Part 1: Normal Fillomino rules apply (see below). Part 2: Normal LITS rules apply (with the created regions from the Fillomino). Part 3: Normal Star Battle rules apply (with the created unshaded regions from the LITS (NOT the Fillomino regions)). Each Part may (if solved independently) have more than one solution but only one grid fill will satisfy all three Parts together. Fillomino rules: Divide the grid into regions of orthogonally connected cells. Each cell should contain a number equal to the size of its region (ie the number of cells in its region). The size of any region must not be the same of an orthogonally adjacent region. LITS rules: Place one tetromino into each region. No two tetrominoes of the same shape may share an edge - reflections/rotations count as the same shape. All tetrominoes must form a single orthogonally connected area. No 2x2 area of the grid can be completely covered in tetrominoes. Star Battle rules: Place 1 star in each row/column/region such that no two stars touch each other, even diagonally. For the solution check function to operate, place a 1 in every cell of the final grid that contains a star (and leave other cells empty).