This book introduces you to the amazing world of Hidoku puzzles. It will help you understand the rules of this puzzle. This book is perfect for players of all skill levels and ages. You will find exciting puzzles, both for beginners and for professionals. At the end of the book you are waiting for solutions for self-examination (from Hebrew: " ") is a logical puzzle. The goal of Hidoku is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. In every Hidoku puzzle the smallest and the highest number are presented in the grid. There are more numbers on the board to help to direct the player how to start the solution and to ensure that Hidoku has only a single solution. To solve it, you complete a number matrix using logic. Hidoku puzzles are similar to Numbrix. The most important difference is that diagonal paths are allowed.