Sudoku

A Sudoku puzzle is a logic and number-placement puzzle. It is a grid that consists of 9 rows, columns and subgrids (blocks) that all need to have the number 1 to 9 filled exactly once. It is solved step by step by ruling out possible values for each cell. Sudoku puzzles do not require guessing to solve them. Features of this app: ★ Play sudoku puzzles of different levels ; ★ Play 6x6 sudoku : 6x6 sudoku is a smaller variant of regular sudoku; ★ Take notes : notes give you more insight in the possible values for a cell, so it becomes easier to solver the harder sudoku puzzles; ★ Use dark and light theme : play your sudoku puzzles in bright and dimmed environments; ★ Designed for phones and tablets : play sudoku puzzles on your phone while you are on the go, or on your tablet when you are at home; ★ Validate your entered values (optional) : you can validate your entered values automatically, manually or not at all; ★ Highlighting of related cells (optional) : give cells in the same row, column or block a different color; ★ Timer (optional) : show the time spent on the current sudoku puzzle.