Select 2 identical mahjongs and eliminate them. After elimination, a green movable area will appear. Move a piece of mahjong until there is no obstruction in the horizontal or vertical direction. It is facing an identical mahjong. Let go and they will disappear automatically. You will gain points and enter the next level. . The game is a test of vision and strategy. Can you complete the challenge? Tap the first two mahjongs, and then drag the mahjong to move and find the best direction.