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2019-Nov-4: I've just put out Volumes 17 thru 20 of the Sudoku Puzzles. Happy Puzzling!

Super-Tough 10x10 Ripple Effect Puzzles by KrazyDad, Volume 2

Each booklet contains a collection of 12 different puzzles, with the answers in the back.

The books are ordered by difficulty. The higher the book number, the harder the puzzles. If you are new to Ripple Effect, I suggest you start with Book 1.

These booklets are in PDF format and should print from most web browswers. If you like these puzzles, also check out my other puzzles.