Toan Hoc Vui app for iPhone and iPad

ToanHocVui is a logic game and how to play the complete number from 1 to 9 into the blank cells so that each vertical column, each row, each partition small (3x3 box) with all the numbers from 1 to 9 without repeat.
Table puzzle squares, each small square 9 pm, where the 9 columns, 9 rows and is divided into 9 large 3x3 box. A few small boxes are numbered, its the only clues to find your answers. Depending on the level of more or less of the clues, the puzzles are graded easy, moderate, hard or very hard. In addition, the table as 16x16, 25x25 or even 100x100.