Sudoku Challenges
Sudoku Challenges is a logic-based, combinatorial number-placement puzzle.
The objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 sub-grids that compose the grid (also called “boxes” or “blocks”) contain all of the digits from 1 to 9.
Each puzzle will start at a partially completed grid, which has a single solution.
Hints: How to play Sudoku Challenges
- Tap a cell to select it
- Tap a digit at the bottom row to fill it into the selected cell
- Use eraser to clear the current cell
- Tap the Note button to turn on the draft mode
- Use hints wisely to reveal any cells
