SUDOKU SOLVER I'm not a fervent sudoku solver but I always wanted to try implementing a program to solve the puzzles faster than I can. This is my first attempt. This program uses the Qt library for its user interface, you will need to have it installed to run the program. BUILDING INSTRUCTIONS Basic building instructions mkdir build cd build ../configure make The binary will be called 'sudokusolver' and be located in the 'src' directory. USAGE Running the program will show the main window, which consists of a basic sudoku grid (9x9) and a number of buttons. The SAVE button allows you to save the current sudoku puzzle to a file, like wise, the LOAD button allwos you to load a previously saved sudoko. The file format is extremely simple: the files can be opened and edited with a text editor. Note that empty (unsolved) positions are saved as well. The CLEAR button will clear any previously entered numbers. The STEP button can be used to solve the puzzle. If clicked, the program will verify each empty cell. If a unique solution can be found for a cell, it will be added to the solution. You will probably need to click STEP several times to completely solve a puzzle. LIMITATIONS The current solving algorithm will only find a complete solution as long as there are cells for which a unique solution through elimination can be found. It cannot perform an exhautive search if the sudoko contains only cells for which at least 2 solutions can be found. COPYRIGHT This sudoku solver was written by Stijn "Ingar" Buys and is available under the terms and conditions of the GNU Public License (GPL). ingar@telenet.be htpt://ingar.satgnu.net