Sorting by Shelves: Numbers is a browser-based puzzle game that challenges players to organize numbered balls on limited shelves. Each shelf holds only three balls, and you must clear them by either matching triplets of identical numbers or combining them to reach a target sum. The game alternates between these two modes, requiring both logical planning and quick arithmetic. Its minimalist design keeps the focus on strategy while smooth performance ensures playability on desktop and mobile. With no downloads required, it’s a free, accessible way to sharpen math skills and enjoy short bursts of brain training. Play games on Y8 - The biggest modern HTML5 gaming platform!