The famous Japan puzzle with great art, 3 difficulty levels, load/save game progress and user friendly interface. The objective is to fill a 9×9 grid so that each column, each row, and each of the nine 3×3 boxes (also called blocks or regions) contain the digits from 1 to 9 only one time each. Initially, the puzzle setter provides a partially completed grid. Sudoku was popularized in 1986 by the Japanese puzzle company Nikoli.
Minimal requirements: Windows 2000/XP, processor 600 Mhz or better, 64 Mb RAM, 25 Mb of hard drive space, and 16 Mb of video memory.