Sudoku 7412 is an easy-level puzzle published by The Guardian. The grid is partially filled with numbers, and the goal is to complete it so that each row, column, and 3x3 box contains the digits 1 through 9 exactly once.
Starting Grid
The puzzle provides a set of initial clues. For example, the top-left cell may contain a 5, and the top-middle cell a 3. These clues are fixed and cannot be changed.
Solution Strategy
To solve, use logic and elimination. Look for rows, columns, or boxes with only one missing number and fill it in. Continue this process, checking each possibility until the grid is complete.
For instance, if a row has all numbers except 8, and 8 can only go in one cell, place it there. Repeat for all rows, columns, and boxes.
Completed Grid
The final solution shows all numbers correctly placed. Verify that each row, column, and box contains 1 through 9 exactly once. The solution is provided in the original article.
