Sigmund's F*cking Kleuter Sudoku solver

This program was conceived as an answer to the frustrations with solving sudoku′s of ‘Sigmund’, a comic in the dutch newspaper de Volkskrant. He couldn′t solve a 4x4 sudoku. This program solves all NxN puzzles (N=4, 6, 8, 9, 10, 12, 15, 16, 20, 25 or 30). The solution can be added to the puzzle, see the examples. A solution can also be used to design a solvable puzzle. Version 2.1 contains extra reduction methods which give the algorithm a large boost. Also, for N=16 and larger there is started a new solution process for every available CPU (core) in the system, which multiplies the speed almost with the number of processors. The speed has tripled again by removing unnescessary checks and code optimization. The program is packed as a installer with a dual language (dutch/english) version. The icons give a link to the installers for version 2.10 and 3.00 with full support for irregular formed puzzles respectively. (version 2.10.117) (version 3.00) Theo van Soest, august 17, 2010