Why is landing a probe on the Far Side significantly more complex than landing on the Near Side?

Direct, real-time radio communication with Earth is impossible due to the Moon blocking the signal.

Landing on the far side presents a unique engineering challenge primarily related to communications. Because the bulk of the Moon physically blocks the direct line of sight between the landing site and Earth, continuous, real-time command and control signals cannot be sent or received directly. To overcome this, specialized infrastructure, such as a relay satellite like Queqiao positioned at a Lagrange point, must be utilized to bounce signals back and forth between the lander and mission control on Earth, adding significant complexity to the operation.