bAbout BookbbrThis book introduces you to the amazing world of Straights 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 b200b exciting puzzles, both for beginners and for professionals. pbHOW TO PLAYbbrIt is a b9x9b grid, partially divided by black cells into compartments. pliEach compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order for example 2-1-3-4.brliThe aim is to fill all white cells with the numbers from 1 to 9, same rule and goal as Sudoku.brliNo single number can repeat in any row or column.brliAdditional clues are set in some of the black cells - these numbers remove that digit as an option in the row and column. Such digits do not form part of any straight. pAs Straights belongs to the same class of puzzles as Sudoku the puzzle can demonstrate a wide spectrum of relative difficulty. The grade is determined by a combination