Books in the Creative Brain Games series

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.