Sudoku HD - by Boathouse Games app for iPhone and iPad

Sudoku HD is for everyone from beginner to expert.
Super Hint System to help learn to play.

The advanced help system allows you to highlight rows , columns and block for the selected square.
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Auto Note feature, save you time entering the notes for each square. The advanced note feature also keeps the notes updated when numbers are entered.
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Unlimited FREE Puzzles for you to play always.
Save and resume many games at the same time.
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Features:
. Daily Game
. A large board which is very easy to use and see.
. Pencil mode to add notes.
. Check for mistakes.
. Superb hint system.
. Auto Note Feature.

Enough for any Sudoku fan.