logo
logo
logo
2019-Aug-17: Volumes 19 and 20 of Killer Sudoku are out. Enjoy!

Challenging 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 challenging puzzles? Just ask -- I'll make more!