Experience the classic 15-puzzle re-imagined in this premium Mastermind Edition. Sliding Puzzle features a sleek dark user interface, vibrant procedural Gemstone tile colors, and a dynamic audio engine that generates satisfying sound effects in real-time. Challenge yourself across three difficulty levels (3x3, 4x4, and 5x5 grids). Stuck on a hard level? Use the Watch & Solve feature to unlock a smart AI assistant that automatically solves the puzzle for you. Fully optimized for smooth gameplay.