Sudoku Solver by Gwerdy Software

You can now solve SuDoku puzzles in seconds using Gwerdy’s SuDoku Solver. SuDoku Solver is a freeware Windows 9X/2000/ME/XP program designed to help solve SuDoku puzzles. The solver uses only logical methods that would be employed by a human solving the puzzle and explains how each square of the puzzle was solved. The solvers algorithm can also act as a helper by revealing a single square’s value, providing a hint if you want to solve a puzzle yourself but are a little stuck. (Note : This program does not create new puzzles)

The SuDoku Solver’s algorithm only uses logical arguments to solve the puzzles. It does not use ‘trial and error’ methods. For anybody interested in an explanation of the algorithm it employs to solve your SuDoku then please read on. The Solver stores two grids (as arrays), one is the actual SuDoku grid itself, and the second contains all the ‘possible values’ for each square. Initially all values (1-9) would be possible for all squares of course. The algorithm then tries a number of steps to solve the puzzle, stopping when it either solves the SuDoku or all the following steps fail to find any new values.

Before moving onto how the SuDoku Solver algorithm finds unknown squares lets first see what happens when the algorithm adds a new value to the grid, either from the initial values entered by the user or from using the solve methods below. When the solver knows the value of a square it will adjust the ‘possible values’ grid for all other relevant squares.

Sudoku Solver by Gwerdy Software System Requirements:
+ Windows 95,98,ME,2000,XP
+ 200 MHz+ processor, 64 Mb+ memory
+ File size: 635 Kb
+ License: Freeware
Download Sudoku Solver by Gwerdy Software