Sudoku

This is the best free sudoku game (数独). It is very addictive sudoku puzzles.Sudoku (also called Number Place) is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 sub-grids that compose the grid contains all of the digits from 1 to 9.This is a simply easy-to-use sudoku game, with fresh and cool interface, very acceptable difficult levels, suitable for sudoku beginner to sudoku expert. sudoku game features:- There are 4 difficulty levels to play:+ Easy level: for beginners who are pre-intermediate in sudoku.+ Medium level: For those who have familiarly with. You can play medium level only when your score is bigger than 1 points.+ Hard level: It needs more time to think and play. You can play hard level only when your score is bigger than 10 points.+ Master level: That is the hardest level for those who are sudoku master. You can play master level only when your score is bigger than 30 points.- Comfortable and easy in use- Totally free & fun- Automatic error checking option- Show digit counts option- You can check your times and improve them- You can share to your friends via Google+, twitter and facebookBecome a sudoku master and You won’t be looking for a paper puzzle ever again!Enjoy!