Normal sudoku rules apply. Identify 9 Balance Cells in the grid such that there is one Balance Cell in every row, column, and 3x3 box. Each Balance Cell must contain a different digit. The value of a Balance Cell is the arithmetic mean of the up to 4 digits orthogonally adjacent to itself, regardless of the digit in the Balance Cell. The sum of the values of every cell in the grid is 405. The values of cells in a cage must sum to the total in the top left corner. Digits may not repeat within a cage, but values may.