Sudoku is an exciting logic puzzle in which you have to fill a 9x9 grid with numbers from 1 to 9. The goal of the game is to make sure that in each row, column and each of the nine 3x3 blocks, each digit occurs only once.
Rules: Grid: The game is played on a 9x9 square divided into nine smaller 3x3 squares. Numbers: Each number from 1 through 9 must appear only once in each row, each column, and each 3x3 square. Starting Numbers: Some squares are already filled with numbers. Use them to logically deduce other numbers. Strategy: Examine the grid: Look at the filled cells and identify what numbers might be in the empty cells. Look for single solutions: Start with cells where there can be only one valid number. Use exclusion: If there are already numbers in a row, column, or square, exclude them from the possible numbers for the empty cells. Logical methods: - Hidden singulars: Determine which numbers can only go into one cell. - Pairs and Triples: When two or three squares have limited choices of numbers. Regular check: Keep track of the placement of numbers to avoid repetitions. Reversing mistakes: If you make a mistake, feel free to retrace your steps and try other options.
