소개
Love to solve difficult Sudoku puzzles? Then you are in the right place!The goal is to fill in the empty cells, one number in each, so that each column, row, and region contains the numbers 1 through 16 exactly once.?Solving this sudoku book is fun but requires some advanced solving techniques. Every puzzle in this Sudoku Puzzle Book has been carefully checked to ensure that each puzzle has only 1 solution.All the puzzles are challenging and entertaining.