HOW TO PLAY

How to Play Sudoku: Complete Rules

Learn standard 9x9 Sudoku rules, basic concepts, and solving tips in 2 minutes.

1

Rules 1

Row Rule: Each of the 9 horizontal rows must contain numbers 1 to 9 with no repetition.

2

Rules 2

Column Rule: Each of the 9 vertical columns must contain numbers 1 to 9 with no repetition.

3

Rules 3

3x3 Box Rule: Each 3x3 subgrid must contain numbers 1 to 9 with no repetition.

Essential Tips for Beginners

  • Look for Rows or Boxes with Many Clues: Start by scanning rows and boxes that only have 2 or 3 missing numbers.
  • Use Pencil Notes: Write candidate numbers in corners to keep track of possibilities.
  • Crosshatching Scan: Scan rows and columns for a specific number to eliminate positions in adjacent boxes.
Easy SudokuStrategies