Hard to Master: Numbricks Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 9) (Series #9) (Paperback)

About Book
This book introduces you to the amazing world of Numbricks puzzles.
It will help you understand the rules of this puzzle. This book is perfect for players of all ages.
You will find 200 exciting puzzles, for professionals. At the end of the book you are being waited by solutions for self-examination.

HOW TO PLAY
It is played on a rectangular grid of squares. Some of the cells have numbers in them. The object is to fill in the missing numbers, in sequential order, going horizontally and vertically only. Diagonal paths are not allowed.
Despite featuring numbers, math skills are not necessary.
At the beginning, the game displays the location of the highest and smallest numbers, as well as some other numbers that serve as clues to solve the puzzle.
To solve it, you complete a number matrix using logic.
Numbricks puzzles are similar to Hidato. The most important difference is that it is only possible to move 1 node left, right, up, or down.