Sudoku

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Daily Sudoku Game

Play new Sudoku puzzles every day. Choose your difficulty and fill in the grid with the correct numbers.

Sudoku is a widely popular puzzle game that blends logic and problem-solving skills, offering both a relaxing pastime and a mental workout. The game is played on a 9x9 grid divided into nine smaller 3x3 sub-grids. The objective is to fill the grid with numbers from 1 to 9 so that each number appears exactly once in every row, column, and sub-grid. Though it revolves around numbers, Sudoku requires no mathematical computation- it's purely a logic-based activity.

Tips to Win

Start with Easy Wins

Begin by scanning rows, columns, and boxes for numbers that are almost complete and figure out the missing numbers.
Look for single candidate cells where only one number fits without breaking the rules.

Use the "Pencil Mark" Strategy

Use the Pencil tool to pencil in all possible numbers for a cell. These "candidates" help visualize options.
As you solve more of the puzzle, erase candidates that are no longer valid.

Focus on One Number

Pick a number (e.g., 1) and try to place it across the grid. Check rows, columns, and boxes to determine where it can go.

Eliminate Possibilities

Use process of elimination to narrow down options. Check intersections of rows and columns for valid placements.

Practice Regularly

Solving puzzles frequently helps you recognize patterns and improve speed.
Play a new puzzle each day!

FAQ

Is Sudoku a math game? While Sudoku uses numbers, it does not involve arithmetic. It is a logic puzzle requiring reasoning skills, not calculations.
How long does it take to solve a Sudoku puzzle? It depends on its difficulty level and your experience. Beginners might take 30 minutes or more for an easy puzzle, while seasoned players can solve them in under 10 minutes.
Is Sudoku luck-based? No, Sudoku puzzles are entirely solvable using logic and deduction. Guessing is not necessary if the puzzle is well-designed.

Brain Benefits of Sudoku

Playing Sudoku regularly sharpens critical thinking, pattern recognition, and decision-making skills. Studies suggest that problem-solving activities like Sudoku can enhance memory, focus, and attention span by engaging the prefrontal cortex—the brain area responsible for cognitive functions. For older adults, Sudoku may contribute to delaying cognitive decline and maintaining mental agility. Additionally, solving puzzles fosters a sense of accomplishment and reduces stress, making Sudoku not just a game but a tool for mental wellness.

Sudoku's universal appeal lies in its combination of simplicity and complexity, making it a timeless challenge suitable for players of all ages and skill levels. Whether you're a casual solver or a dedicated enthusiast, Sudoku can provide hours of engaging brain exercise while helping you strengthen your logical reasoning abilities.

How to Play

The objective is to fill a 9x9 grid with digits from 1 to 9 such that:

Each row contains all numbers from 1 to 9, with no repeats.
Each column contains all numbers from 1 to 9, with no repeats.
Each of the nine 3x3 sub-grids (boxes) contains all numbers from 1 to 9, with no repeats.

Understand the Grid

The grid consists of 9 rows, 9 columns, and 9 smaller 3x3 boxes.
Some numbers are pre-filled (these are called "givens").
Your task is to fill in the empty cells.

A number can appear only once in

Each row
Each column
Each 3x3 box

Start Solving

Step 1: Look for obvious placements

Identify rows, columns, or boxes that are nearly complete and figure out which number is missing.
Example: If a row has the numbers 1, 2, 3, 4, 5, 6, and 7, then the missing numbers are 8 and 9.

Step 2: Use elimination

Focus on individual numbers. Check where a specific number can go in a row, column, or box.
Example: If the number 5 is already in a row, it cannot be repeated in that row.