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Herzlich Willkommen!
Ninja Sudoku presents a unique collection of puzzles to do anytime, anywhere, perfect for those who want to take their sudoku skills to the next level.
Roland Hall has worked as a Commissioning Editor of puzzle books for a number of years. He was responsible for book publishing with many best-selling puzzle brands, including Mensa, The Puzzler and Take A Break, and devised a number of highly popular themed puzzle books and packs on subjects as diverse as Sherlock Holmes, Star Trek, Pride and Prejudice and Dante's Inferno. He has written and contributed to many quiz and puzzle books, including Anagram Challenge, and Wordle Challenge for Kids.