Normal sudoku rules apply. Along thermometers, digits increase from the bulb. Purple lines are palindromes, which read the same both ways. A number in a circle must appear in at least one of the four surrounding cells.
Normal sudoku rules apply. Along thermometers, digits increase from the bulb. Purple lines are palindromes, which read the same both ways. A number in a circle must appear in at least one of the four surrounding cells.