Logically, there must be a 3rd copy of the same number in the only remaining 9-cell section. Now, look for columns or grids that have 2 of the same number. Each large column will have 3, 3×3 grids and each row will have 3, 3×3 grids.
Tip 2: Break the grid up visually into 3 columns and 3 rows.In many cases, you will find numbers that can only be placed in one position considering the other numbers that are already in its row, column, and 3×3 grid.
Work through the remaining empty cells, trying the numbers that have not been used. Tip 1: Look for rows, columns of 3×3 sections that contain 5 or more numbers.So, if you are a complete beginner, here are a few Sudoku tips that you can use to improve your Sudoku skills. At the same time, learning to play Sudoku can be a bit intimidating for beginners. Sudoku is a fun puzzle game once you get the hang of it.