Laura can defeat the knight by executing the first move in time. If this is not done, the knight will push Laura into the pit. If Laura falls into the pit, approach the metal rungs lining the pit wall. A beetle symbol may appear here. To defeat the knight, follow the on-screen controller hints displayed after Laura reaches the top of the rungs.
Timing is crucial.
Press each button immediately after prompted. Press Left when prompted to move Laura out of the way of his sword. The knight points his sword inches from her eye. Press Right when prompted to move Laura away from another swing. Laura slips and hangs from the edge of the pit.