Mahjong Dimensions: 900 seconds

The game starts, the timer is set at 900 seconds and will slowly decrease. You will see a cube in front of you with different tiles which you have to connect with one another to create a pair. Select a cube by clicking on it and find another cube with the same symbol. The hard part of Mahjong is, you can only remove tiles which are on the outside of the cube. Either left or right from it, no other tile can be remaining when you select it for a pair. Work your way from outwards to inwards to complete the cube and do not let any tile remaining before time runs out.