Krazydad Tough Kakuro Volume 3: 99 Enormously Challenging Puzzles in Bloomington, MN

From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 99 stupendously challenging 14x19 Kakuro puzzles for you to solve. Printed on a substance called paper, which can be used with a physical stylus called a pencil that leaves actual graphite marks and can be erased. Includes a pithy introduction and a remarkably clear and patient tutorial, just in case you need it.