Top 1 Games Similar to Tic Tac Toe

Sudoku is alogic-based,combinatorialnumber-placement puzzle. The objective isto fill a9×9 grid withdigits so that each column, each row, andeach of thenine 3×3sub-grids that compose the grid (also called"boxes","blocks","regions", or "sub-squares") contains all of thedigitsfrom 1 to9. The puzzle setter provides a partially completedgrid,whichtypically has a unique solution.