Sudoku interlude

A co-worker passed me a page of Sudoku puzzles, which I industriously took home. Seriously, I can't think of anything more depressing than doing Sudoku at work, since it feels more like work than work does.

Unfortunately, at least two of the puzzles on the page are misprinted as to be unsolvable.

Lee and I have been working on the puzzles as a wind-down activity. This is a mixed blessing: on one hand, we need all our brainpower for Sudoku, and is a nice break from the day's events. On the other hand, it encourages staring at a piece of paper and cursing.