Connecting these puzzle cells involves using your brain cells to the max! Masyu features a series of black and white circles arranged in a grid; the object is to join them in a single, unbroken loop with a line that passes through every circle. Of course, there's a twist: there are special rules about how the line may make 90-degree turns when it passes through a black or a white circle. It's like a maze with no walls and there's only one solution to each puzzle - puzzlers will be keen to try to find them!

Masyu and Sudoku 2009, Sterling, New York

ISBN-13: 9781402758744