Sudoku is a popular logic-based number puzzle that challenges players to fill a 9x9 grid so that each column, each row, and each of the nine 3x3 subgrids (also known as "regions" or "boxes") contain all of the digits from 1 to 9. The puzzle starts with some numbers already filled in, known as "givens" or "clues," which provide the basis for logical deduction.

The objective is to complete the grid by filling in the empty cells while adhering to the following rules:Each row must contain all of the digits from 1 to 9, without repetition. Each column must contain all of the digits from 1 to 9, without repetition.

Each 3x3 subgrid must contain all of the digits from 1 to 9, without repetition. Sudoku puzzles vary in difficulty, from easy to extremely challenging, depending on the number and placement of the initial clues.

The game does not require mathematical skills but relies on logic, pattern recognition, and problem-solving abilities. It is enjoyed worldwide by people of all ages as a stimulating and entertaining mental exercise.

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