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Sudoku Susser is a comprehensive Sudoku assistant and master-level solver.

Hints mode shows you what numbers are legal for the remaining squares. The Deducer uses human-style reasoning to solve the puzzles and can take you step-by-step through their solution with detailed explanations of each step. The brute-force Recurse option solves all puzzles. And tons of hilighting modes help you see the patterns in the puzzles.

You can even drag puzzles right off the web-pages of major UK newspapers into the application, then edit, save and print them for offline fun.

What's New

Version 2.5.8:
  • Bug fix in 2.5.6 caused paste of text puzzles to sometimes fail if a log panel had the focus; this has been fixed.
  • Relaxed a restriction in the Consequence Trees hilighters that caused it to sometimes miss contradictions that had a common "trunk" path. While it's arguable that this restriction is reasonable (and I'll argue it), it's pedantic, unhelpful to the user, and sometimes more...


Mac OS X 10.2.8 or later

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Sudoku Susser User Discussion

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Corpsecorps Member IconComment+761

While i'm solving fewer sudokus these days, i'm really glad the application is still kept up to date.

Reply0 replies
Version 2.5.8
Bugsman (I zap germs) Member IconComment+51
Bugsman (I zap germs)

I am an early adopter, and donator. This program is stunning.

Reply0 replies
Version 2.5.8
Corpsecorps Member IconReview+761

Was great, but the new 2.5.x UI and additional features are a huge improvement, nevertheless!

Reply0 replies
Version 2.5.2
Corpsecorps Member IconReview+761

Not only the greatest example of RealBasic programming i've seen, Sudoku Susser is one of the best pieces of software PERIOD!

The range of hints, helps, and learning aids would make it a great sudoku puzzle package alone. The addition of its vast array of keyboard shortcuts, clever UI elements; its puzzle import/export features from websites and files, and most AMAZING, it's OCR and web graphical puzzle IMPORT features make it REALLY exceptional!

Being able to drop a screenshot or scan of a puzzle from almost anywhere onto the window and in minutes (even on my slow 733 MHz G4) have a completely entered and validity checked puzzle ready to play and save is the type of feature thats far beyond the usual scope of this sort of software and makes it absolutely top-notch!

While a cocoa interface would be cool, it's easy to overlook, especially at THIS bargain price!

The word here is: SUPERIOR

Reply0 replies
Version 2.1.3
sjha Member IconReview+123

The developer deserves a medal as well as five stars for creating this superb programme - it is a must-have for all Sudoku enthusiasts

Reply0 replies
Version 2.1.1
Chase Colman Member IconComment+0
Chase Colman

Absolutely the best RealBasic application I have ever seen :)

Thanks for creating this wonderful program, it really does come in handy.

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Version 2.0.8
Anonymous Member IconReview

This is what it claims (and not what many of the detractors seem to think)- a tool to solve the puzzles. It has tools to do the same reductions you probably have been doing yourself.

I like it because most other programs don't let me make all the notes I'd scratch on paper, whereas this one draws them- without the mess of having to erase on them on paper.

It also takes the tedium out of solving. While I enjoy the real headwork of working out the puzzles (if I didn't, I wouldn't do them), I'd rather hit 'M' a few times and save me the bother of doing something that automatic manually.

While I have had a lot of trouble with the program hanging while importing puzzles, the sheer omnivorous nature of its importer is nothing short of jawdropping. It'll OCR a screen grab, for pete's sake!

(The window is also scalable, which is nice for my super hi-res screen here. Too many programs are tiny little specks on this thing.)

If you're looking for a tool (and a manual) to really improve your solving abilities and understanding, look no further, you're home.

Reply0 replies
Version 2.0.6
Abby Member IconComment+0

You should make more books of suduko puzzle books more often Email me at cooollley@hotmail.com From abby

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Version 2.0.3
Anonymous Member IconReview

Seems to be the best of the five Mac Sudoku programs I've found. It is useful even if you consider computer aid in solving the puzzle "cheating" - it has very nice features for fetching puzzles from the web, printing out a nice copy for you to work on, and add you notes, and posting or saving your solutions as text and graphics. It also has an extensive explanation of ten types of common pattern to look for in solving puzzles, and will illustrate them for you, so it is a good tool to teach you how to solve puzzles on your own.

The niftiest feature is that you can drag and drop graphical Suduko diagrams (from the web, generally) and it will actually recognize the numbers and read them in!

When you are on the web, you can just tell the program what difficulty puzzle you want, and it will automatically download as many as you want from a puzzle server.

Highly recommended.

Limitations: it will not create Suduko puzzles on its own. MacSudoku is the only one I found that would.

Reply0 replies
Version 1.1.8
Richard Burt Member IconComment+0
Richard Burt

Great little program but why can't I go into the 'preferences' settings?

Reply1 reply
Version 1.1.5
Robert Woodhead, Inc. (developer)

There are no "preferences" to go into. If you make changes to your settings (in the various menus and pulldowns) they get recorded when you quit and everything will restore to that state when you restart.

No need for a seperate preferences menu!

There are no Ratings for this App yet.
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Current Version (2.x)


Downloads 29,135
Version Downloads 3,570
License Free
Date 29 Mar 2008
Platform OS X / PPC 32 / Intel 32
Price Free
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