The game - Shanghai - Sega Master System | SMS

This game with 144 tiles is from the Chinese game MahJong. At the very beginning, the tiles are shuffled in a certain shape. The point is to remove all the tiles (they are removed two identical). But the tiles must be free, i.e. there is nothing on top and can slide left and right. Here are the rules. I used to love playing this game, but now...