The best part of my New York Times subscription is access to not just the last 30 years of its daily crosswords (about 10,000 puzzles in all), but to a well-designed interface for solving them online. I have started from the start and am playing my way forward.
The fun extra layer of solving puzzles from 1994 is to remember not just what the clue might refer to, but also how a clue that means one thing today could have meant something different then (five-letter word ending in “A” for “North American trade agreement” was “NAFTA” then, not “USMCA”).
The puzzle interface gives the solver options that the paper puzzle cannot. Using Autocheck (which lets me know if a character I enter into a square is right or wrong) has let me focus on the part of doing a crossword puzzle I enjoy while cutting way down on the part I don’t. (In exchange for using Autocheck, I abstain from consulting dictionaries, encyclopedias, or any other references.)
My one complaint: Some puzzles use a rebus feature, in which a single square can hold multiple characters. I wish the interface had an option to highlight those squares when a puzzle has them. I like to know what I’m up against.