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Sudoku Unlimited for iPhone

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Quick Specs

  • Version:
  • Total Downloads:
  • Date Added:
    Feb. 02, 2010
  • Price:
    Purchase; iTunes account required; $2.99 to buy
  • File Size:
  • Downloads Last Week:
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3 stars

"Badly Designed User Interfaceâ??Look Elsewhere For..."

August 11, 2008  |  By StefanStevanovitch

2008-08-11 20:30:27  |  By StefanStevanovitch

 |  Version: Sudoku Unlimited 1.02


...A Sudoku Game.
This review was originally posted on
Sudoku Unlimited comes with four very nice skins that include very readable graphics and fonts. When editing numbers and notations the selected row and column is highlighted making it easy to check for notations and numbers that may need editing during game play.

Number and notation editing is done by a pop-up that uses intelligent logic to position the pop-up, it always pops-up clear of the row and column that you are editing, however, in many cases, the pop-up obscures part of the group you are editing. The pop-up is draggable, so you can drag it around the game area to allow access to all parts of the game grid without closing and reopening the pop-up. The pop-up allows you to edit multiple notations in multiple cells without closing and reopening the pop-up and you can choose between two different pop-up sizes allowing you to minimize the amount of screen area that is obscured by the pop-up. You can turn on pop-up transparency and adjust the level of transparency of the pop-up, but I found that particular option made it more difficult to see the numbers and notations on the pop-up.

The more I play the Sudoku Unlimited, the more annoying and distracting the constantly moving pop-up becomes. Every time you try to edit a notation in a new cell the pop-up disappears and then reappears in a new location and you play an endless game of chase the pop-up. The need to continuously switch between notation mode and number mode is also tremendously annoying when a simple, single tap for a notation number and a double tap for a number is the obvious logical approach. Iâ??m not a fan of pop-ups in Sudoku games and donâ??t see the need for them, there is plenty of screen real estate available on the rectangular iPhone screen for a number pad that doesnâ??t obscure the game grid. Sudoku Unlimited squanders that spare real estate with empty margins above and below the game grid.

Sudoku Unlimited has a very nice implementation of auto-fill to automatically fill in annotations at the beginning of a game, you can then elect to leave auto-fill on to automatically remove notations during game play, or you can turn it off and manually remove notationsâ?? a nice compromise for Sudoku enthusiasts and purists. Once again catering for the purist, there is an option to turn on, or turn off, error display. There is also a very useful option to turn off auto locking from within the game and if you get stuck during a game you can use the hint option to make the next step in the game for you.

The game generator creates games at five levels of difficulty. Games at the hardest level are very challenging and a quick check indicated that all games are valid and have only one solution. Disappointingly for Sudoku enthusiasts and purists, games are not symmetrical.

Three things are missing from Sudoku Unlimited. As previously mentioned the game generator does not create symmetrical games. The second missing feature is an option to enter custom games from sources like newspapers, puzzle books and websites. The third missing feature is unlimited undo and redo so you can quickly and easily fix mistakes or backtrack if a deduction does not work out.

At the time of writing this review, Sudoku Unlimited version 1.02 still has a bug that prevents it from recognizing that a game has been completed. You need to close and reopen the game, then search for cells that have been suddenly emptied; once you have reentered all the cleared cells the game will show as completed.

With itâ??s terrible user interface, the current bug and the asymmetrical games I canâ??t recommend Sudoku Unlimited and suggest you look elsewhere for a Sudoku game.

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Full Specifications

What's new in version 1.07
Fixed an issue with preventing the screen from locking.
Publisher Phase2 Media
Publisher web site
Release Date November 28, 2009
Date Added February 02, 2010
Version 1.07
Category Games
Subcategory Other Games
Operating Systems
Operating Systems iOS
Additional Requirements Compatible with iPhone and iPod touch., Requires iPhone OS 2.2.1 or later., iTunes account required
Download Information
File Size 2.38MB
File Name External File
Total Downloads 136
Downloads Last Week 0
License Model Purchase
Limitations Not available
Price $2.99

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