Game Ultimate Sudoku

A puzzle game from Japan that has conquered the entire world. Fill in the empty cells with numbers from 1 to 9. In each row, column, or 3x3 block, each number can appear only once. 3 different game modes: Cell first: First click on the cell you want to fill and then select a number. Number first: First click on the number and then click on the cell in which you want to enter this number. Note Mode: Type the option in an empty space using the keyboard or number buttons.