Final answer:
To solve the Tower of Hanoi problem with 4 poles and 4 disks, the minimum number of moves required is 9, as determined by the Frame-Stewart algorithm.
Step-by-step explanation:
The question you've asked pertains to the Tower of Hanoi problem, which in this case involves 4 poles and 4 disks. The classical Tower of Hanoi problem has a well-known solution, but the variant with 4 poles (also known as the Reve's puzzle) has no simple formula for finding the minimum number of moves. However, through systematic shuffling and the Frame-Stewart algorithm, we can determine that the least number of moves required to solve the Tower of Hanoi problem with 4 disks and 4 poles is 9.