Sudoku Challenges

Have a great fun with this brain game in Pbs kids online games! Sudoku Challenges is a combinatorial number-placement problem based on logic. The purpose is to fill a 9 9 grid with numbers so that each column, row, and each of the nine 3 3 sub-grids that make up the grid (also known as "boxes" or "blocks") contains all of the digits from 1 to 9. Each problem will begin with a half filled grid that has just one solution.

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Key Features:

- Two themes / modes: Day (Light) and Night (Dark)

- Statistics of scores / progress

- Global leaderboard

- Daily challenges to earn bonus score and hints

- Four difficulties: Easy, Medium, Hard, and Master.

Instruction to play:

Tap a cell to select it. Tap a number in the bottom row to put it in the cell you have chosen. Use the eraser to make the current cell blank. If you tap the Note button, the draft mode will be turned on. Use hints well to find any hidden cells.