#Easy printable sudoku how to
#Easy printable sudoku free

Of course 'Undo' and 'Redo' can be helpful too - the icons are just right of the board.Īnd be sure to open the Settings page (using the gear icon) and try various error highlighting modes - that's the indispensable tool for getting the hand in quickly finding the right candidates.

#Easy printable sudoku free

Just click the icon again to switch to placing big 'final' decisions (you can erase any of these too in case you change your mind). Youll have a funtastic time with our great selection of free printable puzzles and online puzzles and games: Sudoku, Word Search, The Daily Crossword. Just click the 'note' icon - now every number you put in a cell will be a small note alongside other candidates.

Just like in a paper Sudoku, you can make 'small pencil notes' in the cell of which numbers can go there. No matter what trick you use the most helpful thing for solving a Sudoku is 'penciling the candidates'. Now draw a horizontal and vertical line from every 4 on the board (you remember you can't place another 4 in a row or column) - it will quickly become clear there are almost no cells left where you can actually put it. Choose a number that occurs most on the board already (so there's one or two instances left to place) - there are indicators below the board to help you find the best one. The more advanced technique you can use for a harder puzzle called 'scanning': it exploits the fact that any given number from 1 to 9 can occur only nine times in a completed Sudoku puzzle. Now you will notice the more and more rows, columns and regions become almost complete and easy to deduce - the complete puzzle picture becomes clearer with each move. Now try to use the same technique but now with an almost filled-in row or column - find the one where only one number missing (then the answer is obvious) or two ones missing - try both options and figure out the right one.

Which one is correct? Just place 3 and look across the whole row, then the column: is there a duplicate? Try the same with 7 and you'll get the correct option.

#Easy printable sudoku how to

For example, if a 3x3 square lacks just the numbers 3 and 7, we have only two options on how to place these two remaining numbers - 3 in a first cell and 7 in a second one or vice versa.

You will certainly see a square where just one or two numbers are missing. Start a Sudoku puzzle on an Easy level to learn all the techniques quickly. Sounds like a tricky task? Just start scanning the board and you'll find all clues you need, one by one, and get the puzzle solved. So each number from 1 to 9 occurs only one time in each row, column and region. Now you just need to fill the remaining cells with numbers from 1 to 9, obeying the only rule:Įach row, column or region must not contain repetitive numbers. The more cells are pre-filled the easier the puzzle. You start a Sudoku puzzle with some cells already filled in with numbers. So each row, column or region contains nine cells. This puzzle is a sample of what you will find in our introductory book Sudoku Under the Sea. More advanced puzzlers will want to look at some of our other sudokus. It is rated hard, but really it is only hard for beginners. Easy Killer Sudoku online levels offer more numbers already placed from the start. Once your little puzzle solvers have advanced a little, they will be ready for this sudoku. Killer Sudoku rules are quite simple and intuitive and do not require any special knowledge or skills. In each Sudoku puzzle you have a 9x9 grid, divided into nine 3x3 square regions (you can just look above to get an impression). This makes easy Killer Sudoku puzzles an incredible fit for beginners. Scan: Continuously scan rows, columns, and regions to make sure that the basic and additional rules are being adhered to.DONATE FEEDBACK More Games Puzzles Solitaire Mahjong How to Play Sudoku.

Double Pairs: If two cells in a row, column, or region can only be two numbers (like 3 and 4), exclude these numbers from other cells in that area.

Exclusion: If a number is already present in a row or column, look for other places in the respective region to place the remaining numbers.

Single Possibility: If a cell is the only one in its row, column, or region that can contain a particular number, place that number there.

Use of Numbers: Only numbers 1 through 4 are to be used to fill the grid.

No Repetition: A number cannot appear more than once in a single row, column, or region.

Objective: Fill every row, column, and region with numbers 1 through 4.

Pre-filled Numbers: Some cells contain numbers to guide the solver.

Grid Structure: The puzzle features a 4x4 grid, divided into 2x2 regions.

Some cells are pre-filled with numbers, serving as clues to assist in solving. The puzzle consists of a 4x4 grid, which is further divided into four 2x2 subgrids, referred to as 'regions'. Sudoku 4x4 is a simplified version of the classic Sudoku, tailored especially for beginners and children due to its straightforwardness.