A logical game in which the goal is to enter a numerical digit from 1 through 9 in each cell of a 9x9 grid made up of 3x3 subgrids (called "regions"), starting with various digits given in some cells (the "givens"); each row, column, and region must contain only one instance of each numeral. Completing the puzzle requires patience and logical ability.

Complete with Save/Load System for your games, nice graphics , the ability to extract .html notes that will aid you in finishing a game , and infinite boards generated on the spot ,ASudoku can be very addictive.!