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Merry Christmas! This past year I've added RIPPLE EFFECT, STAR BATTLE, BINOX and INSANE KAKURO puzzles to the site, and I look forward to adding more from my long backlog of new puzzle requests in 2019, during my scant free time. To each of you who has sent an annual donation this month, a HUGE THANK YOU for supporting my work!

Twin Samurai Sudoku, Volume 8

Each booklet contains a collection of eight different puzzles, 1-per-page, with 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. All these puzzles have a single unique solution.

These puzzles are in PDF format and can be printed in your web browser or with a standalone PDF reader. Problems printing puzzles? Try these work-arounds.

Want to save some trees? Try the online version of these puzzles.

Out of twin puzzles? Here's 800 more!.