To play the game, you will need to use your mouse to click on numbers in the grid in order to remove them. Your goal is to remove numbers in such a way that the remaining numbers in each row and column add up to the numbers indicated next to that row or column. If you find yourself stuck, you can click and hold a number to "lock" it in place, or you can use the "Back" button to undo your previous move. If you need additional help, you can click on the "lightbulb" button to see a step-by-step guide on how to solve the puzzle.