

Find the Naked Pairs When a box has two spots in which you can enter only the same two candidate numbers (let’s say 6 and 8), that’s a good clue! When that happens, take a look at the other spots in that box. If you find one, that candidate must be in the correct spot, regardless of other candidates in that same spot. Once you’ve filled in all the candidates, look for a candidate that appears only once in a particular row, column, or box. Candidates are essential when solving difficult puzzles. Many beginners don’t bother to use candidates, but that’s a mistake. The candidates will appear as little numbers. You can do this by clicking the button with the large black dot, and then adding candidates to the spot. When solving a puzzle, try filling in empty spots with all the candidates that might fit there. Fill in the CandidatesĪ “candidate” is a number that could fit in a spot, even though other numbers might fit there too. That makes it easier to place the remaining 7s. Use this to figure out which rows, columns, and boxes don’t yet have a 7. You can click a 7 on the board to highlight all five 7s in the puzzle. For example, if the 7 button has a small 5 in the top right corner, that means there are already five 7s on the board. Start with the big numbers that appear most often. Each of these buttons has a small number in the top right corner - that’s the number of times that the big number already appears on the board. Spot the missing numbersīeneath each puzzle are buttons you use to enter the numbers 1 to 9.

Once you’ve solved that piece of the puzzle, move on to the next part. Start by focusing on a column, row or box. Any one Sudoku puzzle contains multiple puzzles within it. When solving Sudoku puzzles, players often feel as if they need to solve the entire puzzle from the beginning. Try using the following techniques to solve Sudoku puzzles. Try timing yourself to see how fast you can beat a given puzzle. You can change the difficulty level in Sudoku from beginner to intermediate or advanced if you want to solve more difficult puzzles. Use the orange guide to see which numbers you've already used in each row, column, and box. Playing sudoku daily can boost your concentration, ease depression and even prevent Alzheimer's disease.To play our free online Sudoku game, tap and hold a number to lock it and you can use it for multiple cells. Use the numbers 1-9 in each of the 9 rows, 9 columns, and 3x3 boxes of the Sudoku grid. Can you imagine that there are 5,472,730,538 possible sudoku puzzles? The Times in London helped spread Sudoku to Western culture by publishing its first daily sudoku in 2004. Therefore, in the sudoku game, we have to fill in numbers without repetition. What is Sudoku? 'Su' in Japanese means numbers while 'Doku' means single. The best part of the game: This free online sudoku game delivers a new puzzle each and every day! Interesting Facts about Sudoku The goal of the game is to fill every square on the grid with a number from 1-9, where the numbers can only appear once in every row, column and 3x3 box.

You can place notes, find sudoku tips, manage the timer and save the sudoku game by clicking the menu bar in the top-right corner. Worried about damaging your sudoku puzzle with eraser marks? When you play our free online sudoku game, there's no need! You can choose easy sudoku, medium sudoku, or even sudoku for experts if you are confident.
