CORPSECORPS  While i'm solving fewer sudokus these days, i'm really glad the application is still kept up to date.  
(Version 2.5.8)

BUGSMAN (I ZAP GERMS)  I am an early adopter, and donator. This program is stunning.  
(Version 2.5.8)

CORPSECORPS  Was great, but the new 2.5.x UI and additional features are a huge improvement, nevertheless!  
(Version 2.5.2)

CORPSECORPS  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  
(Version 2.1.3)

SJHA  The developer deserves a medal as well as five stars for creating this superb programme - it is a must-have for all Sudoku enthusiasts  
(Version 2.1.1)

CHASE COLMAN  Absolutely the best RealBasic application I have ever seen :)

Thanks for creating this wonderful program, it really does come in handy.  
(Version 2.0.8)

ANONYMOUS  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.  
(Version 2.0.6)

ABBY  You should make more books of suduko puzzle books more often Email me at cooollley@hotmail.com From abby  
(Version 2.0.3)

RAFOWELL  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.   
(Version 1.1.8)

RICHARD BURT  Great little program but why can't I go into the 'preferences' settings?  
(Version 1.1.5)