Sudoku is a terrific brain game as well as a logic test. Your goal is to fill a 9x9 grid with numbers 1 through 9 per row, column, and 33 segments.
You can choose between three difficulty levels: beginner, intermediate, and advanced. When you select a higher level, the number of given numbers reduces, making it more difficult to complete the problem.
Concentrate on a single number, such as one that appears frequently.
Begin with rows, columns, or 3x3 blocks that are already full.
You can write down the possible numbers for each square in the squares. When you fill a number in the same row, column, or 3x3 block, it is removed from the possibilities of the other squares in the row, column, and block. This way, you'll only have one final option to fill out.
There are numerous ways for filling gaps and deleting candidates. We've listed two of them below, but there are many more that you'll find as you play!
If there is only one applicant, enter a number. For example, only the number 9 can be placed in the green box because all other numbers are already in the green box's column, row, or box.
You can eliminate candidates by remembering that each number appears only once in a row, column, or 3x3 block. For example, a 9 must appear in one of the green boxes. This indicates that a 9 cannot be entered into any of the X-marked boxes.
