Sudoku Ultimate Offline puzzle

Classic Offline Sudoku is a number-placement puzzle game based on logic and combinations. The goal is to fill a 9×9 grid with numbers so that each column, row, and 3×3 sub-grid contains the digits 1 to 9.
This classic sudoku puzzle is completely free with no ads.
This free sudoku game features innovative elements such as game time and history.
The game offers two game styles: Classic and Unlimited. The Classic mode includes 1000 unique puzzles across four difficulty levels. The Unlimited game style features three modes:
1. a 6x6 field with 2x3 sub-sections
2. a 9x9 field with 3x3 sub-sections
3. a 12x12 field with 3x4 sub-sections

Each game mode has four difficulty levels, determined by the solving strategies required to complete the game, not the number of set values.
This game is designed under the GNU General Public License.
Website:http://www.techmasterplus.com