SUDOKU CLASSIC

A traditional field divided into 9 squares of 9 cells each. Classic rules. Three difficulty levels: easy, Medium and hard. A convenient system for substituting numbers in cells and clear numbers.

Fill in the entire field with numbers so that one number occurs only once in a row, column, or small square. Thus, each number from 1 to 9 must occur in all rows, columns, and small squares only once.

In general, we highly recommend Sudoku for developing logic. Despite the fact that this puzzle is often compared to a crossword puzzle, it is still not the same. While crossword puzzles value the player's erudition, Sudoku requires attention and the ability to calculate several options in your mind at once. The last requirement perfectly develops and trains memory.