Sudoku number puzzles have taken the world by storm, and the craze is now hitting North America! Try one and you'll become hooked, too!
Jump into Sudoku Sums is a challenging new variety of Sudoku puzzles with two types of clues: the traditional number clue in a single cell, and a sum clue that covers two or more cells.

Sudoku number puzzles have taken the world by storm, and the craze is now hitting North America! Addictive Sudoku puzzles involve reasoning and logic---no math expertise required! Try one and you'll become hooked, too! Super Sudoku Book 2 includes 76 easy to hard puzzles.