## 50 Crossnumber Puzzles, Creating PuzzlesThis book is bursting with 50 fun and addictive crossnumber puzzles! Crossnumbers are cousins of kakuro puzzles, but featuring even more brain-busting twists. Clues might be arithmetical, but also can be logic-based, algebraic, or refer to other properties of numbers, like "a square number", "a palindrome", "a cube", or "the square of a prime number". Some of the puzzles within are hybrids of crossnumber puzzles and sudoku, for even more varied solving pleasure. Features of this book include: - 50 exciting puzzles, sorted by difficulty.
- A solution guide giving hints for each puzzle.
- A full solution for each puzzle.
- Handy solution aids such as charts of prime, square, and cube numbers.
- Step-by-step instructions on creating your own puzzles, so you can expand your fun and challenge your friends!
Click here to order the book at Amazon. 118 pages, $8.95 ISBN/EAN13: 1434829758 / 9781434829757
Or download it from Lulu for $10.99.
Preview (at Lulu) |

# Vol. 1: 30 Crossnumber Puzzles

This is a subset of the book that is available at Amazon (see above)!

72 pages packed with crossnumber puzzles, tips and tricks for solving them, and a useful appendix containing number lists (primes, squares, etc.) which help you concentrate on the fun part of solving puzzles. Here is some sample content.

Click here to order the paperback version at Lulu.com. 72 pages, $9.98

Or download it for just $4.99.

# Vol. 2: Hybrid Puzzles, create your own puzzles

This is a subset of the book that is available at Amazon (see above)!

This book contains new puzzles, for example hybrids of Sudokus and crossnumber puzzles (Sudokus without any numbers given as starting points, but instead crossnumber-like clues; see the preview for more details).

An important part of this book is a step-by-step explanation of how to create puzzles such as this one.

Click here to order the paperback version at Lulu.com. 58 pages, $9.99

Or download it for just $7.49.