PUZZLE NOTES
How to Start Solving Sudoku
Sudoku is a logic puzzle. Fill each row, each column and each 3×3 box with digits 1 through 9, without repeating a digit.
Try this approach
Start with a row, column or box that already has many digits. List the missing digits mentally. For each empty cell, check its row, column and box to see which digits are still possible. If only one digit fits, you have found a safe move.
Take your time. You do not need to guess to enjoy a well-formed Sudoku puzzle.