In the new exciting online game Weekend Sudoku 15 you will again try to solve such a puzzle as Japanese Sudoku. To pass all the levels of this puzzle you will need to pretty much strain your intellect. In front of you on the screen you will see a playing field of a certain size inside, divided into an equal number of cells. In the game, you are required to fill in the free cells with numbers from 1 to 9 so that in each row, in each column and in each small 3 × 3 square, each number would occur only once. The complexity of Sudoku depends on the number of initially filled cells and on the methods that need to be applied to solve it. By solving Sudoku you will get points in the game Weekend Sudoku 15 and move on to the next more difficult level.