Each solitaire mahjong tile layout will require a unique approach. However, the general strategy is to keep removing tiles in such a way that each removal opens up more possibilities for future matching. Choosing obvious matching tiles each time, such as those from the top levels, will often end up in a lost game by leaving essential mahjong tiles blocked.
React fast. Time is the most important factor in the game so it is imperative to be quick. Fast reaction means making the correct decision given the current situation based on the result of previous decisions.
Good strategy will have the player visualizing moves several steps ahead. The game may look immediately playable, but if future moves are not considered, the wrong choice may be made which would make a winnable mahjong game impossible.
Visual memory is key. Some MahJong characters look quite similar, especially when quickly scanning many tiles at once. It is important to be able to distinguish all of the mahjong tiles correctly and often memorize where "that piece" was.