Build the foundation.

Start here

Start with the simplest deductions.

Beginner Sudoku is less about knowing tricks and more about learning where to look.

Full house, scanning, naked single, and hidden single are the four cornerstones for solving any classic Sudoku puzzle. All other solving techniques eventually reduce a complex puzzle into the stage where these four are the final steps to complete a puzzle. Master these basic logical steps to solve easy grids and build the foundation for tougher puzzles