Sudoku-321

Sudoku – Sudoku 321 Puzzles Game is the best classic sudoku game! And the best way to learn and improve your skills in this classic puzzle game. Sudoku 321 is a free number puzzle game for phones, fill a 4x4, 6x6，9x9 grid with digits so that each column and each row, the grid contains all of the digits from 1 to 9, the game contains sudoku puzzles of various difficulty levels. It is aimed with 8 difficulty levels easy to master. Sudoku 321 will help you to learn and improve your skills in this classic puzzle game, with our sudoku app you won’t be looking for a paper puzzle ever again!. Features: -- Classic mode, with different difficulty Sudoku models, the level of difficulty is gradual. -- Challenge mode, update the question bank every hour. -- Online mode, you can play against other players at the same time. -- Online ranking, ranking records for each Sudoku mode -- Recording function, recording the process of filling in Sudoku, can be withdrawn, restored, and verified at any time. helper function: - Note , toggle node mode: - Hint , reveal a correct number: - Undo , cancel the last step. - Redo , recover a step. - Clear , delete a delete the contents of the space. We hope you will enjoy our sudoku, get hands on now, enjoy the stunning designs and test your brain for free, please contact us and leave your feed back if you have any questions.