When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku

Sudoku 16 x 16 100 large Sudoku puzzles Place digits from 1 to 16 in each empty cell. Every column, every row and every 4 x 4 box should contain one of each dig

A travel-friendly puzzle-packed book that keeps the brain in shape One of the best ways to exercise the mind is through word and logic games like word searches

From David Graeber, the bestselling author of The Dawn of Everything and Debt—“a master of opening up thought and stimulating debate” (Slate)—a powerful

When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku