Clearly the cat has to go.

It first does an elimination round (which I've done) that removes any values that can't be in there (like in the first row, removing 3, 2, and 6 from any of the candidates there). The next step is finding units with only one choice and picking that.

The screenshot actually shows a bug I had that wasn't doing this correctly… ><

Slowly making progress on the sudoku solver (the first project in the class)…

sudoku_01

Oooh, I completely misread your original post, and thought it had something to do with advertising. You meant actual land :) (In my defense, in over my head in class right now…)

https://gumroad.com/l/noBSLA and https://gumroad.com/l/noBSmath have been very helpful for me to get the math background.

Yes… get out while you can!

It was only 106º here earlier (west Oakland).

Cute!