Pogo has released a surprise event for Monopoly Sudoku!
Monopoly Sudoku - Solve 20 puzzles on medium difficulty or higher (600 Pogis)
To find and activate it, just visit Challenge Central.
This event ends on November 14th.
https://www.pogo.com/challenges?filters=SUPER%2CEVENT&sort=RELEASE_DATE_REVERSED
(https://i.imgur.com/XMa9a47.png)