Playing sudoku daily can boost your concentration, ease depression and even prevent Alzheimer's disease. Can you imagine that there are 5,472,730,538 possible sudoku puzzles? It is designed to work equally well on all kinds of devices - phones, tablets and PCs. The Times in London helped spread Sudoku to Western culture by publishing its first daily sudoku in 2004. Sudoku HD is our version of the classic number-placement puzzle game. Therefore, in the sudoku game, we have to fill in numbers without repetition. What is Sudoku? 'Su' in Japanese means numbers while 'Doku' means single. The goal - to fill in the empty cells with numbers from 1 to 9 so that each column, row and small square each digit will occur only once. Sudoku is a square of 9x9, divided into smaller squares of 3x3. The best part of the game: This free online sudoku game delivers a new puzzle each and every day! Interesting Facts about Sudoku Try the new version of the popular Japanese puzzle. The goal of the game is to fill every square on the grid with a number from 1-9, where the numbers can only appear once in every row, column and 3x3 box. You can place notes, find sudoku tips, manage the timer and save the sudoku game by clicking the menu bar in the top-right corner.

Learn solving techniques with our smart solver. Worried about damaging your sudoku puzzle with eraser marks? When you play our free online sudoku game, there's no need! You can choose easy sudoku, medium sudoku, or even sudoku for experts if you are confident. Play free online Sudoku puzzles (printable) with pencil mark and coloring options.

Sudoku+ HD free