Tidal Nine
Tidal Nine is a mobile-first sudoku puzzle where a traditional 9x9 grid becomes a sunlit pool mosaic. Touch an empty tile and send the right number across the water, completing every row, column and 3x3 pool. Each placement sends ripples across the surface and finishing a box triggers bright caustics. When the board is balanced, an English completion card shows your time, moves and a miniature board, ready to share to the community or replay instantly. The whole experience runs locally with no login, no external services and no background music, and ships in English with an optional Chinese toggle.
Created by haojie.huang
