Players can immediately see the results of their actions - the movement and disappearance of blocks, and they also need to consider how to plan future steps to achieve their ultimate goal. Secondly, the elimination of blocks satisfies people's pursuit of achievement. The completion of each level, the elimination of each row or column of blocks, is a manifestation of a sense of achievement. Finally, the elimination of blocks also satisfies people's desire for exploration. Each level has new challenges and possibilities, which allows players to always have new things to explore and try.