#Technique for solving sudoku puzzles software

The site allows you to display them at any time. All of the candidates of a Sudoku puzzle include all the possibilities for all the squares of a grid. Those puzzles which can be solved specifically by candidate highlighting.Ĭandidates of a square refer to the possible numbers that can be entered into that particular square.

Those puzzles which can be solved directly by using a visual diagram.

There are two principle solution methods.

#Technique for solving sudoku puzzles software

Other methods shall be added as the software is updated. The following basic methods for solving puzzles are listed below. In summary, the three different groups of a square are subject to the same constraints: They each contain the numbers from 1 to 9 which cannot be used more than once. For example, the central square belongs to the following three groups: Sudoku Terminology for this website:Ī ' grid' is a puzzle in the process of being solved or a solved puzzle, or any type of puzzle, as well as an empty puzzle.Ī ' Sudoku puzzle' is an incomplete grid which contains only one solution.Ī ' row' is a horizontal line of nine squares.Ī ' column' is a vertical line of nine squares.Ī ' group' refers to either a row, column or region.Įach square belongs to three different groups. Consequently, each row, column and region, when taken individually, cannot contain a number of the same value more than once. Each row, column and regions of 3 x 3 includes these 9 numbers.

Each square contains one number from 1 to 9. A Sudoku puzzle is a grid of 9 x 9 squares, subdivided into 9 regions of 3 x 3 squares.