If you liked Sudoku, you will love Kakuro - the newer, sneakier, twistier puzzle that's already brought players in Japan and the US to their wits' end. The grid is like Sudoku, but the challenge is to make sure the numbers in every row and column add up to the numbers shown beside or above them. It's totally addictive! Daily mail kakuro has 150 all new puzzles, ranging from easy to difficult, and a detailed introduction packed with strategy hints including: what to look for in the grid to get started - there are clues in every number ; how to combine sums to unlock more difficult puzzles ; a comprehensive list of kakuro blocks. Once you've tried one, you won't rest until you've cracked them all.