Nikolaj also moves the rope, eventually
Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!
Nikolaj throws a wide range of objects at the ducks - including buckets, a sledge, a basketball, and a life ring - before realising that the rope can be moved. Carrying the rope with him, he then walks right up to the remaining ducks and knocks them down with his hands. His total time is not stated, but he earns fourth place overall, so it must have been over 2 minutes.
(Written by Karl Craven)