games
Many winning combinations are based on pins. A piece pinned when it is attacked cannot move without a more valuable piece behind it being captured.
Of course, if the king is behind the piece that is pinned then that piece cannot move.
In the diagram both sides can take advantage of deadly pins.
Can you see how White can win material ? View
Can you see how Black can checkmate ? View
Three more to have a go at: