SANS DIEU RIEN  I am a bit reluctant to purchase MacKakuro as the publisher offers a $7 upgrade for each whole version (e.g. if you purchase 2.x it will be an extra $7 for 3.x).

I guess independent game companies need more money. If you really believe in this product then it won't be an issue.  
(Version 3.0.3)

MARSHAPW  Just when I thought Sudoku couldn't make me any crazier, along comes the 16 square, numbers AND letters!! I love it! And now I just have to find a way to accomplish my other work while trying to accomplish this more intense Sudoku puzzle!!!

Thanks!!!

I needed that!  
(Version 3.0)

ANONYMOUS  drosboro (Rosborough Technology Co.): The original build of version 2.2 contained code that logged thousands of lines to the console.log. I have replaced the files with a new build that doesn't do this. If you'd like to keep your console logs uncluttered, you can re-download the new build (still called version 2.2).

I apologize for the inconvenience!

Happy solving,

Dave Rosborough  
(Version 2.2)

BEATRICE WARD  This is for all users who read my comments re entering my own puzzles into MacSudoku 2.

I was the problem, not the program.

Because hitting the done button in MacSudoku 1.3 assumed you were completely finished, I was saving the file in which I had entered the numbers rather than clicking the "done" button to indicate I had entered the original numbers.

Turns out you have to click the "done" button once the original numbers are entered in order to move to a working file In Mac Sudoku 2.

When you do this, everything works great.

Many thanks to Dave for being a very responsive and nonjudgmental developer. He has created a great program for people who are Sudoku fans and Mac users. And also wants you to be able to use it.   
(Version 2.0)

BEATRICE WARD  I downloaded and registered 2.0 this morning. It works fine when I am doing one of the puzzles the program provides.

BUT, when I try to enter a puzzle myself (e.g. the one in the Los Angeles Times this morning), the only page that will come up is the one with DONE in the lower right hand corner.

This page will not save any numbers that I enter, it will not show errors or soltions.

In other words, I cannot use version 2.0 for puzzles I enter. What am I doing wrong?  
(Version 2.0)

EGGMAN  This app is alright. It generates random puzzles and offers square border pencil-marking, which makes it as close to a PnP Sudoku game as any other app on the market. My biggest beef with this program, however, is the fact that the space between the numbers in the grid is such that when I finish using this program and go back to normal work, all the text in my other programs looks scrunched together by comparison. This was enough of an annoyance for me to switch to Sudoku Susser.  
(Version 2.0)

DAVE ROSBOROUGH  I should point out (re the last post) that Sudoku Susser, while it IS a great program, doesn't generate it's own puzzles. That's the point of MacSudoku: it makes it's own puzzles, and it's got a simple, clean interface that's easy to use.  
(Version 1.3.2)

ANONYMOUS  http://www.madoverlord.com/projects/sudoku.t

you sohudl try that one, it is a free sudoku program, seems alot better and has alot harder puzzles..  
(Version 1.3.2)

PAOLOP  Do not take account of multiple solutions. In any case fun to play  
(Version 1.3)

ANONYMOUS  The application states that the trial period ended after the second start, one day after the first start. Also, the generated puzzles are too easy—there should be a setting for generating puzzles of different difficulty. Otherwise, quite nice.  
(Version 1.2)