Divided To 3x3 Sub Grids Called "regions": Region - Sudoku Begins With Some Of The Grid Cells Already Filled With Numbers:
Sudoku A 08.13
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a chess sudoku online game. sudoku rules - sudoku is played over a 9x9 grid, divided to 3x3 sub grids called "regions": region - sudoku begins with some of the grid cells already filled with numbers:,