Sudoku Monochrome

Sudoku Monochrome is a black and white Sudoku game with 50 new puzzles bi-weekly updates.

The Game :
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Fill the 9 by 9 grid with digits so that each column, each row, and each of the 3 by 3 sub-cells contains all of the digits from 1 to 9 with no redundancy.

The Controls:
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- Select cell -> Press button -> Number entered!
- Select cell -> Press "Del" -> Cell erased!
- When you are done press "Check" to submit your solution and record your time.
- Select "Notes" to enter notes in each cell.
- Press long on button to highlight same numbers in the whole board.
- Through options menu you can "Pause", "Reset" all data on current board, "Help" to show instructions and "Exit" the game.
- "Select Puzzle" to start a new puzzle or enhance your time on a solved one.
- Disable/Enable Hint is an assistance to help identifying errors while playing.