You will be using the mouse to play this online mahjong game. Remove as many tiles from the game board as possible by pairing up sets of two out of each group of four matching tiles. Tiles can only be removed by matching the pairs that have either left or right side open. You can use the hint button to see what matches can be made, but this will cost you 25 points. There are three patterns that you can choose from to start playing this awesome online game. You should strive to complete the task in as less time as possible.