Mahjong is a strategy game, so firstly it’s best to think carefully about your moves before you make them. The goal is to clear the board by removing all the tiles from the layout. Layouts can differ in pattern (flower, heart, duck, etc.), size and height.
You must remove the tiles by pairs. A pair consists of two tiles which both are "free" and identical.
A tile is "free" when:
When you suffle the tiles 60-second time penalty are added. Another option is to undo last move.
A good plan to follow is to only eliminate tiles (whenever possible) that liberate more tiles. This will always ensure that you have tiles while playing, so you never run out of moves.
You should open up new tiles with every pair removed. Don’t choose obvious pairs every time, such as those from the top levels, or probably you will often lose the game by leaving significant hidden tiles. Avoid getting into positions where the above is likely to happen.
Time is one of the most important keys in the game, so react fast. But be sure to make a good decision given the current situation.
Concentrate your efforts on long rows and tall stacks, since they are the most difficult, therefore must be eliminated at the beginning when there are more tiles.
Try to imagine your movements several steps ahead. The game may have a playable appearance at one point, but if you don’t look ahead and you make a wrong move then the game could end with no solutions. Keep that in mind when there are few tiles.
Improve your visual memory. Some of Mahjong pictures on the tiles look quite similar, especially when board is full and you have to quickly scan many tiles. It’s important to be able to differentiate all the tiles correctly, and often memorize where you last saw “that piece”. This may occur in the board "Mega", which has more pieces.