Sudoku 9x9 x 5, separated by smaller squares of 3x3 cells. The entire playing field consists of 369 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 of the 9 x 9 square, column 9 x 9 and square 3x3.) An excellent book for free time and mind training. In Sudoku Anti Diagonal each diagonal of the square contains no more than three different digits. An excellent book for free time pastime and mind training. Presented 148 pages. Format 6'' x 9 ''. 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