Puzzles conceived by Japan's greatest puzzle-mind who takes extreme pleasure in hand-creating teasers that will challenge his players. Each edition in this series provides 101 Sudoku games, plus an assortment of new puzzles. Small, and a not much less of a challenge than Tashio's torturous games found in Sudoku Hell (Vertical, 2009), these collections are pefect for the Sudoku whizz on the move.