About Sudoku

Sudoku, which means single number in Japanese, is a popular 9x9 number logic game. The objective is to arrange 9 numbers such that each number appears once in each row, column, and 3x3 box. The puzzle begins with a set of "hints", and you are to fill in the rest of the board.

Controls

Click on a number cell to make it the active cell. Select your solution for that cell by clicking one of the number buttons 1-9 (or use the keyboard). If you are in training mode then the cell will turn red if your solution is incorrect. You may also long-press a cell and a number pad will appear for a quicker means to enter your answer or notes.

Undo your last entry.

Erase a cell, resetting it to empty.

Enter notes mode. When you click the notes button, any cell you activate goes to notes mode where you can enter the possible solutions for that cell.

Request a hint. You can ask for a hint for the current active cell.

Options

Training mode: when this is active the game will indicate when you make an error. This also enables the hint button. If you utilize training mode then your game is not eligible for the leader board.

Level of difficulty: easy, intermediate, expert.

Game details

The time runs from the initial presentation of the puzzle until its completion. The timer will pause anytime the app goes to the background. Your final score is based on the time it takes to complete the puzzle and the level of difficulty.

Achievements

There are 11 achievements awarding you for particularly amazing game play, and a 12th achievement for earning all of them. You have to play the game to figure out what they are. See if you can earn them all.

Leader Board

Scores are based on the puzzle difficulty and the time it took to complete the board.

Scores may only be submitted to the leader board if you are logged in, you do not have training mode on, and you completed the game with no errors and no hints.

Credits

This game was built by Varyn. It is based on the classic newspaper puzzle game Number Place.