Basically I'd like to display a window that I can populate with a number grid with a few numbers missing and the player has to type in the correct numbers to solve the puzzle. Is there anyone that can create this please. I've been trying but I get a bit confused with the window and scene definitions.

So the grid needs to be like
1, 2, 3
4, 5, 6
7, 8, 9

Where maybe the 3 and 8 are missing with just a blank area and the player has to type those two numbers in to solve the grid. I'd like to be able to fill in the grid with any numbers I want and if I want the grid to be 4 x 4 or 5 x 5 I can do that and have as many missing numbers as I choose. It shouldn't be that difficult I just keep getting confused with all the scene and window stuff. This will be for VX