Calcudoku Logic Puzzles: 500 Easy to Hard (9x9): : Keep Your Brain Young - Khalid Alzamili

Calcudoku (also known as KenKen, KenDoku, Mathdoku, Square Wisdom) is a logic puzzle with simple rules and challenging solutions. It is similar to Sudoku and Killer Sudoku except you're dealing with +, -, x and . This Logic Puzzles book is packed with the following features: - 500 Calcudoku (9x9) Puzzles from Easy to Hard. - Answers to every puzzle are provided. - Each puzzle is guaranteed to have only one solution. Includes free bonus puzzles you can download book ( Tons of Sudoku Puzzles for Adults & Seniors ) Includes free bonus puzzles you can download book ( Word Search With Hidden Message: 102 Puzzles for Adults and Seniors)