Norwalk Publishing

Sudoku Puzzles Hard Norwalk Publishing

200 Hard SUDOKU PUZZLES that will keep you busy for a long time.
Big Sudoku boards with lots of space to write your solutions, it's also a VERY LARGE PRINT, there is a puzzle for every page with white spaces where you can do your calculations.
All our SUDOKU's are correct and include only one puzzle solution. No hypothesis is needed.
All solutions, easy to read, are shown at the end of the book.
HAPPY SUDOKU!