These not-so-easy puzzles from The Wall Street Journal are perfect for settling in for a weekend solving session or treating yourself to a mental workout anytime.

With tricky themes concocted by top crossword constructors, these 72 not-so-easy, not-too-hard Wednesday and Thursday puzzles offer satisfying solving, thanks to the expert editing of the legendary Mike Shenk. Originally published in The Wall Street Journal, all the puzzles have been newly vetted to make sure every clue is fully up-to-date.