Normal sudoku rules apply. Adjacent numbers along a green line must differ by at least 5. Digits separated by a white dot are consecutive. Digits separated by a black dot are in a 2:1 ratio. A number outside the grid indicates the sum of the first X digits, where X is the digit in the closest cell to the clue. Numbers may not repeat in a cage. For the answer check to work, no large digits should be entered outside the grid.