Normal sudoku rules apply. Cage totals are shown in the upper left corner of the cage. Inequalities between cells point to the small of the two digits. Nine cells in the grid are “multipliers”. If a multiplier appears in a cage, then it multiplies the sum of the other digits in the cage to produce the cage total. For instance, if a cage contains 3, 4, 5, 6 and 3 is the multiplier, the cage total would be 3*(4+5+6)=45. A multiplier which is not in a cage has no effect. Each row, each column, and each 3x3 box contains one multiplier, and each digit appears as a multiplier once.