Sandwich version of Counter-2048.
Game has 2 sandwich layers with tiles fields: the bottom layer and the upper transparent layer.
Tiles on both layers are shifting automatically. When you see two tiles with the same values coinciding on the top and bottom layers - click on these tiles to merge them.
The resulting tile receives the value of the sum of two merged tiles.
Your aim is to get sandwich tile value over 100 (in real situation, it may be 128).
Click on equal tiles.