Sudoku 2020: 366 Daily Sudoku Puzzles For The 2020 Leap Year. 5 Levels Of Difficulty (Very Easy To Very Hard)

The classic Sudoku game involves a grid of 81 squares. The grid is divided into nine blocks, each containing nine squares.The rules of the game are simple: each of the nine blocks has to contain all the numbers 1-9 within its squares. Each number can only appear once in a row, column or box.The difficulty lies in that each vertical nine-square column, or horizontal nine-square line across, within the larger square, must also contain the numbers 1-9, without repetition or omission.Every puzzle has just one correct solution.