Puzzle 15

Capabilities:
✅ Any puzzle size is supported, from 3x3 to 6x6
✅ interface color customization, as well as color modes ("day" and "night") (in development)
✅ multi-color modes: "rows", "columns", "resolved" and "edges" (fringe) (in development)
✅ convenient control: clicks are supported, as well as the "hover" method
✅ no ads
✅ takes up almost no space on your phone

Enjoy!

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