Standard Fillomino rules apply: divide the grid into regions of orthogonally connected cells, and place a number in every cell equal to the size of its region (ie the number of cells that region contains). Regions of the same size cannot share an edge. Some numbers are already given. Every Fillomino region contains a unique cell (called the Top Right Boi!): looking at the region, there can be no cell in the region that is either further to the east or further to the north than the Top Right Boi cell.