The full logical solve of the hard mini sudoku for September 29 to October 5, 2026, 9 × 9. 57 steps, 4 techniques, no guessing. Step through it, or jump to any step below.
In the shaded box, 4 fits only in the marked cell.
In the shaded box, 3 fits only in the marked cell.
In the shaded box, 3 fits only in the marked cell.
In the shaded box, 3 fits only in the marked cell.
In the shaded box, 9 fits only in the marked cell.
In the shaded box, 8 fits only in the marked cell.
In the shaded box, 8 fits only in the marked cell.
In the shaded box, 3 fits only in the marked cell.
In the shaded box, 3 fits only in the marked cell.
In row 6, 9 fits only in the marked cell.
In row 8, 7 fits only in the marked cell.
In column 2, 8 fits only in the marked cell.
The outlined cells are the only places for 1 in their box, and they all sit in row 5. So the rest of row 5 can’t hold 1. The outlined cells are the only places for 5 in their box, and they all sit in row 5. So the rest of row 5 can’t hold 5. That leaves the marked cell with only one digit it can hold: 2.
The outlined cells are the only places for 4 in their box, and they all sit in row 9. So the rest of row 9 can’t hold 4. The outlined cells are the only places for 2 in their box, and they all sit in row 8. So the rest of row 8 can’t hold 2. Now 2 fits in only one cell of column 2: the marked one.
In the shaded box, 2 fits only in the marked cell.
In the shaded box, 7 fits only in the marked cell.
In the shaded box, 7 fits only in the marked cell.
In column 2, 6 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
In the shaded box, 2 fits only in the marked cell.
In the shaded box, 2 fits only in the marked cell.
In the shaded box, 5 fits only in the marked cell.
In the shaded box, 7 fits only in the marked cell.
In the shaded box, 8 fits only in the marked cell.
In the shaded box, 8 fits only in the marked cell.
In the shaded box, 8 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
In the shaded box, 6 fits only in the marked cell.
In the shaded box, 7 fits only in the marked cell.
In the shaded box, 5 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
The marked cell sees every digit except 2 in its row, column and box, so it must be 2.
In the shaded box, 2 fits only in the marked cell.
In the shaded box, 9 fits only in the marked cell.
In the shaded box, 9 fits only in the marked cell.
In the shaded box, 9 fits only in the marked cell.
The outlined cells are the only places for 6 in their box, and they all sit in column 6. So the rest of column 6 can’t hold 6. Now 6 fits in only one cell of row 7: the marked one.
In the shaded box, 4 fits only in the marked cell.
In the shaded box, 5 fits only in the marked cell.
In the shaded box, 5 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
In the shaded box, 4 fits only in the marked cell.
In the shaded box, 4 fits only in the marked cell.
In the shaded box, 4 fits only in the marked cell.
In the shaded box, 4 fits only in the marked cell.
In the shaded box, 6 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
In the shaded box, 1 fits only in the marked cell.
In the shaded box, 5 fits only in the marked cell.
In the shaded box, 5 fits only in the marked cell.
In the shaded box, 6 fits only in the marked cell.
In the shaded box, 6 fits only in the marked cell.
In the shaded box, 4 fits only in the marked cell.
In the shaded box, 6 fits only in the marked cell.
In the shaded box, 5 fits only in the marked cell.