Sudoku – Number Logic Puzzle
About Sudoku – Number Logic Puzzle
Sudoku is a globally popular number puzzle that originated in Japan. The goal is to fill a 9×9 grid so that each row, column, and 3×3 box contains the digits 1 through 9. It exercises logic and pattern recognition, with difficulty ranging from easy to expert.
How to Play
Click a cell to select it, then type a number 1-9 to fill it. Press 0 or Backspace to clear. Use arrow keys to navigate between cells. Pre-filled numbers are black; your entries are blue. Solve the entire grid correctly to win.
Tips and Strategy
- Scan rows and columns. Look for numbers that can only fit in one spot within a row, column, or box.
- Use elimination. If a number already appears in a row, column, or box, it can’t appear again there.
- Start with easy numbers. Fill in obvious cells first to narrow possibilities.
- Check your work. Blue numbers you enter should never conflict with existing digits.
Game Features
- 9×9 grid with 3×3 sub-grids
- Click to select, type to fill
- Arrow key navigation
- Procedurally generated puzzles
- 40 cells removed for challenge
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