Love Sudoku? Can't resist a crossword? Try out Kurosu , the latest Daily Mail puzzle. Highly addictive and utterly engaging, this is the fun alternative to Sudoku! * There are only two rules: 1: Fill in each space with either a nought or a cross so there are no more than two consecutive noughts or crosses in any row or column. Important note: diagonals don't count. 2: Each row and column must contain three noughts and three crosses. * Sounds easy, doesn't it? Think again! This book might look simple, but it's deceptively hard - it's the ultimate test of logic. From easy and medium level, to the highest difficulty rated, Daily Mail Kurosu Volume 1 will offer hours of puzzling fun. Perfect for both single players and groups!.