Solve Sudokus like the pros! Got stuck with a difficult puzzle? Smart Sudoku's powerful hints will help you get on track again.

Pick any of the hundreds of built-in puzzles, or quickly copy a Sudoku from your favorite newspaper or magazine using Smart Sudoku's innovative input method.

Enjoy Smart Sudokus streamlined, intuitive user interface. No confusing modes of operation, no popups with myriads of options, no annoying dialogues. Smart Sudoku lets you fully concentrate on the puzzle at hand.


Features:

❖ Powerful hint system based on the most important solving strategies
❖ Very fast manual puzzle entry method (about 40 seconds for a typical puzzle)
❖ Multiple squares may be worked on simultaneously
❖ Show or hide candidates anytime while solving the puzzle
❖ Innovative scoring - based on efficiency of solving instead of time used
❖ Copy/paste puzzles in standard text format
❖ Share partially or fully solved puzzles via e-mail
❖ 399 puzzles built-in
❖ Unlimited undo/redo
❖ Built-in user's manual
❖ Universal app - runs on iPhone, iPod touch, iPad
❖ Landscape mode (iPad only)


Hints
Learn how to eliminate candidates by finding standard patterns. Let Smart Sudoku tell you what pattern to look for next. Still stuck? Smart Sudoku can even show you the squares and numbers involved, if you wish. The affected squares are selected automatically, so eliminating candidates is a snap. Patterns handled by Smart Sudoku include:

• Naked and Hidden Singles, Pairs, Triples, Quads, and Quintuples
• Locked Candidates Type 1 and 2
• X-Wing
• XY-Wing
• XYZ-Wing
• W-Wing
• Skyscraper
• 2-String Kite
• Swordfish
• Jellyfish
• Empty Rectangle
• Unique Rectangle Type 1 and 2


Innovative input method
Copying a Sudoku puzzle from printed matter has never been so easy and hassle-free. It's even fun. Tap on any number of squares, in any order. Then tap on the corresponding number keys, in the same order. Just like you would enter a phone number. Repeat until done. And done you are in typically 40 seconds, often less.


Input checking
Check your input by tapping a button. Smart Sudoku will tell you whether the puzzle has a unique solution or not (usually caused by a typo or missing number).


Efficient solving
Smart Sudoku helps you solve Sudokus in a professional way. Never add candidates, only remove them, even from multiple squares in one step. And, of course, never see candidates you eliminated reappear just because you turned candidates mode off and on. Should you ever get stuck (and no hints are available), have Smart Sudoku solve any square you wish. Or all squares for a given number. Or even the entire puzzle.


Novel scoring method
Unlike other Sudoku apps, Smart Sudoku rates how efficiently you solve a puzzle, not how quickly you do it. Solve every square one after the other and your score will remain at zero. Collect points by solving as many squares as possible for a given number in one step, and watch the blue progress bar grow. To get the maximum of 1000 points you need to solve each number in a single step.


Share puzzles
Send an e-mail of a puzzle at any stage to your friends. If partially or fully solved, they'll also get the original puzzle. And, of course, they'll see your score, even a message about your making use of candidates. Recipients may paste the puzzle into their own copy of Smart Sudoku.


Puzzles from the Internet
Smart Sudoku supports the well-established text format for Sudokus (a string of 81 digits and decimal points), giving you access to thousands of puzzles available on the Internet. Just download the text strings and paste them into Smart Sudoku.