- The image presents a 9x9 grid divided into nine 3x3 subgrids, with some cells shaded blue.
- The task is to determine the number of shaded cells in each row, column, and 3x3 subgrid.
- Count the shaded cells in each row: Row 1 has 2, Row 2 has 2, Row 3 has 1, Row 4 has 3, Row 5 has 2, Row 6 has 2, Row 7 has 2, Row 8 has 2, Row 9 has 2.
- Count the shaded cells in each column: Column 1 has 2, Column 2 has 2, Column 3 has 2, Column 4 has 1, Column 5 has 2, Column 6 has 2, Column 7 has 2, Column 8 has 2, Column 9 has 2.
- Count the shaded cells in each 3x3 subgrid: Top-left has 3, Top-middle has 0, Top-right has 3, Middle-left has 0, Middle-center has 5, Middle-right has 0, Bottom-left has 3, Bottom-middle has 0, Bottom-right has 3.
Parent Tip: Review the logic above to help your child master the concept of free printable diagonal sudoku.