The Sudoku craze continues! And now, players are ready for a real challenge. Ready to take it up a notch? EXPERT SUDOKU features over 300 challenging puzzles created by hand by Nikoli, the Japanese company that originated Sudoku. A step up from beginner puzzles, but not quite as tough as those in X-Treme Sudoku, think of this as brown-belt Sudoku. As Tim Preston, publishing director of Puzzler Media, Britain's biggest seller of crossword and cryptogram puzzles, has said, 'It is a matter of great pride to get your puzzle into one of Nikoli's magazines. Handmade puzzles are much better...It gives you the satisfaction that you are pitting your wits against an individual who has thought about what your next step would be and has tried to obscure the path.'