Hard Sudoku puzzle 50 challenging sudoku puzzles to solve 4*4 sudoku grid

Hard Sudoku puzzle 50 challenging sudoku puzzles to solve 4*4 sudoku gridBook FeaturesMatte-finished cover 8.5*11 page-size High-quality print! Look inside "sample" 50 UNIQUE designs Perfect as a gift to your family members! Scroll Up and Grab Your Copy Today!