Pocket Posh Sudoku Fusion 2: 100 Puzzles

Pocket Posh Sudoku Fusion 2presents 100 puzzles in four difficulty levels. In addition to the rules of traditional Sudoku, the sum of the digits in each inner cage must equal the number in the top left corner of the cage. This portable package is part of a best-selling series featuring highly stylized, embellished covers and boasting 5 million copies in print.