You need to have SL 2 installed (https://www.microsoft.com/silverlight/resources/installationFiles.aspx?v=2.0). And this is using SL Streaming service from silverlight.live.com.

This is a game that you need to move all the tiles from the upper board to lower board. The numbers between any two touching tiles need to match in the lower board (e.g. the upper number of a tile is 9, then the lower number of the tile you want to move on top of the tile must be 9). Mouse click to select a tile. Then you click on a open spot to move the tile. With Ctrl key pressed, you can have multiple tiles selected. The last tile is the primary selection and when you move multiple tiles, the relative positions between the primary selection and other selected tiles remain the same

You can choose the board size between 2x2 up to 8x8. Let me know if you can play 8x8 and want to play on a bigger board. :) If the game is too hard, you can click "Solve", which will move out the tiles on the lower target board first if they are not at right location, then start moving tiles into the target board. If you get enough hint and want to continue by yourself, press the button again.

Information of the count of each number on each side is provided if you have Information checkbox checked. Move your mouse to Information checkbox to find more. :) Enjoy.