The puzzles in "Sudoku Plus "are conceived by Japan's greatest puzzle mind, Tetsuya Nishio, who takes extreme pleasure in handcreating his puzzles. His latest series, "Sudoku Plus" provides 101 Sudoku puzzles plus a handful of Sudoku-inspired variant puzzles! Now, after readers are through with their Sudoku puzzles, they can test out a whole new line of Nishio-created torture! The continued success of Sudoku means that there's a new breed of Sudoku puzzler: experienced, resourceful, and ready for puzzles that transcend the rote specimens one encounters in the daily newspaper, online, or in mass market magazines. It is this sector of puzzle solvers that grows every day, and the sector for which Vertical has conceived its new line of Sudoku books.