Packed with 128 logic and number puzzles, including over 50 different types of puzzle, Sudoku Xtra 4 offers greater variety than any other puzzle publication. Puzzle types include Sudoku and many variants, through to less common Japanese puzzles such as Nurikabe, Slitherlink, Masyu and Yajilin. The Sudoku selection includes the brand new Odd Pair Sudoku, plus Extra Region, Jigsaw, Skyscraper, Outside and many more variations, whilst other puzzle types include popular picture puzzles Hanjie and Mosaic. Other featured puzzles include Calcudoku, Killer Sudoku, Kakuro, Hashi, Slitherlink, Hitori, Futoshiki, Heyawake and many more With puzzles at a range of difficulties, Sudoku Xtra is suitable for both logic puzzle fans and casual solvers alike. Featuring hand-made puzzles created by Dr Gareth Moore, author of a wide range of puzzle and brain-training books, Sudoku Xtra is easily the best and most comprehensive collection of these puzzles outside Japan. No matter what you like, you're sure to find many things to enjoy in Sudoku Xtra issue 4. Visit SudokuXtra.com for even more details.