After the first move (which is forced), move to the left and clear off that section fully first. You should get to the below position:
Then, move down. Leave the top six squares for last (they are the “end“).
After the first move (which is forced), move to the left and clear off that section fully first. You should get to the below position:
Then, move down. Leave the top six squares for last (they are the “end“).