Letterboxes (Part 1)

New York Times crossword puzzle Sept. 22 / Constructed by Mike Selinker

UPDATE: The crossword contest is over (and, alas, I did not win). Here are my thoughts on the solution to Letterboxes.

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EARLIER: Today’s crossword is a puzzle-within-a-puzzle, and it’s also a contest. As such, I’m going to hold off on posting so as not to spoil the fun. You can read a little more about the grid here.

I’ll blog on Tuesday after 6 p.m., which is the deadline for contest entries.

If you’d like some hints, feel free to e-mail me at katmath (at) gmail (dot) com.

Need some solving tips and tricks? I’ve posted some here. Feel free to ask questions or leave comments below. You can also visit my Facebook page, or tweet me @crosswordkathy.