401 Sudoku Pitstop. Vol. 3.

Sudoku 9x9, separated by smaller squares of 3x3 cells. The entire playing field consists of 81 cells. It is required to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each row, column, and 3x3 square. An excellent book for free time pastime and mind training. Presented 141 pages. Format 8'' x 10 ''. 4 Sudoku puzzle on the page. Conveniently positioned for better perception. 401 unique puzzles. 100 EASY + 100 MEDIUM + 100 HARD + 101 VERY HARD I hope you will enjoy my book. I would also really appreciate it if you could write a review. Thank you. Best regards, Andrii Pitenko