Sudoku puzzles are logic-based number placement games typically played on a 9x9 grid. The grid is divided into nine smaller 3x3 boxes. The objective is to fill the empty cells with numbers from 1 to 9, ensuring that each number appears only once in each row, column, and 3x3 box. These puzzles come in varying levels of difficulty, from easy to expert, depending on the number of pre-filled cells. Sudoku helps improve problem-solving skills and concentration, making it a popular pastime for people of all ages. Many enjoy solving them in newspapers, books, or online platforms.