All the other nines may be crossed off leaving a 6,8 pair, 6,7 pair, a single 7, and a 4,6,8 triple. In the example to the left, you can see the naked single is the nine. If there is one cell that contains a single candidate, then that candidate is the solution for that cell. If there aren’t any other candidates showing, Sudoku players call this a naked single.Įvery naked single allows us to safely eliminate that number from all other cells in the row, column, and region that the naked single lies in. Sudoku Tips -Naked Single CandidatesĮvery Sudoku puzzle will have cells that have only one possible candidate. In these cases use my free blank grid with candidates worksheet. The paper version, board games, and handhelds usually lack this capability. Some online puzzles allow you to pencil in your candidates. Some Sudoku computer programs have the option to show you all the possible candidates. This leads me to my first of several Sudoku tips and that is pencil in all the possible candidates for each cell, row, column, and region. I prefer to use the process of elimination to solve Sudoku. You can use logic retaining in your memory the possible candidates for each cell, row, column, and region or you can write the candidates down. There are two ways to approach the Sudoku Solving process. To solve the hardest puzzles and games, use advanced strategies such as X-Wing, XY-Wing, and Swordfish. Apply these Sudoku tips and you will solve most Sudoku puzzles. It may seem impossible to you to solve anything but the most simple Sudoku puzzles. When you begin to play Sudoku, you probably will have moments when you reach a roadblock.
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