Sudoku: 200 Expert Puzzles 9x9 vol. 12 - Paperback

by Stanislav Korin Korin (Author)

Sudoku Puzzle is a grid with 9 squares deep and 9 squares wide. In each square you need to enter numbers from 1 to 9. The meaning of the puzzle: use the number in each row, column and 3x3 block only once.