Normal sudoku rules apply. Cells joined by an X sum to 10; cells joined by a V sum to 5. Digits increase along thermometers from the bulb. A clue outside the grid gives the sum of the digits in the indicated diagonal.
Normal sudoku rules apply. Cells joined by an X sum to 10; cells joined by a V sum to 5. Digits increase along thermometers from the bulb. A clue outside the grid gives the sum of the digits in the indicated diagonal.