WeChat once launched a "Bingwu Horse" zodiac stamp puzzle challenge. The game consisted of nine levels with increasing difficulty. Users had to complete the puzzle within a time limit for each level, earning points for each successful completion. The system ranked users in real-time based on their scores, and the top 100 users at the end of the event received a souvenir.
In the 2025 review of puzzle mobile games, some products incorporated postmodern or sci-fi visual elements, while others adjusted the difficulty and fun by designing specific level mechanics and item systems. Additionally, colorful visuals and adding auxiliary markers to the puzzle pieces were common methods to reduce difficulty.
Common designs for nine-square puzzle games include using specific themes (such as travel) or adding physical interactive effects such as rotation and magnetic attraction to the puzzle pieces to enrich gameplay.
