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2020-Mar-27: I've been working on a new set of Skyscraper puzzles, and you can download a preview sampler here (just in case you're bored, stuck inside for some reason, and like a really challenging puzzle). Enjoy!

Intermediate Hexadecimal Sudoku (1-16), Volume 7

Each booklet contains a collection of eight different puzzles, 1-per-page, with a page of hints and a page of answers in the back. The booklets are ordered by ascending difficulty -- the puzzles in book 100 are much harder than the puzzles in book 1.

These puzzles are in PDF format and can be printed from your browser or the desktop. Problems printing puzzles? Try these work-arounds.

Out of intermediate puzzles? Just ask -- I'll make more!