Question 1

What is classic sudoku?

Accepted Answer

Classic sudoku is the original 9x9 number puzzle where you fill a grid so each row, column, and 3x3 box contains the numbers 1-9 exactly once. It's the most popular version of sudoku and a great brain training exercise. Play free classic sudoku at Sudoku Slash.

Question 2

How do I play 9x9 sudoku?

Accepted Answer

To play 9x9 sudoku: 1) Look at the pre-filled numbers, 2) Find cells where only one number can fit based on the row, column, and 3x3 box rules, 3) Fill in numbers 1-9 without repeating in any row, column, or box. Start with easy puzzles and work up to expert difficulty.

Question 3

What is the best free sudoku game online?

Accepted Answer

Sudoku Slash offers free classic sudoku with 4 difficulty levels (Easy, Medium, Hard, Expert), hints, error checking, and a timer. It also features unique modes like Multiplayer Sudoku, Foursquare Sudoku, and Waterfall endless mode - all completely free.

Question 4

Is sudoku good for your brain?

Accepted Answer

Yes, sudoku is excellent for brain health. It improves logical thinking, concentration, memory, and problem-solving skills. Regular sudoku practice can help maintain cognitive function. Classic 9x9 sudoku is the perfect daily brain training exercise.

Classic Sudoku

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Classic Sudoku

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