You need not use SET (Set Equivalence Theory) to solve this one, but it's more fun to do so.

Temperatures rise in much the same way wet paint does not. This puzzle is as easy as watching paint dry.

Someone might have been born in 1972. Maybe. Or there could be some other reason that’s a good year. It is, though.

I hope you’re not tired of Region Sum Lines yet. I hope the blue lines aren’t driving you… around the bend!

In another puzzle, blue lines might suggest water, or a serene sky, but I can’t help but think of them here as shards of glass. Be careful!

Perhaps someone’s a little tipsy, but they’re watching over you as you solve this puzzle.

Those are some pretty small numbers in those cages. Almost too small. Almost. I’ve been doing “Sudoku-X” puzzles almost as long as I’ve been doing Sudoku puzzles, but around these parts, we call those “diagonals.” If you’re feeling a bit of déjà vu, see also: High Killer X.

Those are some pretty big numbers in those cages. Almost too big. Almost. I’ve been doing “Sudoku-X” puzzles almost as long as I’ve been doing Sudoku puzzles, but around these parts, we call those “diagonals.” If you’re feeling a bit of déjà vu, see also: Low Killer X.

White Kropki dots are simple, and there are only a couple of them. XV clues are more interesting, and there are a lot of those. Still not enough to make it clear how to solve the puzzle, but that’s because of the global constraint. This puzzle demonstrates an overt bias against knights: no knight’s moves allowed!

Arrows point this way and that, and you’re seeing double more often than not, but this shouldn’t pose a problem for you. You’re savvy. You know which way the arrow’s pointing.