![]() For example, while checking which number is correct for a given space, you can determine it by eliminating the other numbers by checking for their existence in the other row/column/3×3 sub-grid it is common to. This process helps you secure the numbers to be included in each square by checking which numbers are already present in the grid. You can find out which number should go in each of the empty spaces by using the process of elimination. If not, you might have missed, misplaced, or inserted a wrong number. To figure out if you have missed any numbers, repeated a number, or placed a number in the wrong position, you can sum up all the numbers of the particular row, column, or the relevant 3×3 sub-grid to check if it adds to 45. Rule-3: The sum of each row and column should be 45 ![]() Rule-2: None of the numbers can repeatĪ simple rule governs the game: While filling up the boxes with numbers, you need to ensure that none of the numbers you place in any particular box repeats in any other part of the row, column, or 3×3 sub-grid. Each row, column, and box sub-section consists of 9 square boxes where numbers are entered. Sudoku is commonly played on a 9×9 grid, where each row, column, and 3×3 sub-grid needs to be filled with numbers ranging from 1 to 9. Rule-1: You can use only numbers from 1 to 9 to fill the grid Rule-4: Use the process of elimination.Rule-3: The sum of each row and column should be 45.Rule-2: None of the numbers can repeat.Rule 1 – You can use only numbers from 1 to 9 to fill the grid.Here are 4 Key Sudoku rules that you need to keep in mind while solving the puzzle: As you progress in the game, you need to consider some fundamental rules that inflict restrictions and make it difficult to solve the puzzle. ![]() To play Sudoku, you need to be aware of the numbers from 1 to 9 and have the capability to think logically and efficiently. It is a puzzle based on patience, efficiency, and logic.Īs many of you might misunderstand, Sudoku is not entirely based on mathematics. Playing Sudoku helps in increasing your thinking, problem-solving, and cognitive abilities. The game is played on a grid of 9×9 spaces. Sudoku is a logic-based game that can be designed in numerous different combinations. Step 4: Decode the numbers within each square.Rule-3: The sum of each row and column should be 45.Rule-1: You can use only numbers from 1 to 9 to fill the grid.
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