If you’ve never played Sudoku before, I recommend checking out Wikipedia’s page on the game these reviews assume you know the basics. However, I’ve noted in the summaries below if an app uses symmetrical puzzles. I tend to agree, but I didn’t hold a lack symmetry against the candidates. Although not technically a requirement, many purists don’t consider non-symmetrical puzzles to be “true” Sudoku. Unfortunately, none of the better Sudoku games available for the iPhone and iPod touch exclusively use symmetrical puzzles-those in which the pre-filled boxes (called givens) in opposing regions mirror each other. 1 (left), Big Bang Sudoku (middle), and EA’s Sudoku (right) Includes puzzles for multiple skill levels. (For example, a couple Sudoku apps that didn’t make the cut satisfied most criteria, but their methods for making notations obscured other parts of the puzzle.) Offers good usability: easy-to-use input methods, clear controls, and readable graphics. (These markings are often called notations.) Provides a way to note (or “pencil in”) the possible values for each square as you solve a puzzle. Includes puzzles with only a single solution. (Some Sudoku variants break the standard 9-by-9 grid into non-square geometric areas, or use colors or images instead of numbers.) Uses a standard 9-by-9-cell grid of numbers with nine square (3-by-3-cell) regions. (It was a tough job, but somebody had to do it.)Įach of the three versions that made it through my screening process, and are covered here, satisfy the following requirements: But Macworld is here to help: I tested every iPhone Sudoku app and picked out those worthy of your iPhone’s screen. If you’re a fan of Sudoku, which do you buy? Unfortunately, the current state of the App Store doesn’t allow for demo versions of software, leaving you to take a wild guess based on a short description and a few screenshots. But if you’ve been in a cave the past few years and need evidence, look no further than theġ8 (and counting) versions of Sudoku apps available in the iTunes App Store, ranging in price from 99 cents to $10. Chances are, you’re fully aware that the number-placement logic game Sudoku is massively popular.
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