To increase the visibility of the game's numbers:
- Tap the bottom of the Sudoku screen to bring up the bottom menu bar
- Select the Options tab
- Scroll down and toggle on Large Keys, which will increase the size of the keypad
If you have difficulty selecting the number from the number keypad, try Floating Keys, which enables one-gesture entry of numbers with a floating keypad next to a tapped square. You can toggle on Floating Keys in the Options tab.
Changing the visual elements of the game can also help with visibility:
- Tap the bottom of the Sudoku screen to bring up the bottom menu bar
- Select the Themes tab
- Make adjustments to the Grid Style, Backdrop, Font Size and/or Key Color
For tablet players, you can increase the size of the gameplay space by playing in Landscape mode by rotating your device on its side.
If your screen does not automatically adjust to being flipped on its side, check to make sure that the device's orientation lock is disabled.
For better readability in the cells on the Sudoku board:
- Tap the bottom of the Sudoku screen to bring up the menu bar
- Tap the Options tab
- Scroll down and toggle on Concrete Cells
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