Objective
Race the computer to score the most points by filling a 6 by 6 Sudoku grid with correct numbers.
How to Play
- Choose Easy for a slow computer with some wrong attempts or Hard for a fast, accurate computer.
- Some cells are already filled. Select an empty cell, then choose a number.
- Rows, columns, and each 2 by 3 box must contain each number only once.
- A correct placement turns into a protected answer and gives you 1 point.
- A wrong placement stays visible as wrong, costs 1 point, and can be fixed later.
- The computer fills cells on its own timer while you play.
How to Win
When every original blank cell has the correct number, the higher score wins. Equal scores tie.
Tips
- Check the row, column, and box before choosing a number.
- Look for cells where only one number can fit.
- A safe point is better than a fast guess that loses a point.