Sharpen your mind with Sudoku 7309, a medium-level puzzle published on May 12, 2026. This classic number game challenges you to fill a 9x9 grid so that each row, column, and 3x3 subgrid contains every digit from 1 to 9 exactly once.
How to Play Sudoku
Sudoku is a logic-based puzzle. No arithmetic is needed; only reasoning and patience. The grid is partially filled with given numbers, and your task is to deduce the missing ones.
Rules
- Each row must contain digits 1-9 without repetition.
- Each column must contain digits 1-9 without repetition.
- Each 3x3 box (outlined by thicker lines) must contain digits 1-9 without repetition.
Use the clues provided to eliminate possibilities and find the unique solution. Start with the most constrained rows, columns, or boxes.
Tips for Medium Puzzles
Medium Sudoku puzzles require more advanced techniques than easy ones. Look for hidden singles, where a number can only appear in one cell within a row, column, or box. Also, use pencil marks to keep track of candidates.
If you get stuck, take a break and come back with fresh eyes. Practice improves your speed and pattern recognition.
Enjoy this puzzle from The Guardian. For more, check previous editions or try harder levels.
