Mister Sudoku

The best Sudoku game on the iPhone, iPad and Mac OS!

FEATURES

Enjoy our extensive selection of sudoku games, with types / difficulties and sizes to suit everyone ranging from first timers to seasoned experts.
Whether you prefer the traditional 9x9 Sudoku, or something a little bit more exotic like Jigsaw / Killer, we have games to suit your every desire and whim.


Game Types / Difficulties

  • Wide array of game types to choose from
    (Standard / Killer / Jigsaw / X / Hyper / CentreDot / Asterix / Offset)
  • Multiple difficulty levels (up to 9) and sizes.
    Suitable for everyone from beginners to experts
  • All games can be solved using logic techniques. No guessing is required!
  • Each game has only one single solution
  • Huge selection of games (65,000+)

Pencil Marks / 'SMART' Hints

  • Automatic / Manual Pencil Mark modes
  • 'SMART' Hints to guide / teach you
  • Mistake detection / correction

Usability

  • Designed by Sudoku players for Sudoku players!
  • Easy to use interface
  • Optimized for fewer touches / clicks
  • Minimal distractions. No distracting graphics
  • Game Timer keeps track of your playing time
  • Works OFFLINE, so can be used anywhere

GAMES

Mister Sudoku provides a lot of game types in different difficulties so that there is a Sudoku puzzle to solve for anybody!! Check out the different game types!!


Standard

Standard

The original Sudoku game

Jigsaw

Standard

A popular twist on the original with Irregular/Jigsaw shaped groups

Killer

Standard

A highly addictive combination of regular Sudoku logic and arithmetic

Asterix

Asterix

Standard Sudoku, with the addition of an extra Asterix/Star shaped region

Center Dot

Center Dot

Standard Sudoku, with the addition of an extra region formed by the centre of each standard box

Hyper Sudoku

Hyper Sudoku

Standard Sudoku, with four additional regions

Offset

Offset

Standard Sudoku, with nine additional regions

Sudoku X

Center Dot

Standard Sudoku, with two additional diagonal regions

TECHNIQUES

The concept of Sudoku is simple. The (standard) puzzle consists of a 9x9 square grid that is divided into nine 3x3 squares, resulting in nine rows and nine columns, for a total of 81 small squares.
The unsolved Sudoku puzzle supplies only a few numbers in random squares. To solve the puzzle, the remaining squares must be filled in with the numbers 1 through 9, each appearing only once in each row, column and 3x3 square.


Hidden Single

Standard Sudoku, with the addition of an extra region formed by the centre of each standard box

Naked Single

This is another very basic technique for solving Sudoku puzzles. While considering what digits from 1 to 9 are possibly placed in an empty cell, one would first find out what digits have appeared in the common row, column and the 3x3 box with this cell. If eight out of nine digits have been used, then the other one digit left must be in this cell.

Locked Candidates

When examining a 3x3 box, one might find that one digit is locked in a specific row (or column) of that box although the exact position cannot be determined yet. This information leads us to confirm that such digit cannot appear in other positions of the same row (or column).

Naked Pair / Triplet / Quad

In a Sudoku puzzle, if two cells in the same row have exactly the same two digits as possibilities, then such two digits must be in either one of these two cells and cannot be candidates in any other cells of that row. The same reasoning can be used for any columns and any 3x3 boxes. The technique is called naked pair.

This technique can be applied to more than two digits. It is called naked triplet if three digits are involved and naked quad if four. The number of cells must be the same as the number of digits. But each of the digits involved need not be a candidate of all cells. In other words, each cell has a subset of the digits involved as candidates for that cell.

Hidden Pair / Triplet / Quad

In a Sudoku puzzle, if two digits are candidates for the same two cells in the same row and not for any other cells of that row, then such two digits must be in either one of these two cells and other candidates in those two cells can be eliminated. The same reasoning can be used for any columns and any 3x3 boxes. The technique is called hidden pair.

This technique can be applied to more than two digits. It is called hidden triplet if three digits are involved and hidden quad if four. The number of cells must be the same as the number of digits. But each of the digits involved need not be a candidate of all cells.

REVIEWS

"At last I have found an app that gives me all of the sudoku options that I enjoy. The scoring system helps to make the games addictive."

johnw49
United Kingdom


"Great killer sudoku. Same for all the sudoku varieties. I really enjoy this app."

equuphile
United States


"Très bonne conception jeu très complet formes niveaux etc... Je recommande"

ener47
France


"Sehr bedienerfreundlich, stabil, vielfältige Auswahlmöglichkeiten vorhanden. Ein Muss für jeden Sudoku-Fan!"

huanamama
Switzerland


"Muy buena, interesante, retadora"

Cag cga
Mexico


"Εξαιρετικός βαθμός δυσκολίας σε killer, δυνατότητα pencil και σβήσιμο λαθών. Βελτίωση στο να βρίσκουν το άθροισμα με ένα πάτημα, και στις πιθανές επιλογές."

Dprtr
Greece


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DOWNLOAD

iPhone

iOS App Screenshots
Download on the App Store

Mac

Mac App Screenshots
Download on the Mac App Store

CONTACT

support@ludoware.com

Mister Sudoku

PRIVACY

Collecting information

What kinds of information do we collect?

  • We only collect data for the purposes of maintaining global scoreboards for our puzzle games. In addition to details of each game you complete (e.g. time taken, mistakes made, hints used) we ask you to provide a Name and Location (Country) so that we can personalise our scoreboard.

How do we use this information?

  • Any name and/or location information that you provide, either manually or via Facebook Connect is used to maintain global scoreboards for our puzzle games. You are free to set the display 'Name' and/or 'Country' to anything you desire. Many users choose a non-identifying 'Name' for display on the scoreboards.

How is this information shared?

  • We don't share your information with any 3rd parties. Any information you provide is only used to maintain global scoreboards for our puzzle games. The display 'Name' and 'Country' along with aggregate user statistics (e.g. total points, time taken to complete game) are displayed to other users via the scoreboards.

How can I manage or delete information about me?

  • Setting the display 'Name' to something that is not personally identifying is enough to remove traces of your name from our scoreboards. If you also desire your game history to be permanently deleted then please email us at support@ludoware.com

Our principles

We do our utmost to protect user privacy through the appropriate use of security technology. This means:

  • We ensure that we have appropriate physical and technological security measures to protect your information
  • We ensure that when we outsource any processes, the service provider has appropriate security measures
  • We will collect and use individual user details only where we have legitimate business reasons and are legally entitled to do so
  • We will be transparent in our dealings with you as to what information about you we will collect and how we will use your information
  • We will use personal data only for the purpose(s) for which they were originally collected and we will ensure personal data are securely disposed of

In the event that you have any queries in respect of the Privacy Policy, please email support@ludoware.com with full information (date, personal user data if applicable, country, city, details, contact number, and any other information). Please allow up to 5 working days for a response.