TIP: Too small, or too large the game for you?
Holding down the Ctrl key and scrolling up to zoom in and down to zoom out.
In this game you remove mahjonggs by picking them by pairs. You can only pick a mahjongg if it is on the top of the stack and it can be reached from the left or from the right.
You need to pick the mahjonggs strategically because a single mahjongg can block the access of a lot of mahjonggs, so it is wise to pick such mahjonggs first.