Normal sudoku rules apply. Each grey (fortress) cell must be higher than any white cell it borders. Along thermometers, digits increase from the bulb.
If you prefer to play directly in sudokupad then click below.
Normal sudoku rules apply. Each grey (fortress) cell must be higher than any white cell it borders. Along thermometers, digits increase from the bulb.
If you prefer to play directly in sudokupad then click below.