5If Notes mode is not active (the Notes button is gray), tap Notes. The Notes button and numbers turn blue.
6Tap the numbers you want to enter as notes. The numbers are toggles. If you tap a number and change your mind, tap the number again.
7Tap the Back button to continue playing.
Entering Hints
Hints are additional givens that you might want to enter if you cannot figure out values for some of the squares.
To enter a hint in a square:
1Study the Sudoku grid on the reading screen and decide to enter a hint in a specific square.
2Scroll the Sudoku board on the touchscreen so that the square is visible.
3Tap the square.
4Tap Hint. A given appears in the square. If values in other squares conflict with the new given, they are displayed in red.
NOOK User Guide | Games | 154 |