Normal sudoku rules apply. The grid is covered in fog. Entering correct digits may clear fog. No guessing is required. There is one Eraser Cell in every row, column, and 3x3 box. The nine eraser cells all contain different digits. The value of an eraser cell is always 0. The value of non-eraser cells is the digit in the cell. Values along a thermometer increase from bulb to tip. Values in cells joined by a V sum to 5. Values in a cage may not repeat and sum to the total given in the cage’s top left cell. Digits MAY repeat in a cage. If two cells are joined by a green line the values in those cells must have a difference of at least 5.