Normal sudoku rules apply. Numbers in circled cells reveal the number of mines (factors of 90) that are in the surrounding cells not including the circle itself (so a max of 8 cells). All such circles are provided.
Normal sudoku rules apply. Numbers in circled cells reveal the number of mines (factors of 90) that are in the surrounding cells not including the circle itself (so a max of 8 cells). All such circles are provided.