Kakuro Puzzle Book

60 Cross Sum Puzzles from Easy to Hard, with Solutions

Cover of Kakuro Puzzle Book

Coming soon on Amazon. Submitted to Amazon KDP for review (2026-09-27); usually takes up to 72 hours.

A printable PDF version is planned but not published yet.

Kakuro, also called cross sums, is a crossword with digits instead of letters: every row and column must add up to the number shown, and each puzzle has exactly one solution.

60 puzzles, one per page, moving from smaller grids to larger ones - 4 easy, 40 medium and 16 hard. Full solutions are printed at the back, and every solution has been checked by computer before printing.

The puzzles and solutions are generated by a rule-based program, not by AI - each one is verified to have exactly one valid solution before it goes in the book.

Inside the book

An easy puzzle near the start of the book.
An easy puzzle near the start of the book.
One of the harder puzzles later in the book.
One of the harder puzzles later in the book.
Every solution is printed at the back.
Every solution is printed at the back.