Sudoku juego de memoria: pasatiempos de lógica para ejercitar la memoria y practicar matemáticas

Download for free Sudoku, a number puzzle and one of the funniest and most entertaining time killers.
The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9.
You must not repeat the number in the same row, column or grid.
The main features of this game are:
•You can choose the difficulty level that you want.
•If you need help, you can click on the “light bulb” button. It will give you a clue of the next step to follow.
•You can check and correct numbers.
•You can undo de the whole game.
•If you get bored of a Sudoku, you have the possibility of just taking up another one.
•Ranking of better times
•Autosave sudoku continue playing another time