Smart Sudoku
Play a classic sudoku game and fill in all the blank cells. Look carefully at the numbers already given. The harder the game mode you choose, the fewer numbers will be given at the start of the game. The numbers 1-9 may only occur once per row, column, and block of 9 cells. Can you figure out which numbers to write in the blank cells? You will need some precision and patience to solve these fun sudoku puzzles
