The aim is to move one number at a time so that all numbers are consecutive from top to bottom and from left to right.
You may choose grid sizes from 3 x 3 to 10 x 10.
Use the mouse to choose which number to move.
The number chosen will automatically slide to the empty square.
The number of moves made is shown at the bottom of the screen.
Choose 'Demonstration' if you wish to see the program run automatically.
It will randomly choose a grid size, start with a jumbled grid of numbers and show each move required to obtain the solution.
Choose PLAY to play a game yourself. Then choose the grid size required.
At any time, choosing NEW GAME will take you back to the main screen.
After the download, unzip the folder, open it and run the .exe file.