Author Description

CCalcudoku ("KenKen", "KENKEN", "KenDoku", "Mathdoku", "Square Wisdom") is a mathematical and logical puzzle loosely similar to sudoku. It was invented by a Japanese mathematics teacher Tetsuya Miyamoto. Logic puzzles improve concentration, relaxation from stress, and better memory and problem-solving skills are a few of the many benefits. All it takes is finding the right material that will challenge you, no matter what your level of skill is. What this book provides: - Three levels of difficulty easy, medium, hard - Solutions for every puzzle included in back of book - 68 easy, 68 medium, 68 hard - 4 puzzles per Page - 204 Puzzles. - Instruction included in the book on how to solve them. Plenty of hours of fun! Great gift for all new and "old" mathematical and logic puzzle fans! We are delighted that you noticed and chose Calcudoku Puzzle Book. Have fun and solve Calcudoku puzzles!!