Sudoku is a recently popular number puzzle game from Japan. You need to fill the grid with numbers in such a way that all rows, columns and 3x3 squares have all digits (1-9). These puzzles are printed daily on numerous leading newspapers. These puzzles are classified under 3-5 difficulty levels, so you know how difficult a puzzle is, before solving it. All our puzzles are guaranteed to have one and only one solution.The software includes three varietiesof sudoku: Regular sudoku, Killer sudoku Greater than sudoku.There are about 12 books with 50,000 puzzles in total. Each page has one puzzle. The software features include quick restart, pen and pencil mode of entries, Auto save, recording greatest times, book marks and numerous more features. When you leave a page, all your entries are stored, so it appears how you would have written it on a paper or puzzle book, except that there is no wear and tear on the paper or book covers.You can erase the entries in a page with just one click (the restart button). as well book marks supports you to navigate between pages well.Yoogi Games have a syndicate division, where we supply puzzles to numerous leading newspapers across the world. Our high quality puzzles are now made accessible in software format, for your solving pleasure.A must try for sudoku solvers.