Creative Brain Games Extreme Sudoku

The ultimate collection for sudoku enthusiasts! These puzzles are not intended for the beginner, the dabbler, or the faint of heart! Put your problem-solving talents to the test with these 50 puzzles designed by a sudoku master for advanced enthusiasts. A mix of 9 x 9 and 16 x 16 square puzzles will challenge even the most skilled sudoku players. Solutions appear at the end of the book.