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2020-August-31: HAUNTED is our new spooky-cute puzzle, in which ghosts, vampires and zombies can be spied inside the corridors of a house of mirrors. A fun autumn activity for kids, teachers, and home-schoolers, you can learn more about it here!

Intermediate Hexadecimal Sudoku (0-F), 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!